2805802
Beschreibung
Quiz von Alex Rizvi, aktualisiert more than 1 year ago
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Erstellt von Alex Rizvi
vor fast 9 Jahre
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Frage 1
Frage
When a ball is dropped from a height onto a loop the loop the energy transfer is Kinetic to GPE
Antworten
- True
- False
Frage 2
Frage
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?
Antworten
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16.7 Days
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63.7 Days
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28.3 Days
-
10.2 Days
Frage 3
Frage
A current of 2 A flows for 30 seconds through a lamp. How much charge has moved?
Antworten
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60 Coulombs
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60 Joules
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25 Coulombs
-
15 Watts
Frage 4
Frage
A current of 12 A flows for 20 minutes into an electric cooker. How much charge has the cooker used?
Antworten
-
14,400 Coulombs
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27 Coulombs
-
50 Coulombs
-
16,000 Coulombs
Frage 5
Frage
Watts are a measurement of energy
Antworten
- True
- False
Frage 6
Frage
Joules are a measurement of energy
Antworten
- True
- False
Frage 7
Frage
What is current measured in?
Antworten
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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
Frage 8
Frage
How is current measured?
Antworten
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Voltmeter
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Ammeter
Frage 9
Frage
What is the equation to work out power
Antworten
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P= V x I
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P= I/V
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P= V/I
Frage 10
Frage
Which Circuit do you connect an ammeter to measure the current?
Antworten
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Series
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Parallel
Frage 11
Frage
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?
Antworten
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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%
Frage 12
Frage
What is 1KW equivalent to?
Antworten
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10W
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100W
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1000W
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10000W
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1000000W
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