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

In a hydroelectric power station, water from a reservoir falls down a long pipe before entering the turbines. The turbines then turn the generator. What is the overall energy conversion?

5054_s06_qp_1

MCQ

2006

Paper 1, Variant 0

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The diagram shows a battery-operated motor lifting a block of wood at constant speed. + – battery motor pulley wood What is the overall energy change taking place?

5054_s07_qp_1

MCQ

2007

Paper 1, Variant 0

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A ball is held at rest on one side of a curved track. starting point stopping point The ball is released. It rolls down one side of the track and part of the way up the other side. It then stops, before rolling back down again. The height of the stopping point is less than that of the starting point. What is the sequence of energy changes between starting and stopping for the first time?

5054_s08_qp_1

MCQ

2008

Paper 1, Variant 0

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A parachutist has opened his parachute and is falling to Earth at constant speed. What is the principal energy conversion taking place as he falls?

5054_s10_qp_11

MCQ

2010

Paper 1, Variant 1

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A parachutist has opened his parachute and is falling to Earth at constant speed. What is the principal energy conversion taking place as he falls?

5054_s10_qp_12

MCQ

2010

Paper 1, Variant 2

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The diagram represents parts of a power station. coal-fired boiler turbine electricity generator What is the order of the energy changes taking place?

5054_s11_qp_11

MCQ

2011

Paper 1, Variant 1

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The diagram represents parts of a power station. coal-fired boiler turbine electricity generator What is the order of the energy changes taking place?

5054_s11_qp_12

MCQ

2011

Paper 1, Variant 2

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A ball is held at rest on one side of a curved track. starting point stopping point The ball is released. It rolls down one side of the track and part of the way up the other side. It then stops, before rolling back down again. The height of the stopping point is less than that of the starting point. What is the sequence of energy changes between starting and stopping for the first time?

5054_s12_qp_11

MCQ

2012

Paper 1, Variant 1

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A swimmer dives into a very deep pool at high speed. He slows down as he moves towards the bottom of the pool. What is the overall energy transformation as the diver moves downwards through the water?

5054_s13_qp_12

MCQ

2013

Paper 1, Variant 2

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Which energy source is non-renewable?

5054_s17_qp_12

MCQ

2017

Paper 1, Variant 2

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Questions Discovered

238