AQA Physics Paper 1 (Triple) - GCSE
What are the different types of energy stores? - Answers -Thermal, kinetic, gravitational
potential, elastic potential, chemical
What does the law of conservation of energy state? - Answers -Energy cannot be
created or destroyed, it simply changes form.
What causes an object to move? - Answers -When work is done and an unbalanced
force is acted upon an object
What is the same as work done? - Answers -Energy transferred
Equation for work done - Answers -Work done (J) = Force (N) x Distance (m)
W=Fs
What is work done to overcome friction transferred as? - Answers -Thermal energy
stores of the objects that rub together and to the surroundings by heating
What happens to the gravitational potential energy store of an object if it is lifted up or
down? - Answers -- If lifted up, GPE increases. This increase is equal to the work done
on it by the lifting force to overcome the gravitational force on the object.
- If lifted down, GPE decreases. This decrease is equal to the work done by the
gravitational force acting on it.
Equation for change in gravitational potential energy store - Answers -change of GPE
store (J)= mass (kg) x gravitational field strength (N/kg) x change of height (m)
What does the energy in the kinetic energy store of a moving object depend on? -
Answers -- Its mass
- Its speed
Equation for kinetic energy - Answers -KE (J) =1/2 x mass (kg) x velocity (m/s)^2
What is elastic potential energy? - Answers -Energy stored in an elastic object when
work is done on it to change its shape
Equation for elastic potential energy - Answers -Elastic potential energy (J) = 1/2 x
Spring Constant (N/m) x extension^2 (m)
Ee = 1/2Ke^2
Define Hooke's Law - Answers -- The extension of a spring is directly proportional to the
force applied, as long as the limit of proportionality
What are the different types of energy stores? - Answers -Thermal, kinetic, gravitational
potential, elastic potential, chemical
What does the law of conservation of energy state? - Answers -Energy cannot be
created or destroyed, it simply changes form.
What causes an object to move? - Answers -When work is done and an unbalanced
force is acted upon an object
What is the same as work done? - Answers -Energy transferred
Equation for work done - Answers -Work done (J) = Force (N) x Distance (m)
W=Fs
What is work done to overcome friction transferred as? - Answers -Thermal energy
stores of the objects that rub together and to the surroundings by heating
What happens to the gravitational potential energy store of an object if it is lifted up or
down? - Answers -- If lifted up, GPE increases. This increase is equal to the work done
on it by the lifting force to overcome the gravitational force on the object.
- If lifted down, GPE decreases. This decrease is equal to the work done by the
gravitational force acting on it.
Equation for change in gravitational potential energy store - Answers -change of GPE
store (J)= mass (kg) x gravitational field strength (N/kg) x change of height (m)
What does the energy in the kinetic energy store of a moving object depend on? -
Answers -- Its mass
- Its speed
Equation for kinetic energy - Answers -KE (J) =1/2 x mass (kg) x velocity (m/s)^2
What is elastic potential energy? - Answers -Energy stored in an elastic object when
work is done on it to change its shape
Equation for elastic potential energy - Answers -Elastic potential energy (J) = 1/2 x
Spring Constant (N/m) x extension^2 (m)
Ee = 1/2Ke^2
Define Hooke's Law - Answers -- The extension of a spring is directly proportional to the
force applied, as long as the limit of proportionality
