Question 1

What is the measure of how well a material conducts heat?

Accepted Answer

thermal conductivity

Answer

thermal transfer

Answer

heat conduction

Answer

thermal efficiency

Question 2

Which type of materials have low thermal conductivity?

Accepted Answer

thermal insulators

Answer

non-metals

Answer

thermal conductors

Answer

metals

Question 3

Which of these is NOT one of the three factors that determine the rate of thermal energy transfer through a material?

Accepted Answer

starting temperature

Answer

thermal conductivity of material

Answer

thickness of material

Answer

temperature difference

Question 4

Which of these is NOT one of the three factors that affect the rate of heat loss from a building?

Accepted Answer

the type of heating used in the building

Answer

thickness of walls and roof

Answer

the temperature difference between the two sides of the wall/roof

Answer

thermal conductivity of walls and roof

Question 5

Define specific heat capacity.

Accepted Answer

amount of energy needed to raise the temperature of $	ext{1 kg}$ of a material by $1\degree 	ext C$

Answer

amount of energy needed to raise the temperature of $	ext{10 g}$ of a material by $10\degree 	ext C$

Answer

amount of energy needed to raise the temperature of $	ext{10 kg}$ of a material by $10\degree 	ext C$

Answer

amount of energy needed to raise the temperature of $	ext{1 g}$ of a material by $1\degree 	ext C$

Question 6

What is the name for the electromagnetic radiation that transfers heat?

Accepted Answer

infrared radiation

Answer

thermal radiation

Answer

ultraviolet radiation

Answer

microwave radiation

Question 7

What is the relationship between the temperature of an object and its emission of infrared radiation?

Accepted Answer

the higher the temperature of an object, the more infrared radiation it emits

Answer

the temperature of an object does not affect how much infrared radiation it emits

Answer

the lower the temperature of an object, the more infrared radiation it emits

Answer

the higher the temperature of an object, the less infrared radiation it emits

Question 8

What can you tell about an object that absorbs and emits infrared radiation at the same rate?

Accepted Answer

it is at a constant temperature

Answer

its temperature will be decreasing

Answer

it is a thermal conductor

Answer

its temperature will be increasing

Question 9

Compare the amount of infrared radiation emitted and absorbed by an object that is increasing in temperature.

Accepted Answer

more infrared radiation absorbed than emitted

Answer

less infrared radiation absorbed than emitted

Answer

more infrared radiation will be emitted than absorbed

Answer

equal amounts of infrared radiation absorbed and emitted

Question 10

What term is used to describe a theoretical object that absorbs 100% of the radiation that falls on it?

Accepted Answer

black body

Answer

full efficiency body

Answer

full absorption body

Answer

black mass

Question 11

Which of these is NOT a greenhouse gas?

Accepted Answer

nitrogen

Answer

water vapour

Answer

carbon dioxide

Answer

methane

Question 12

Which of these human activities do NOT increase the levels of greenhouse gases released?

Accepted Answer

using electric cars

Answer

deforestation

Answer

livestock farming

Answer

burning fossil fuels

Question 13

What do greenhouse gases do that increases the Earth's temperature?

Accepted Answer

they absorb the heat emitted from the Earth then re-emit this radiation back towards Earth’s surface

Answer

they generate infrared radiation which they emit towards the Earth's surface

Answer

they absorb radiation from the Sun then re-emit this radiation towards Earth’s surface

Answer

they absorb the heat from the Earth's surface and the Sun which makes the Earth hotter

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