What is the maximum height reached for an object of mass 1 kg launched upwards at a speed of 20 m/s (g = 10 N/kg) ?

Choose 1 answer

10 m

20 m

40 m

5 m

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A ball dropped from a cliff has 100 J in its GPE store as it is released. What is the value of the KE store when it is halfway to the ground?

Choose 1 answer

50 J

10 J

100 J

0 J

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A ball dropped from a cliff has 100 J in its GPE store as it is released. What is the value of the KE store when it just reaches the ground?

Drag the images into the correct place.

Correct Answer

Incorrect Answers

50 J

10 J

100 J

0 J

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Fill in the blanks.

Select the missing words in the text.

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Which is the correct statement about closed systems?

Choose 1 answer

an object or group of objects that energy cannot leave or enter an object or group of objects that energy cannot leave or enter

a group of objects that energy cannot leave

all the objects in the universe

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Answer incorrect

Look at the slide below to work out the answer.