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2023 AQA A-level PHYSICS 7408/1 Paper 1
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2023 AQA A-level PHYSICS 7408/1 Paper 1 Energy Stores ANSWER1) Elastic potential 2) Gravitational potential 3) Thermal 4) Electrostatic 5) Nuclear 6) Chemical 7) Kinetic 8) Magnetic 9) Light 10) Sound How is energy transferred? ANSWER1) Mechanically - force doing work 2) Electrical...

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  • May 4, 2024
  • 83
  • 2023/2024
  • Exam (elaborations)
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  • 2023 aqa a level physics 74081 paper 1

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  • 2023 AQA A-level PHYSICS
  • 2023 AQA A-level PHYSICS

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2023 AQA
A-level
PHYSICS
7408/1
Paper 1

,Energy Stores ✔✔✔ANSWER➖1) Elastic potential
2) Gravitational potential
3) Thermal
4) Electrostatic
5) Nuclear
6) Chemical
7) Kinetic
8) Magnetic
9) Light
10) Sound


How is energy transferred? ✔✔✔ANSWER➖1)
Mechanically - force doing work
2) Electrically - work done by moving charges
3) Heating/Radiation - light, sound

,How can work be done? ✔✔✔ANSWER➖When a
current flows or by a force moving an object


Kinetic energy formula ✔✔✔ANSWER➖E=1/2mv²
Kinetic energy(J) = 0.5 x mass(kg) x speed²(m/s)


Gravitational potential energy formula
✔✔✔ANSWER➖E=mgh
G.P.E(J) = mass(kg) x gravitational field strength
(N/kg) x height (m)


What happens when an object falls and there's no air
resistance? ✔✔✔ANSWER➖Energy lost from the
g.p.e store = energy gained in the kinetic energy
store

, What does air resistance do when acting against
falling objects? ✔✔✔ANSWER➖It causes some
energy to be transferred to other energy stores e.g.
the thermal energy stores of the object and the
surroundings


Elastic potential energy formula
✔✔✔ANSWER➖E=1/2ke²
E.P.E(J) = 0.5 x spring constant(N/m) x
extension²(m)


What is SHC? ✔✔✔ANSWER➖The amount of
energy needed to raise the temperature of 1kg of a
substance by 1°C


SHC formula ✔✔✔ANSWER➖E=mcθ

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