Electromagnetic waves common mistakes

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: State that electromagnetic waves are transverse waves..

Answer by clearly explaining how to state that electromagnetic waves are transverse waves..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: State that all electromagnetic waves travel at the same velocity through a vacuum..

Answer by clearly explaining how to state that all electromagnetic waves travel at the same velocity through a vacuum..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Identify radio waves as the lowest frequency electromagnetic waves in the GCSE spectrum..

Answer by clearly explaining how to identify radio waves as the lowest frequency electromagnetic waves in the GCSE spectrum..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Identify gamma rays as the highest frequency electromagnetic waves in the GCSE spectrum..

Answer by clearly explaining how to identify gamma rays as the highest frequency electromagnetic waves in the GCSE spectrum..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Recall the order of the electromagnetic spectrum from radio waves to gamma rays..

Answer by clearly explaining how to recall the order of the electromagnetic spectrum from radio waves to gamma rays..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Recall the order of the electromagnetic spectrum from gamma rays to radio waves..

Answer by clearly explaining how to recall the order of the electromagnetic spectrum from gamma rays to radio waves..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how wavelength changes across the electromagnetic spectrum..

Answer by clearly explaining how to describe how wavelength changes across the electromagnetic spectrum..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how frequency changes across the electromagnetic spectrum..

Answer by clearly explaining how to describe how frequency changes across the electromagnetic spectrum..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that higher frequency electromagnetic waves have shorter wavelengths..

Answer by clearly explaining how to explain that higher frequency electromagnetic waves have shorter wavelengths..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that lower frequency electromagnetic waves have longer wavelengths..

Answer by clearly explaining how to explain that lower frequency electromagnetic waves have longer wavelengths..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish visible light from the rest of the electromagnetic spectrum..

Answer by clearly explaining how to distinguish visible light from the rest of the electromagnetic spectrum..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Identify ultraviolet, X-rays and gamma rays as ionising radiation..

Answer by clearly explaining how to identify ultraviolet, X-rays and gamma rays as ionising radiation..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish ionising from non-ionising electromagnetic radiation..

Answer by clearly explaining how to distinguish ionising from non-ionising electromagnetic radiation..

Types of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Use spectrum order to compare radio, microwave, infrared, visible, ultraviolet, X-ray and gamma radiation..

Answer by clearly explaining how to use spectrum order to compare radio, microwave, infrared, visible, ultraviolet, X-ray and gamma radiation..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that electromagnetic waves transfer energy from source to absorber..

Answer by clearly explaining how to explain that electromagnetic waves transfer energy from source to absorber..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how electromagnetic waves can be absorbed by matter..

Answer by clearly explaining how to describe how electromagnetic waves can be absorbed by matter..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how electromagnetic waves can be transmitted through matter..

Answer by clearly explaining how to describe how electromagnetic waves can be transmitted through matter..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how electromagnetic waves can be reflected at surfaces..

Answer by clearly explaining how to describe how electromagnetic waves can be reflected at surfaces..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how electromagnetic waves can be refracted at boundaries..

Answer by clearly explaining how to describe how electromagnetic waves can be refracted at boundaries..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that electromagnetic waves travel at different speeds in different media..

Answer by clearly explaining how to explain that electromagnetic waves travel at different speeds in different media..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Apply wave speed = frequency x wavelength to electromagnetic waves..

Answer by clearly explaining how to apply wave speed = frequency x wavelength to electromagnetic waves..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why wavelength changes when wave speed changes at a boundary but frequency remains the same..

Answer by clearly explaining how to explain why wavelength changes when wave speed changes at a boundary but frequency remains the same..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish absorption from emission in electromagnetic wave contexts..

Answer by clearly explaining how to distinguish absorption from emission in electromagnetic wave contexts..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish reflection from refraction in electromagnetic wave contexts..

Answer by clearly explaining how to distinguish reflection from refraction in electromagnetic wave contexts..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that ionising radiation can damage living cells..

Answer by clearly explaining how to explain that ionising radiation can damage living cells..

Properties of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Interpret qualitative information about electromagnetic wave risk and energy transfer..

Answer by clearly explaining how to interpret qualitative information about electromagnetic wave risk and energy transfer..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of radio waves for television and radio communication..

Answer by clearly explaining how to describe the use of radio waves for television and radio communication..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of microwaves for satellite communication..

Answer by clearly explaining how to describe the use of microwaves for satellite communication..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of microwaves for cooking food..

Answer by clearly explaining how to describe the use of microwaves for cooking food..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why microwaves used for cooking are absorbed by water molecules in food..

