Identify a significant risk in this experiment.

Drag the images into the correct place.

Correct Answer

Incorrect Answers

burns

hot water

cuts

broken glass

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Why is no insulation placed beneath the beaker in the experiments to investigate insulation?

Choose 1 answer

energy is not transferred through the base

to prevent the beaker falling over

to allow the water in the beaker to be heated while in the beaker

to reduce the amount of insulation needed

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How long would it take a 20 W motor to transfer 100 J of energy?

Choose 1 answer

5 s

50 s

0.2 s

0.02 s

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What is the independent variable?

Choose 1 answer

the variable you change

the variable you keep the same

the variable you measure

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Fill in the blanks.

Select the missing words in the text.

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Answer incorrect

Look at the slide below to work out the answer.