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Senior High School: 11th and 12th Grade
Physics
Energy - Heating And Insulating
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Q.1
Calculate the specific heat capacity of a material whose mass is 1 kg which required 300 J of energy in order to be heated from 1 C to 5 C.
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25 J kg-1 oC-1
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50 J kg-1 oC-1
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75 J kg-1 oC-1
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100 J kg-1 oC-1
Q.2
If a wall has a high U-value, will it allow more or less heat to flow through it than a wall with a low U-value?
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The same
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Less
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More
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Impossible to tell
Q.3
What is specific heat capacity?
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The amount of energy required to change the temperature of 10 g of a substance by 1oC
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The amount of energy required to change the temperature of 1 g of a substance by 1oC
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The amount of energy required to change the temperature of 1 g of a substance by 1 K
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The amount of energy required to change the temperature of 1 kg of a substance by 1oC
Q.4
A solar panel that contains water which is heated by radiation from the sun can be used for what purposes?
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Heat building
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Heat domestic water supply
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The heat cannot be transferred
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Heat both building and domestic water supply
Q.5
How much energy is required to heat a block of material of mass 4 kg by 10 C whose specific heat capacity is 800 J kg C ?
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3,200 J
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32,000 J
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16,000 J
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1,600 J
Q.6
What do U-Values measure?
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How effective a material is as a conductor of heat
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How effective a material is as an insulator
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How effective a material is at conducting electricity
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How effective a material is as at absorbing carbon dioxide
Q.7
What was the change in temperature of a material with a specific heat capacity of 1,000 J kg C , a mass of 2 kg which absorbed 500 joules of energy?
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0.25oC
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0.5oC
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1oC
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2.5oC
Q.8
Which of the following formulas is used to calculate specific heat capacity?
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E = m x c x Θ
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E = (m x c)⁄Θ
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E = m x Θ
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E = c x Θ
Q.9
If a material is a good insulator, what size U-Value will it have?
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Small
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Large
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Neither large nor small
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A negative value
Q.10
What are the units of specific heat capacity?
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J kg oC
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Kg⁄JoC
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J kgs⁄oC
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J kg-1 oC-1
0 h : 0 m : 1 s
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