2805802
Description
Quiz by Alex Rizvi, updated more than 1 year ago
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Created by Alex Rizvi
almost 9 years ago
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Question 1
Question
When a ball is dropped from a height onto a loop the loop the energy transfer is Kinetic to GPE
Answer
- True
- False
Question 2
Question
Mrs Smith Would like to fit draught proofing into her house for a fee of £150. This will save 6000w of power for heating every two hours. Each unit cost 5p, What is the Payback time of the draught proofing?
Answer
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16.7 Days
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63.7 Days
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28.3 Days
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10.2 Days
Question 3
Question
A current of 2 A flows for 30 seconds through a lamp. How much charge has moved?
Answer
-
60 Coulombs
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60 Joules
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25 Coulombs
-
15 Watts
Question 4
Question
A current of 12 A flows for 20 minutes into an electric cooker. How much charge has the cooker used?
Answer
-
14,400 Coulombs
-
27 Coulombs
-
50 Coulombs
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16,000 Coulombs
Question 5
Question
Watts are a measurement of energy
Answer
- True
- False
Question 6
Question
Joules are a measurement of energy
Answer
- True
- False
Question 7
Question
What is current measured in?
Answer
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Coulombs
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Joules
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Watts
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Volts
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Amps
Question 8
Question
How is current measured?
Answer
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Voltmeter
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Ammeter
Question 9
Question
What is the equation to work out power
Answer
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P= V x I
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P= I/V
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P= V/I
Question 10
Question
Which Circuit do you connect an ammeter to measure the current?
Answer
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Series
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Parallel
Question 11
Question
A Petrol car requires 5,000J of energy to run properly. 3,467J of that are wasted as Heat(Thermal) energy. How much usefule energy is there, What type of energy, and what is the efficiency of the car?
Answer
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1,533J ,Thermal, 32.98%
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1235J, Electrical, 30.66%
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1533J, Kinetic, 30.66%
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1435J, Kinetic, 54.983%
Question 12
Question
What is 1KW equivalent to?
Answer
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10W
-
100W
-
1000W
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10000W
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1000000W
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