Physics (5054)
Work, Energy & Power
LO
1 Coal-fired power stations provide electricity for homes and industry.
A government decides to replace a coal-fired power station with a hydroelectric power station.
Apart from cost, state two advantages of generating electricity using a hydroelectric power station
compared with using a coal-fired power station.
1................................................................................................................................................
2................................................................................................................................................ [2]
[Total: 2]
2 A baby has a mass of 8.0 kg The baby is carried from the ground floor to the bedroom. The vertical
height of the bedroom above the ground floor is 3.5 m.
Calculate the change in gravitational potential energy of the baby when it is carried from the ground
floor to the bedroom.
change in gravitational potential energy = ..................................................... [2]
[Total: 2]
3 Geothermal energy is one source of renewable energy.
State two other sources of renewable energy.
1. ..............................................................................................................................................
2................................................................................................................................................ [2]
[Total: 2]
, 2
4 The diagram shows an outline of the main parts of a geothermal power station used to generate
electricity. Some parts of the power station are labelled.
State the names of the parts of the power station labelled A and B.
part A .......................................................................................................................................
part B ....................................................................................................................................... [2]
[Total: 2]
Work, Energy & Power
LO
1 Coal-fired power stations provide electricity for homes and industry.
A government decides to replace a coal-fired power station with a hydroelectric power station.
Apart from cost, state two advantages of generating electricity using a hydroelectric power station
compared with using a coal-fired power station.
1................................................................................................................................................
2................................................................................................................................................ [2]
[Total: 2]
2 A baby has a mass of 8.0 kg The baby is carried from the ground floor to the bedroom. The vertical
height of the bedroom above the ground floor is 3.5 m.
Calculate the change in gravitational potential energy of the baby when it is carried from the ground
floor to the bedroom.
change in gravitational potential energy = ..................................................... [2]
[Total: 2]
3 Geothermal energy is one source of renewable energy.
State two other sources of renewable energy.
1. ..............................................................................................................................................
2................................................................................................................................................ [2]
[Total: 2]
, 2
4 The diagram shows an outline of the main parts of a geothermal power station used to generate
electricity. Some parts of the power station are labelled.
State the names of the parts of the power station labelled A and B.
part A .......................................................................................................................................
part B ....................................................................................................................................... [2]
[Total: 2]
