Which of the following choices correctly explains how the gases lead to global warming?

They absorb radiation from the Earth and re-emit it in all directions.

What causes the convection currents above a warm surface?

The warm air expands, becomes less dense and rises.

Which of the following is not an advantage of nuclear power when compared to fossil fuel?

Nuclear power plants use renewable fuel.

Which of the following is an advantage of wind turbines, when compared to nuclear power plants?

Wind turbines produce no significant pollution.

Which statement is consistent with the chart showing the electromagnetic waves absorption of the Earth’s atmosphere?

Most of the infrared radiated from Earth is absorbed by the atmosphere.

Which of the following options gives the correct sequence of energy transfers in a hydroelectric power plant?

Gravitational potential energy, kinetic energy, electrical energy

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IB DP Physics: Energy production

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Aligned to the IB Diploma Programme. Suitable for ages 16-19. Test your knowledge on Energy Production. #IB #Physics #science

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Questions 10

Answers

1
Which of the following choices correctly explains how the gases lead to global warming?
They absorb radiation from the Sun and re-emit it in all directions.
They absorb radiation from the Earth and re-emit it in all directions.
They reflect radiation from the Earth.
They reflect incoming radiation from the Sun.
2
What causes the convection currents above a warm surface?
The warm air expands, becomes less dense and rises.
The warm air expands, becomes less dense and sinks.
The warm air expands, becomes more dense and sinks.
The warm air expands, becomes more dense and rises.
3
Which of the following is not an advantage of nuclear power when compared to fossil fuel?
Nuclear power plants use renewable fuel.
The nuclear fuel has a higher specific energy than fossil fuels.
Nuclear power plants do not produce greenhouse gases.
Nuclear power plants can be used as ‘baseline’ power generation.
4
A flask that holds hot drinks has a shiny, metallic surface on the inside in order to minimise heat loss from ________ .
convection
conduction
conduction and convection
radiation
5
True or False? In present-day nuclear reactors, fusion reactions take place.
False
True
6
Which of the following is an advantage of wind turbines, when compared to nuclear power plants?
Wind turbines have a relatively constant power output.
Wind turbines can be reliably used as ‘baseline’ power generation.
Wind turbines do not produce greenhouse gases.
Wind turbines produce no significant pollution.
7
Which of the following has the highest contribution to increasing the Earth's albedo?
Desert
Ocean
Forest
Snow
8
Which of the following energy sources does not originate from the Sun?
Geothermal energy
Solar power
Fossil fuels
Wind power
9
Which statement is consistent with the chart showing the electromagnetic waves absorption of the Earth’s atmosphere?
Most of the visible light from the Sun is absorbed by the atmosphere.
Most of the ultraviolet from the Sun is transmitted by the atmosphere.
Most of the infrared radiated from Earth is absorbed by the atmosphere.
Most of the visible light radiated from Earth is absorbed by the atmosphere
10
Which of the following options gives the correct sequence of energy transfers in a hydroelectric power plant?
Gravitational potential energy, thermal energy, electrical energy
Gravitational potential energy, kinetic energy, electrical energy
Kinetic energy, gravitational potential energy, electrical energy
Thermal energy, gravitational potential energy, electrical energy

IB DP Physics: Energy production Flashcards | StudBud