Energy Unit Quiz

A bright and educational illustration depicting various energy transfer methods, including conduction, convection, and radiation, with visual representations of heat transfer in different materials and environments.

Energy Unit Quiz

Test your knowledge on energy transfer and efficiency with our engaging quiz!

From understanding the different methods of heat transfer to calculating kinetic and potential energy, this quiz covers essential concepts in energy.

Multiple-choice questions
17 challenging questions
Perfect for students and teachers alike

17 Questions4 MinutesCreated by LearningLight247

A copper block is placed into an immersion heater. Energy is transferred through the copper block. What is the name of the process by which this energy is transferred?

Conduction

Convection

Radiation

A person buys an oven. The inside and outside surfaces of the oven are light coloured and shiny. Explain why.

Light, shiny surfaces are good insulators

Light, shiny surfaces are good reflectors

Light, shiny surfaces increase ultraviolet radiation

Heat is lost from our homes in many ways. How can we prevent this loss of heat?

Double glazed windows

Wall and loft insulation

Draught proofing

All of the above

We know how good an insulator is based on its 'u-value'. Does a good insulator have a high or a low u-value?

High u-value

Low u-value

Energy cannot be created or destroyed, it is transferred from one form to another. When a child goes down a slide, what is the energy transfer that is occurring?

Gravitational to chemical

Chemical to internal

Magnetic to kinetic

Gravitational to kinetic

Not all of an objects is transferred usefully. Some energy is wasted as it is transferred to the surroundings. When the child go does down the slide, some energy is wasted. What form is the wasted energy?

Chemical energy

Internal (heat) energy

Magnetic energy

Kinetic energy

Knowing the amount of useful and wasted energy of a system can allow you to calculate the efficiency of that system. What is the equation for efficiency?

Efficiency = Useful Energy Out/Total Energy In

Efficiency = Useful Energy Out/Wasted Energy

Efficiency = Wasted Energy/Total Energy In

Efficiency = Total Energy In/Useful Energy Out

Some energy sources are classed as non-renewable. Tick all non-renewable sources.

Nuclear fuel

Fossil fuels

Wind farms

Hydroelectric dams

Fossil fuels are bad for the environment as their use contributes to global warming. A better alternative is to use nuclear power stations for generating our electricity. Why?

It is a renewable source of energy

Does not produce any greenhouse gases

It is cheaper

An object of mass 10kg is moving at a speed of 5 m/s. How much kinetic energy does the object have?

12.5 J

1250 J

125 J

1000 J

An object of mass 10 kg is raised to a height of 50 m. How much gravitational potential energy does the object have? (g=9.8 N/kg)

49 J

4900 J

490 J

49000 J

A microwave has a power rating of 1200W. How many joules of energy is transferred if the microwave is used for 1 second on full power?

1 J

120 J

1200 J

12 J

The same microwave is used for 5 minutes to warm up a leftover meal. How much energy has been transferred by that same microwave?

360 J

360000 J

3600 J

36000 J

Using joules to calculate energy in this way means the numbers can get quite big. Energy suppliers like to use a different unit to make the numbers a bit easier to manage. This is called the kilowatt-hour (kWh). A washing machine has a power rating of 2000W, how much energy has it used if it completes a 1 hour cycle?

0.2 kWh

2 kWh

20 kWh

200 kWh

A family household receives their energy bill and they are told they have used 1234 kWh of energy in one month. If one unit costs 34p, how much was their monthly bill?

£41956.00

£4.19

£419.56

£41.96

Energy Unit Quiz

Energy Unit Quiz

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