GCSE PHYSICS [AQA] - PAPER 1 EXAM
2025 QUESTIONS AND ANSWERS
[1.1]
What can never happen to energy? - ANS Energy can never be created or destroyed.
[1.1]
Name the 8 types of energy store. - ANS Energy can be stored as:
- Thermal
- Chemical
- Kinetic
- Magnetic
- Elastic potential
- Electrostatic
- Nuclear
- Gravitational potential
[1.1]
What is a system? - ANS A system is an object or group of objects where energy is
transferred between them.
[1.1]
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,Give the 2 types of system and their properties. - ANS Systems can either be open or closed,
where an open allows energy and matter to enter and leave, while a closed does not.
[1.1]
What is another common term for energy transferred? - ANS Energy transferred can also be
described as work done.
[1.2]
Give the formula for kinetic energy. - ANS Eₖ = ¹/₂mv²
Energy = ¹/₂ x Mass x Velocity²
[1.3]
Give the formula for gravitational potential energy. - ANS Eₚ = mgh
Energy = Mass x Gravitational Strength x Height
[1.4]
Define internal energy. - ANS Internal energy is the total energy stored in the particles of a
system.
[1.4]
What are the 2 types of internal energy? - ANS Internal energy can either be potential
energy, or kinetic energy.
[1.4]
Define temperature. - ANS Temperature is a measure of the average internal energy within a
substance.
[1.4]
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, What is specific heat capacity? - ANS Specific heat capacity is the amount of energy required
to raise the temperature of 1kg of a substance by 1°C.
[1.4]
Give the formula for specific heat capacity. - ANS △E = mc△0
Energy change = Mass x Specific heat capacity x Temperature change
[1.6]
How does temperature spread in solids, fluids and empty space? - ANS Temperature spreads
in multiple ways:
- Solids - Conduction, vibrating particles pass energy
- Fluids - Convection, particles collide and spread energy
- Empty space - Radiation, waves carry energy
[1.7]
Give the 2 most common ways to reduce unwanted energy transfers. - ANS Unwanted
energy transfers are most commonly reduced through thermal insulation or lubrication.
[1.8]
Define power. - ANS Power is the rate at which energy is transferred.
[1.8]
Give the formula for power. - ANS P=e/t
Power = Energy / Time
[1.9]
What is efficiency? - ANS Efficiency is a measure of how effectively energy is transferred.
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 3
2025 QUESTIONS AND ANSWERS
[1.1]
What can never happen to energy? - ANS Energy can never be created or destroyed.
[1.1]
Name the 8 types of energy store. - ANS Energy can be stored as:
- Thermal
- Chemical
- Kinetic
- Magnetic
- Elastic potential
- Electrostatic
- Nuclear
- Gravitational potential
[1.1]
What is a system? - ANS A system is an object or group of objects where energy is
transferred between them.
[1.1]
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
,Give the 2 types of system and their properties. - ANS Systems can either be open or closed,
where an open allows energy and matter to enter and leave, while a closed does not.
[1.1]
What is another common term for energy transferred? - ANS Energy transferred can also be
described as work done.
[1.2]
Give the formula for kinetic energy. - ANS Eₖ = ¹/₂mv²
Energy = ¹/₂ x Mass x Velocity²
[1.3]
Give the formula for gravitational potential energy. - ANS Eₚ = mgh
Energy = Mass x Gravitational Strength x Height
[1.4]
Define internal energy. - ANS Internal energy is the total energy stored in the particles of a
system.
[1.4]
What are the 2 types of internal energy? - ANS Internal energy can either be potential
energy, or kinetic energy.
[1.4]
Define temperature. - ANS Temperature is a measure of the average internal energy within a
substance.
[1.4]
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
, What is specific heat capacity? - ANS Specific heat capacity is the amount of energy required
to raise the temperature of 1kg of a substance by 1°C.
[1.4]
Give the formula for specific heat capacity. - ANS △E = mc△0
Energy change = Mass x Specific heat capacity x Temperature change
[1.6]
How does temperature spread in solids, fluids and empty space? - ANS Temperature spreads
in multiple ways:
- Solids - Conduction, vibrating particles pass energy
- Fluids - Convection, particles collide and spread energy
- Empty space - Radiation, waves carry energy
[1.7]
Give the 2 most common ways to reduce unwanted energy transfers. - ANS Unwanted
energy transfers are most commonly reduced through thermal insulation or lubrication.
[1.8]
Define power. - ANS Power is the rate at which energy is transferred.
[1.8]
Give the formula for power. - ANS P=e/t
Power = Energy / Time
[1.9]
What is efficiency? - ANS Efficiency is a measure of how effectively energy is transferred.
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