2805802
Descrição
Quiz por Alex Rizvi, atualizado more than 1 year ago
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Criado por Alex Rizvi
quase 9 anos atrás
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Questão 1
Questão
When a ball is dropped from a height onto a loop the loop the energy transfer is Kinetic to GPE
Responda
- True
- False
Questão 2
Questão
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?
Responda
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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
Questão 3
Questão
A current of 2 A flows for 30 seconds through a lamp. How much charge has moved?
Responda
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60 Coulombs
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60 Joules
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25 Coulombs
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15 Watts
Questão 4
Questão
A current of 12 A flows for 20 minutes into an electric cooker. How much charge has the cooker used?
Responda
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14,400 Coulombs
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27 Coulombs
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50 Coulombs
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16,000 Coulombs
Questão 5
Questão
Watts are a measurement of energy
Responda
- True
- False
Questão 6
Questão
Joules are a measurement of energy
Responda
- True
- False
Questão 7
Questão
What is current measured in?
Responda
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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
Questão 8
Questão
How is current measured?
Responda
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Voltmeter
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Ammeter
Questão 9
Questão
What is the equation to work out power
Responda
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P= V x I
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P= I/V
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P= V/I
Questão 10
Questão
Which Circuit do you connect an ammeter to measure the current?
Responda
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Series
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Parallel
Questão 11
Questão
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?
Responda
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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%
Questão 12
Questão
What is 1KW equivalent to?
Responda
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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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