Energy Transfers In A System (GCSE Physics)

Which of the following correctly gives the work done W when a constant force F moves an object a distance s in the direction of the force?

Which equation links energy transferred by heating (?E), mass (m), specific heat capacity (c) and temperature change (?T)?

For the pumped-water method with 25% of stored energy wasted, what useful energy (in kJ) remains from 490 kJ?

If 40% of the energy stored in the water is wasted, what is the useful energy (in kJ) from 33 600 kJ?

Two identical bungee cords, each with spring constant 735 N/m and each extended by 8.0 m, store energy which lifts a 240 kg pod. What maximum height (m) will the pod reach? (g = 9.8 N/kg)

When a moving car brakes, which energy store increases in the brakes?

Which equation links power P, potential difference V and current I?

Which equation links energy (E), power (P) and time (t)?

Which equation links efficiency, useful energy output and total energy input?

Which energy store increases when water is pumped uphill into a reservoir?

Which energy store increases when water is heated?