Answer by clearly explaining how to explain why microwaves used for cooking are absorbed by water molecules in food..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of infrared radiation for electrical heaters..

Answer by clearly explaining how to describe the use of infrared radiation for electrical heaters..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of infrared radiation for thermal imaging and night vision..

Answer by clearly explaining how to describe the use of infrared radiation for thermal imaging and night vision..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of visible light for vision, photography and optical communication..

Answer by clearly explaining how to describe the use of visible light for vision, photography and optical communication..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of ultraviolet radiation in fluorescent lamps and security marking..

Answer by clearly explaining how to describe the use of ultraviolet radiation in fluorescent lamps and security marking..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of X-rays for medical imaging..

Answer by clearly explaining how to describe the use of X-rays for medical imaging..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of gamma rays for sterilising medical equipment..

Answer by clearly explaining how to describe the use of gamma rays for sterilising medical equipment..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe the use of gamma rays in cancer treatment..

Answer by clearly explaining how to describe the use of gamma rays in cancer treatment..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that electromagnetic wave uses depend on wavelength, frequency, penetration and absorption..

Answer by clearly explaining how to explain that electromagnetic wave uses depend on wavelength, frequency, penetration and absorption..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Describe hazards from ultraviolet radiation, X-rays and gamma rays..

Answer by clearly explaining how to describe hazards from ultraviolet radiation, X-rays and gamma rays..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why exposure to ionising radiation must be limited..

Answer by clearly explaining how to explain why exposure to ionising radiation must be limited..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Compare benefits and risks of medical uses of ionising radiation..

Answer by clearly explaining how to compare benefits and risks of medical uses of ionising radiation..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish communication uses from heating, imaging and sterilising uses..

Answer by clearly explaining how to distinguish communication uses from heating, imaging and sterilising uses..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Link each electromagnetic wave application to a named region of the spectrum..

Answer by clearly explaining how to link each electromagnetic wave application to a named region of the spectrum..

Uses and applications of electromagnetic waves common mistake 1

Giving a vague answer instead of directly addressing: Avoid using vague statements about radiation without identifying the wave type and property..

Answer by clearly explaining how to avoid using vague statements about radiation without identifying the wave type and property..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe a convex lens as a converging lens..

Answer by clearly explaining how to (Physics only) Describe a convex lens as a converging lens..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe a concave lens as a diverging lens..

Answer by clearly explaining how to (Physics only) Describe a concave lens as a diverging lens..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Define the principal focus of a convex lens..

Answer by clearly explaining how to (Physics only) Define the principal focus of a convex lens..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Define the focal length of a lens..

Answer by clearly explaining how to (Physics only) Define the focal length of a lens..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Draw ray diagrams for a convex lens using principal rays..

Answer by clearly explaining how to (Physics only) Draw ray diagrams for a convex lens using principal rays..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Draw ray diagrams for a concave lens using principal rays..

Answer by clearly explaining how to (Physics only) Draw ray diagrams for a concave lens using principal rays..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how a convex lens can form a real image..

Answer by clearly explaining how to (Physics only) Describe how a convex lens can form a real image..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how a convex lens can form a virtual image when the object is inside the focal length..

Answer by clearly explaining how to (Physics only) Describe how a convex lens can form a virtual image when the object is inside the focal length..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe the image formed by a concave lens as virtual, upright and diminished..

Answer by clearly explaining how to (Physics only) Describe the image formed by a concave lens as virtual, upright and diminished..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Use ray diagrams to determine image position and size qualitatively..

Answer by clearly explaining how to (Physics only) Use ray diagrams to determine image position and size qualitatively..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Distinguish real images from virtual images..

Answer by clearly explaining how to (Physics only) Distinguish real images from virtual images..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain how refraction at lens surfaces changes the direction of light rays..

Answer by clearly explaining how to (Physics only) Explain how refraction at lens surfaces changes the direction of light rays..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Identify focal length from a simple lens diagram..

Answer by clearly explaining how to (Physics only) Identify focal length from a simple lens diagram..

Lenses (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Avoid confusing lens convergence with reflection from a mirror..

Answer by clearly explaining how to (Physics only) Avoid confusing lens convergence with reflection from a mirror..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe visible light as the part of the electromagnetic spectrum detected by the eye..

Answer by clearly explaining how to (Physics only) Describe visible light as the part of the electromagnetic spectrum detected by the eye..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that white light contains all colours of visible light..

Answer by clearly explaining how to (Physics only) Explain that white light contains all colours of visible light..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how a transparent colour filter transmits some colours and absorbs others..

Answer by clearly explaining how to (Physics only) Describe how a transparent colour filter transmits some colours and absorbs others..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain the colour of a transparent object in terms of transmitted light..

