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P1 Energy

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Last updated 4 months ago
40 questions
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Question 2
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Question 5
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Question 39
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Question 40
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Question 6
6.

If 100 J is input and 30 J is useful, what is energy loss?
70 J
100 J
30 J
60 J
With 200 J input and 50 J useful, what is energy loss?
100 J
150 J
50 J
200 J
If 250 J input gives 75 J useful, what is the waste?
100 J
175 J
75 J
250 J
Input energy of 400 J, and output energy is 150 J, loss?
300 J
250 J
400 J
150 J
With 500 J input and 200 J useful, energy loss is?
200 J
150 J
500 J
300 J
If 600 J input produces 180 J useful, energy lost?
180 J
300 J
420 J
600 J
Input of 350 J, useful output 100 J, what’s lost?
350 J
200 J
100 J
250 J
With 800 J input and 350 J useful, energy loss is?
350 J
450 J
800 J
300 J
If you have 900 J input and 400 J useful, loss?
300 J
400 J
900 J
500 J
If the input energy is 100 J and useful energy is 30 J, what is the efficiency?
100%
30 J
70%
30%
Input energy is 200 J, and useful energy is 50 J. What is the efficiency?
75%
50%
200 J
25%
An engine has 120 J input energy and 60 J useful work. Calculate the efficiency.
120 J
50%
60%
25%
If the input energy is 150 J and the useful energy is 120 J, what efficiency does it have?
80%
120 J
20%
150%
With an input energy of 80 J and useful energy of 20 J, find the efficiency.
50%
80%
25%
20%
For 300 J input and 240 J useful energy, what's the efficiency?
20%
80%
300 J
240%
A device uses 400 J input energy and outputs 100 J usable energy. What is the efficiency?
100%
75%
25%
400%
Calculate efficiency for 60 J input energy with 15 J useful energy.
25%
60%
40%
15 J
Input energy is 500 J with useful energy as 250 J. What's the efficiency?
50%
25%
250%
500 J
An appliance uses 1000 J input and provides 500 J useful energy. Find the efficiency.
25%
100%
50%
500%
Of the objects shown, which one(s) do not have energy in their kinetic energy stores?
A
B
C
D