WorksheetsWork done (W = F × s) | Exit Quiz | Oak National Academy
Total questions: 6
Worksheet time: 5mins
Which of these stores of energy does friction cause energy to transfer into?
chemical
gravitational
thermal
Which two statements describe what happens to energy when it dissipates?
The energy is used up, so there is none left.
The energy spreads out into the surroundings.
The energy is transferred into a thermal store.
The energy is transferred into a chemical store.
240 J of energy is transferred from a chemical store to both a gravitational store and a thermal store. If 80 J is transferred to the gravitational store, how much is transferred to the thermal store?
A maximum amount of 160 J.
Exactly 160 J.
A minimum amount of 160 J.
It is impossible to tell.
Match the energy values on the left to the equivalent values on the right.
45 kJ
45 000 J
4500 J
4.5 kJ
0.45 kJ
450 J
45 J
0.045 kJ
A force of 600 N is used to lift a box above the ground. An identical box is moved three times as high by the same size force. How much work was done lifting the second box compared to the first?
3× less
the same amount
3× more
Put the statements in order of increasing work done on identical boxes, starting with the least work done.
Moving a box 3 m with a force of 5 N.
Moving a box 2 m with a force of 8 N.
Moving a box 1 m with a force of 17 N.
Moving a box 1.5 m with a force of 12 N.
