Pearson Edexcel International GCSE in Physics · 4PH1 · Free · no account needed
Energy Stores and Transfers — exam questions
10 original Incandio exam-style questions on Energy Stores and Transfers, 20 marks, about 20 minutes of writing. Each one carries the command word, the tariff and the specification statement it assesses, exactly as a paper presents them. This is an original Incandio practice question, written to reflect the structure and demands of the qualification. It is not an official Pearson Edexcel past-paper question.
This is the practice set for Energy Stores and Transfers — the lesson that teaches it. Read the lesson first if the idea is new; come here when you want to find out whether you can turn it into marks. Completely free, no account needed to read.
What these questions ask of you
8 command words run through this set, and on Pearson Edexcel International GCSE Physics each one means something precise. Answering the wrong command is the commonest way a candidate who understands the lesson still loses the mark.
- Which (1 mark)
- one option chosen from the set given
- Name (1 mark)
- the correct quantity, unit or component
- State (1 mark)
- one precise fact or definition
- Give (1–2 marks)
- a short factual answer
- Describe (2–4 marks)
- developed, linked statements of what happens — including a named direction where one exists
- Calculate (1–5 marks)
- select the equation, substitute, evaluate — and state the unit Misread as: giving a bare number with no equation and no unit
- Explain (2–4 marks)
- the physics that causes it, set out as a line of reasoning Misread as: describing the change without giving the physical reason for it
- Determine (1–4 marks)
- a value obtained by combining a reading or gradient with a relationship
Assessed on Paper 1 (4PH1/1P) and Paper 2 (4PH1/2P), against AO1, AO2, AO3.
Where these sit in the specification
Pearson Edexcel International GCSE Physics (4PH1) — statements 4.1 · 4.2 · 4.3. Incandio is aligned to this specification; it is not published by, endorsed by or affiliated with Pearson, and it reproduces none of Pearson's wording.
The 10 questions
Answer them on paper, then open the lesson's exam practice to have them marked. The mark scheme, the accepted and rejected answers and the annotated model answer are in Incandio and are not printed here — an answer beside its question is not practice.
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A child of mass 30 kg climbs to the top of a playground slide and slides to the bottom. A physics class fitted the slide with sensors and worked out how much energy the child had at three points on the way down.
Table 1 — the class's measurements for one descent Point on the slide Energy in the gravitational store / J Energy in the kinetic store / J At the top, stationary 750 0 Halfway down 375 310 At the bottom 0 620 (a)
(1)Give
Give the energy in the child's kinetic store halfway down the slide, using Table 1.
A child of mass 30 kg climbs to the top of a playground slide and slides to the bottom. A physics class fitted the slide with sensors and worked out how much energy the child had at three points on the way down.
Table 1 — the class's measurements for one descent Point on the slide Energy in the gravitational store / J Energy in the kinetic store / J At the top, stationary 750 0 Halfway down 375 310 At the bottom 0 620 energy = ............................ J
(b)
(2)Determine
Determine the energy dissipated by friction over the whole descent, using Table 1.
A child of mass 30 kg climbs to the top of a playground slide and slides to the bottom. A physics class fitted the slide with sensors and worked out how much energy the child had at three points on the way down.
Table 1 — the class's measurements for one descent Point on the slide Energy in the gravitational store / J Energy in the kinetic store / J At the top, stationary 750 0 Halfway down 375 310 At the bottom 0 620 ............................ J
(c)
(3)Explain
Explain how Table 1 is consistent with the principle of conservation of energy.
A child of mass 30 kg climbs to the top of a playground slide and slides to the bottom. A physics class fitted the slide with sensors and worked out how much energy the child had at three points on the way down.
Table 1 — the class's measurements for one descent Point on the slide Energy in the gravitational store / J Energy in the kinetic store / J At the top, stationary 750 0 Halfway down 375 310 At the bottom 0 620 (Total for Question 1 = 6 marks)
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(1)Which
Which row gives the correct unit of energy?
Unit A newton B watt C joule D pascal (Total for Question 2 = 1 mark)
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(1)Name
Name the energy store that is filled when a spring is stretched.
(Total for Question 3 = 1 mark)
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(1)State
State the principle of conservation of energy.
(Total for Question 4 = 1 mark)
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(2)Give
Give two ways in which energy can be transferred from one store to another.
(Total for Question 5 = 2 marks)
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(4)Describe
A rubber ball is dropped onto a hard floor and bounces back to a lower height. Describe the energy transfers that take place.
(Total for Question 6 = 4 marks)
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(2)Calculate
An electric drill is supplied with 4500 J of energy and transfers 1200 J usefully. Calculate the energy dissipated to the surroundings.
............................ J
(Total for Question 7 = 2 marks)
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(3)Explain
Explain why the wheel would not keep turning for ever.
A claimed perpetual motion machine — An inventor exhibits a wheel with weights on hinged arms, arranged so that the weights on one side always swing further from the axle than those on the other. He claims that once started the wheel will turn for ever with nothing supplied to it, and that it could even be used to drive a generator.
(Total for Question 8 = 3 marks)
Have them marked, then defend the answer
Practice tells you the mark; teaching it back tells you whether you understand it. On Incandio a topic counts as mastered only once you have taught it and defended it.
- Mark these questions — 10 questions, marked on Incandio against the authored scheme, with the mistake you actually made named.
- Teach it — explain Energy Stores and Transfers to Ember, an AI pupil who does not have it yet and asks the awkward question.
- Defend it — argue it against Hermann von Helmholtz over three rounds, marked against descriptors you can read first.
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Back to the lesson
- Energy Stores and Transfers — Where energy sits, how it moves, and why it is never used up however much it feels like it.
- All of Incandio Physics · Incandio Exam Practice