Answer by clearly explaining how to (Physics only) Explain the colour of a transparent object in terms of transmitted light..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain the colour of an opaque object in terms of reflected and absorbed light..

Answer by clearly explaining how to (Physics only) Explain the colour of an opaque object in terms of reflected and absorbed light..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain why a white object appears white in white light..

Answer by clearly explaining how to (Physics only) Explain why a white object appears white in white light..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain why a black object appears black in white light..

Answer by clearly explaining how to (Physics only) Explain why a black object appears black in white light..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how red, green and blue light can be combined to make other colours..

Answer by clearly explaining how to (Physics only) Describe how red, green and blue light can be combined to make other colours..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Distinguish colour addition from colour filtering..

Answer by clearly explaining how to (Physics only) Distinguish colour addition from colour filtering..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Predict the appearance of coloured objects under different colours of light..

Answer by clearly explaining how to (Physics only) Predict the appearance of coloured objects under different colours of light..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Use absorption, reflection and transmission to explain colour observations..

Answer by clearly explaining how to (Physics only) Use absorption, reflection and transmission to explain colour observations..

Visible light (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Avoid confusing visible light colour with thermal infrared radiation..

Answer by clearly explaining how to (Physics only) Avoid confusing visible light colour with thermal infrared radiation..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe thermal radiation as electromagnetic radiation emitted by all bodies..

Answer by clearly explaining how to (Physics only) Describe thermal radiation as electromagnetic radiation emitted by all bodies..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that the hotter an object is, the more infrared radiation it emits in a given time..

Answer by clearly explaining how to (Physics only) Explain that the hotter an object is, the more infrared radiation it emits in a given time..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe a perfect black body as an object that absorbs all radiation incident on it..

Answer by clearly explaining how to (Physics only) Describe a perfect black body as an object that absorbs all radiation incident on it..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) State that a perfect black body does not reflect or transmit radiation..

Answer by clearly explaining how to (Physics only) State that a perfect black body does not reflect or transmit radiation..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that a black body is the best possible emitter of radiation..

Answer by clearly explaining how to (Physics only) Explain that a black body is the best possible emitter of radiation..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that an object's temperature depends on the balance between radiation absorbed and radiation emitted..

Answer by clearly explaining how to (Physics only) Explain that an object's temperature depends on the balance between radiation absorbed and radiation emitted..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that temperature increases when an object absorbs radiation faster than it emits radiation..

Answer by clearly explaining how to (Physics only) Explain that temperature increases when an object absorbs radiation faster than it emits radiation..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that temperature decreases when an object emits radiation faster than it absorbs radiation..

Answer by clearly explaining how to (Physics only) Explain that temperature decreases when an object emits radiation faster than it absorbs radiation..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how the intensity and wavelength distribution of radiation emitted by a body depend on temperature..

Answer by clearly explaining how to (Physics only) Describe how the intensity and wavelength distribution of radiation emitted by a body depend on temperature..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that as temperature increases, the intensity of emitted radiation increases..

Answer by clearly explaining how to (Physics only) Explain that as temperature increases, the intensity of emitted radiation increases..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that as temperature increases, the peak wavelength of emitted radiation decreases..

Answer by clearly explaining how to (Physics only) Explain that as temperature increases, the peak wavelength of emitted radiation decreases..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Interpret simple black body radiation curves qualitatively..

Answer by clearly explaining how to (Physics only) Interpret simple black body radiation curves qualitatively..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Distinguish black body radiation from visible-light colour..

Answer by clearly explaining how to (Physics only) Distinguish black body radiation from visible-light colour..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Distinguish absorption of radiation from emission of radiation..

Answer by clearly explaining how to (Physics only) Distinguish absorption of radiation from emission of radiation..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: Required practical: investigate how the amount of infrared radiation absorbed depends on the nature of a surface..

Answer by clearly explaining how to required practical: investigate how the amount of infrared radiation absorbed depends on the nature of a surface..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: Required practical: investigate how the amount of infrared radiation radiated depends on the nature of a surface..

Answer by clearly explaining how to required practical: investigate how the amount of infrared radiation radiated depends on the nature of a surface..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: Required practical: compare dull black, shiny and light-coloured surfaces in infrared radiation investigations..

Answer by clearly explaining how to required practical: compare dull black, shiny and light-coloured surfaces in infrared radiation investigations..

Black body radiation (physics only) common mistake 1

Giving a vague answer instead of directly addressing: Required practical: identify control variables and sources of uncertainty in infrared radiation investigations..

Answer by clearly explaining how to required practical: identify control variables and sources of uncertainty in infrared radiation investigations..