A bungee jumper starts with 500 J in their GPE store. After they jump, they fall and are brought to a stop with the bungee cord. With the cord fully stretched what is the energy in the EPE store?

Choose 1 answer

500 J

0 J

250 J

125 J

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What is the elastic potential of an object with spring constant k = 10 N/m that has an extension of 0.5 m?

Choose 1 answer

1.25 J

2.5 J

5 J

10 J

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If the extension of a spring is doubled, what effect will this have on the elastic potential energy stored?

Drag the images into the correct place.

Correct Answer

Incorrect Answers

no change

double

quadruple

half

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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

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.