Subsection 1.7. Energy, work and power for Physics, O Level - revisedeck

1.7. Energy, work and power

A subsection of Physics, 5054, through 1. Motion, forces and energy

Listing 10 of 238 questions

A tennis ball of mass 56 g is travelling at 1500 metres / minute. Which expression is equal to the kinetic energy, in joules, of the tennis ball?

5054_w17_qp_12

MCQ

2017

Paper 1, Variant 2

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A tennis ball is compressed. Work is done and energy is transferred to the molecules of air inside the ball, and also to the rubber from which the ball is made. Which row is correct?

5054_w18_qp_12

MCQ

2018

Paper 1, Variant 2

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The diagram represents a geothermal power station. cold water steam and hot water Which useful energy transformation is taking place?

5054_w18_qp_12

MCQ

2018

Paper 1, Variant 2

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There is a current in a resistor. Which energy transfer takes place?

5054_w20_qp_11

MCQ

2020

Paper 1, Variant 1

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A ball is dropped from a height as shown...

5054_w20_qp_11

MCQ

2020

Paper 1, Variant 1

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A block of aluminium is heated. What happens to the kinetic energy and to the potential energy of the molecules?

5054_w20_qp_11

MCQ

2020

Paper 1, Variant 1

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A ball is dropped from a height as shown...

5054_w20_qp_12

MCQ

2020

Paper 1, Variant 2

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What changes kinetic energy into electrical energy?

5054_w20_qp_12

MCQ

2020

Paper 1, Variant 2

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Electric motors have an efficiency of about 90% when used in an electric train. Which forms of wasted energy are produced?

5054_w22_qp_12

MCQ

2022

Paper 1, Variant 2

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Which device is used to convert electrical energy to kinetic energy?

5054_w22_qp_12

MCQ

2022

Paper 1, Variant 2

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Questions Discovered

238