451062
Description
Quiz by alex.examtime9373, updated more than 1 year ago
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Created by alex.examtime9373
over 10 years ago
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Question 1
Question
What is the definition of work?
Answer
-
Force x acceleration
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Force x displacement
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Mass x acceleration
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Mass x displacement
Question 2
Question
If a person pushes a car for a distance of 15m with a force of 500 N. What is the work done by this person?
Answer
-
7,500 J
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750 J
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33.33 J
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333 J
Question 3
Question
Energy is the ability to do work.
Answer
- True
- False
Question 4
Question
The formula for kinetic energy is E = mgh
Answer
- True
- False
Question 5
Question
When you take a lift from the ground floor to the first floor, what type of energy have you gained?
Answer
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Kinetic
-
Potential
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Thermal
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Nuclear
Question 6
Question
I Joule is equal to which of the following?
Answer
-
1 N/m
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1 N m
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1 m/N
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1 N/s
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1 m s
Question 7
Question
What energy conversion takes place in a standard filament bulb?
Answer
-
Light --> electrical --> heat
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Heat --> kinetic --> light
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Electrical --> heat --> light
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Potential --> light
Question 8
Question
What energy conversion takes place in muscle cells?
Answer
-
Potential --> kinetic
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Kinetic --> chemical
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Chemical --> potential
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Chemical --> kinetic
Question 9
Question
What is the formula for power?
Answer
-
Work/ time
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Work x time
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Work x distance
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Work/ speed
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