Which word describes the process of giving out radiation?
Emission
Absorption
Transmission
Which word describes the process of taking in radiation?
Which colour is the best absorber of radiation?
White
Black
Grey
Which colour is the worst absorber?
Which colour is the worst emitter?
When using a Leslie cube to investigate the amount of emission from a surface, why is the cube left for a minute after adding hot water?
As a safety measure to keep a distance in case the cube melts
So that heat convecting out the top only leaves radiation from the sides still to be detected
So that all surfaces can reach the same stable temperature
What happens to the temperature of a body that absorbs infrared radiation faster than it emits?
It decreases
It remains constant
It increases
What happens to the temperature of a body that absorbs and emits infrared radiation at the same rate?
Which of these statements is true about the greenhouse effect?
The greenhouse effect has always been present but human activity has increased it.
The greenhouse effect has occurred because of human activity and nothing else.
The greenhouse effect is not affected by human activity.
What gases in the atmosphere change the balance of infrared radiation absorbed and emitted by the Earth?
Ozone
Radon gas
Greenhouse gases