Waves in air, fluids and solids common mistakes

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Describe a wave as a disturbance that transfers energy from one place to another..

Answer by clearly explaining how to describe a wave as a disturbance that transfers energy from one place to another..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: State that waves transfer energy without transferring matter overall..

Answer by clearly explaining how to state that waves transfer energy without transferring matter overall..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Describe oscillations in a transverse wave as perpendicular to the direction of energy transfer..

Answer by clearly explaining how to describe oscillations in a transverse wave as perpendicular to the direction of energy transfer..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Describe oscillations in a longitudinal wave as parallel to the direction of energy transfer..

Answer by clearly explaining how to describe oscillations in a longitudinal wave as parallel to the direction of energy transfer..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Identify ripples on water and electromagnetic waves as examples of transverse waves..

Answer by clearly explaining how to identify ripples on water and electromagnetic waves as examples of transverse waves..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Identify sound waves in air as examples of longitudinal waves..

Answer by clearly explaining how to identify sound waves in air as examples of longitudinal waves..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Describe compressions as regions where particles are closer together in a longitudinal wave..

Answer by clearly explaining how to describe compressions as regions where particles are closer together in a longitudinal wave..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Describe rarefactions as regions where particles are further apart in a longitudinal wave..

Answer by clearly explaining how to describe rarefactions as regions where particles are further apart in a longitudinal wave..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish the direction of vibration from the direction of wave travel..

Answer by clearly explaining how to distinguish the direction of vibration from the direction of wave travel..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why mechanical waves need a medium..

Answer by clearly explaining how to explain why mechanical waves need a medium..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why electromagnetic waves can travel through a vacuum..

Answer by clearly explaining how to explain why electromagnetic waves can travel through a vacuum..

Transverse and longitudinal waves common mistake 1

Giving a vague answer instead of directly addressing: Use diagrams to distinguish transverse and longitudinal wave patterns..

Answer by clearly explaining how to use diagrams to distinguish transverse and longitudinal wave patterns..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Define amplitude as the maximum displacement of a point on a wave from its undisturbed position..

Answer by clearly explaining how to define amplitude as the maximum displacement of a point on a wave from its undisturbed position..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Define wavelength as the distance from a point on one wave to the equivalent point on the adjacent wave..

Answer by clearly explaining how to define wavelength as the distance from a point on one wave to the equivalent point on the adjacent wave..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Define frequency as the number of waves passing a point each second..

Answer by clearly explaining how to define frequency as the number of waves passing a point each second..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: State that frequency is measured in hertz..

Answer by clearly explaining how to state that frequency is measured in hertz..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Define period as the time taken for one complete wave to pass a point..

Answer by clearly explaining how to define period as the time taken for one complete wave to pass a point..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Use the relationship period = 1 divided by frequency..

Answer by clearly explaining how to use the relationship period = 1 divided by frequency..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Calculate period from frequency..

Answer by clearly explaining how to calculate period from frequency..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Calculate frequency from period..

Answer by clearly explaining how to calculate frequency from period..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Define wave speed as the speed at which energy is transferred through a medium or through space..

Answer by clearly explaining how to define wave speed as the speed at which energy is transferred through a medium or through space..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Use the equation wave speed = frequency x wavelength..

Answer by clearly explaining how to use the equation wave speed = frequency x wavelength..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Calculate wave speed from frequency and wavelength..

Answer by clearly explaining how to calculate wave speed from frequency and wavelength..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Calculate frequency from wave speed and wavelength..

Answer by clearly explaining how to calculate frequency from wave speed and wavelength..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Calculate wavelength from wave speed and frequency..

Answer by clearly explaining how to calculate wavelength from wave speed and frequency..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Identify wavelength in metres, frequency in hertz and wave speed in metres per second..

Answer by clearly explaining how to identify wavelength in metres, frequency in hertz and wave speed in metres per second..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Apply MS 3b and MS 3c skills when rearranging wave speed and frequency-period equations..

Answer by clearly explaining how to apply MS 3b and MS 3c skills when rearranging wave speed and frequency-period equations..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Apply MS 4a skills when interpreting wave graphs and wavefront diagrams..

Answer by clearly explaining how to apply MS 4a skills when interpreting wave graphs and wavefront diagrams..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: make observations to identify suitable apparatus for measuring wave frequency, wavelength and speed in a ripple tank..

Answer by clearly explaining how to required practical: make observations to identify suitable apparatus for measuring wave frequency, wavelength and speed in a ripple tank..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: make observations to identify suitable apparatus for measuring wave frequency, wavelength and speed in a solid..

Answer by clearly explaining how to required practical: make observations to identify suitable apparatus for measuring wave frequency, wavelength and speed in a solid..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: measure wavelength using a ruler or scaled image of wavefronts..

Answer by clearly explaining how to required practical: measure wavelength using a ruler or scaled image of wavefronts..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: determine frequency using an oscillator, signal generator or timing method where appropriate..

Answer by clearly explaining how to required practical: determine frequency using an oscillator, signal generator or timing method where appropriate..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: calculate wave speed from measured frequency and wavelength..

Answer by clearly explaining how to required practical: calculate wave speed from measured frequency and wavelength..

Properties of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: evaluate uncertainty and repeatability in wave-speed measurements..

Answer by clearly explaining how to required practical: evaluate uncertainty and repeatability in wave-speed measurements..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Describe reflection as a change in direction when a wave meets a boundary and remains in the same medium..

Answer by clearly explaining how to describe reflection as a change in direction when a wave meets a boundary and remains in the same medium..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: State that the angle of incidence equals the angle of reflection for reflection from a plane surface..

Answer by clearly explaining how to state that the angle of incidence equals the angle of reflection for reflection from a plane surface..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Draw and label the normal, incident ray and reflected ray in a reflection diagram..

Answer by clearly explaining how to draw and label the normal, incident ray and reflected ray in a reflection diagram..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Explain refraction as a change in direction when a wave changes speed at a boundary between media..

Answer by clearly explaining how to explain refraction as a change in direction when a wave changes speed at a boundary between media..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how refraction depends on a change in wave speed..

Answer by clearly explaining how to describe how refraction depends on a change in wave speed..

Reflection and refraction of waves common mistake 1

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

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

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Use wavefront diagrams to show reflection at a plane boundary..

Answer by clearly explaining how to use wavefront diagrams to show reflection at a plane boundary..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Use ray diagrams to show refraction at a boundary between transparent materials..

Answer by clearly explaining how to use ray diagrams to show refraction at a boundary between transparent materials..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: investigate reflection of light from different types of surface..

Answer by clearly explaining how to required practical: investigate reflection of light from different types of surface..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: investigate refraction of light by different substances..

Answer by clearly explaining how to required practical: investigate refraction of light by different substances..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: measure angles of incidence, reflection and refraction using a protractor..

Answer by clearly explaining how to required practical: measure angles of incidence, reflection and refraction using a protractor..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Required practical: draw ray diagrams accurately from experimental data..

Answer by clearly explaining how to required practical: draw ray diagrams accurately from experimental data..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why repeated angle measurements improve reliability in reflection and refraction practicals..

Answer by clearly explaining how to explain why repeated angle measurements improve reliability in reflection and refraction practicals..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Identify sources of uncertainty when tracing rays through transparent blocks..

Answer by clearly explaining how to identify sources of uncertainty when tracing rays through transparent blocks..

Reflection and refraction of waves common mistake 1

Giving a vague answer instead of directly addressing: Apply WS and MS skills when recording, plotting and interpreting reflection and refraction data..

Answer by clearly explaining how to apply WS and MS skills when recording, plotting and interpreting reflection and refraction data..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Describe sound waves in air as longitudinal waves..

Answer by clearly explaining how to describe sound waves in air as longitudinal waves..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Explain that sound waves are caused by vibrating objects..

Answer by clearly explaining how to explain that sound waves are caused by vibrating objects..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Describe how sound waves travel through a medium by compressions and rarefactions..

Answer by clearly explaining how to describe how sound waves travel through a medium by compressions and rarefactions..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why sound cannot travel through a vacuum..

Answer by clearly explaining how to explain why sound cannot travel through a vacuum..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Link higher frequency sound waves to higher pitch..

Answer by clearly explaining how to link higher frequency sound waves to higher pitch..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Link greater amplitude sound waves to louder sounds..

Answer by clearly explaining how to link greater amplitude sound waves to louder sounds..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Describe echoes as reflected sound waves..

Answer by clearly explaining how to describe echoes as reflected sound waves..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Interpret simple oscilloscope traces for sound waves..

Answer by clearly explaining how to interpret simple oscilloscope traces for sound waves..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Distinguish pitch from loudness using frequency and amplitude..

Answer by clearly explaining how to distinguish pitch from loudness using frequency and amplitude..

Sound waves common mistake 1

Giving a vague answer instead of directly addressing: Explain why the speed of sound differs in solids, liquids and gases..

Answer by clearly explaining how to explain why the speed of sound differs in solids, liquids and gases..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Define ultrasound as sound with frequency above the upper limit of human hearing..

Answer by clearly explaining how to (Physics only) Define ultrasound as sound with frequency above the upper limit of human hearing..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that ultrasound waves are partially reflected at boundaries between media..

Answer by clearly explaining how to (Physics only) Explain that ultrasound waves are partially reflected at boundaries between media..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Use reflected ultrasound pulses to determine distance from time delay and wave speed..

Answer by clearly explaining how to (Physics only) Use reflected ultrasound pulses to determine distance from time delay and wave speed..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how ultrasound can be used for medical imaging..

Answer by clearly explaining how to (Physics only) Describe how ultrasound can be used for medical imaging..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how ultrasound can be used for industrial flaw detection..

Answer by clearly explaining how to (Physics only) Describe how ultrasound can be used for industrial flaw detection..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain why ultrasound can detect boundaries inside materials or the body..

Answer by clearly explaining how to (Physics only) Explain why ultrasound can detect boundaries inside materials or the body..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Distinguish ultrasound from audible sound using frequency..

Answer by clearly explaining how to (Physics only) Distinguish ultrasound from audible sound using frequency..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe seismic P-waves as longitudinal waves..

Answer by clearly explaining how to (Physics only) Describe seismic P-waves as longitudinal waves..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe seismic S-waves as transverse waves..

Answer by clearly explaining how to (Physics only) Describe seismic S-waves as transverse waves..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that P-waves can travel through solids and liquids..

Answer by clearly explaining how to (Physics only) Explain that P-waves can travel through solids and liquids..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Explain that S-waves can travel through solids but not liquids..

Answer by clearly explaining how to (Physics only) Explain that S-waves can travel through solids but not liquids..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Describe how seismic waves provide evidence for the structure of the Earth..

Answer by clearly explaining how to (Physics only) Describe how seismic waves provide evidence for the structure of the Earth..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Interpret simple time-delay data for echoes or seismic waves..

Answer by clearly explaining how to (Physics only) Interpret simple time-delay data for echoes or seismic waves..

Waves for detection and exploration (physics only) common mistake 1

Giving a vague answer instead of directly addressing: (Physics only) Apply wave speed reasoning to detection and exploration contexts..

Answer by clearly explaining how to (Physics only) Apply wave speed reasoning to detection and exploration contexts..