AQA GCSE PHYSICS ENERGY EXAMPREP
UPDATED COMPLETE QUESTIONS AND
VERIFIED SOLUTIONS
●● Energy stores x8
Answer: Thermal, kinetic,gravitational potential, elastic potential,
chemical, magnetic, electrostatic, nuclear
●● How is energy transferred? x3
Answer: mechanically, electrically, by heating/radiation
●● Energy transferred mechanically
Answer: by a force doing work
●● Energy transferred electrically
Answer: work done by moving charges
●● Energy transferred through heating/radiation e.g.
Answer: light, sound
●● System
Answer: a group of objects you are interested in
, ●● What happens when a system changes?
Answer: energy is transferred into/away from system, between different
objects, between different energy store types
●● Closed systems
Answer: matter/air cannot enter/leave system, net change in closed
systems total energy is always 0
●● E.g. of energy being transferred by heating
Answer: boiling water in a kettle
●● Work done
Answer: energy transferred, work is done when current flows (against
the resistance in a circuit) / by a force moving an object
●● Which store does energy go to from movement? What does the
energy depend on?
Answer: kinetic, depends on objects mass and speed
●● Kinetic energy formula
Answer:
UPDATED COMPLETE QUESTIONS AND
VERIFIED SOLUTIONS
●● Energy stores x8
Answer: Thermal, kinetic,gravitational potential, elastic potential,
chemical, magnetic, electrostatic, nuclear
●● How is energy transferred? x3
Answer: mechanically, electrically, by heating/radiation
●● Energy transferred mechanically
Answer: by a force doing work
●● Energy transferred electrically
Answer: work done by moving charges
●● Energy transferred through heating/radiation e.g.
Answer: light, sound
●● System
Answer: a group of objects you are interested in
, ●● What happens when a system changes?
Answer: energy is transferred into/away from system, between different
objects, between different energy store types
●● Closed systems
Answer: matter/air cannot enter/leave system, net change in closed
systems total energy is always 0
●● E.g. of energy being transferred by heating
Answer: boiling water in a kettle
●● Work done
Answer: energy transferred, work is done when current flows (against
the resistance in a circuit) / by a force moving an object
●● Which store does energy go to from movement? What does the
energy depend on?
Answer: kinetic, depends on objects mass and speed
●● Kinetic energy formula
Answer: