HIGHER TIER PHYSICS PAPER 2H REVIEW
PACK BUNDLED QUESTIONS AND
VERIFIED ANSWERS
●● elastic potential energy.
Answer: elastic potential energy = 1/2 x spring constant x extention2
●● gravitational potential energy.
Answer: gravitational potential energy = mass x gravitational field
strength x height
●● change in thermal energy.
Answer: change in thermal energy = mass x specific heat capacity x
change in temperature
●● power (work done).
Answer: power = work done / time
●● efficiency (energy).
Answer: efficiency = useful energy output / total energy input