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Matter
Revision and exam practice for Matter.
22
Objectives
10
Flashcards
10
Questions
90 min
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OcrGcsePhysics A GatewayMatter
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22 objective pages available
Evolution of the Atomic Model1 objectives
- Communicate the key features of the way and why the atomic model has changed over time.
The Structure of an Atom1 objectives
- Communicate the key features of the atom as a positively charged nucleus surrounded by negatively charged electrons, with the nuclear radius much smaller than that of the atom and with almost all of the mass in the nucleus.
The Tiny World of Atoms and Molecules1 objectives
- Retrieve and apply knowledge of the typical size (order of magnitude) of atoms and small molecules.
Understanding Density1 objectives
- Develop knowledge and skill in density.
Density and States of Matter1 objectives
- Account for the differences in density between the different states of matter in terms of the arrangements of the atoms and molecules.
Understanding the Relationship between Density, Mass, and Volume with Conservation of Mass1 objectives
- Use knowledge of the relationship between density, mass and volume to changes where mass is conserved.
Conservation of Mass During Changes of State1 objectives
- Communicate the key features of the way mass is conserved when substances melt, freeze, evaporate, condense or sublimate.
Physical versus Chemical Changes: Reversibility and Property Recovery1 objectives
- Communicate the key features of physical changes differ from chemical changes because the material recovers its original properties if the change is reversed.
Energy Changes During Heating and Changes of State1 objectives
- Communicate the key features of the way heating a system will change the energy stored within the system and raise its temperature or produce changes of state.
Specific Heat Capacity vs. Specific Latent Heat1 objectives
- Develop knowledge and skill in the term specific heat capacity and distinguish between it and the term specific latent heat.
Understanding Internal Energy Change (Heat Energy)1 objectives
- Use knowledge of the relationship between change in internal energy of a material and its mass, specific heat capacity and temperature change to calculate the energy change involved.
Energy Changes During Changes of State1 objectives
- Use knowledge of the relationship between specific latent heat and mass to calculate the energy change involved in a change of state.
Molecular Motion in Gases: Temperature and Pressure1 objectives
- Account for the way the motion of the molecules in a gas is related both to its temperature and its pressure.
Understanding the Relationship Between Gas Temperature and Pressure (Constant Volume)1 objectives
- Account for the relationship between the temperature of a gas and its pressure at constant volume (qualitative only).
Pressure, Gases, and Forces1 objectives
- Retrieve and apply knowledge of gases can be compressed or expanded by pressure changes and that the pressure produces a net force at right angles to any surface.
Gas Pressure and Volume Relationship1 objectives
- Account for the way increasing the volume in which a gas is contained, at constant temperature can lead to a decrease in pressure.
Higher: How Doing Work on a Gas Increases Its Temperature1 objectives
- Account for the way doing work on a gas can increase its temperature.
Understanding Earth's Atmosphere and Atmospheric Pressure1 objectives
- Communicate the key features of a simple model of the Earth’s atmosphere and of atmospheric pressure.
Understanding Atmospheric Pressure Variation with Height1 objectives
- Account for why atmospheric pressure varies with height above the surface of the planet.
Understanding Floating and Sinking (Higher Tier)1 objectives
- Communicate the key features of the factors which influence floating and sinking.
Pressure in Liquids and Upthrust1 objectives
- Account for why pressure in a liquid varies with depth and density and how this leads to an upwards force on a partially submerged object.
Understanding Pressure Differences in Liquids (Higher Tier)1 objectives
- Work out the differences in pressure at different depths in a liquid.
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Practice preview
- Unofficial practice material Describe a simple model of the Earth's atmosphere and explain how atmospheric pressure changes with altitude. [4 marks]
- Pressure is defined as force per unit area. How does an increase in volume at constant temperature affect the 'force' part of this definition when considering gas particles?
- A substance has a density of 10 g/cm³. If you have 20 cm³ of this substance, what would be its mass?
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