Question

A stretched rubber band when released regains its original length
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Answer 1

Answer:

Shoot a rubber band by hooking it on the front edge of the ruler, then stretching it back to 10 centimeters (cm) on the ruler and letting the rubber band go. Remember the angle and height at which you hold the ruler because you will need to keep it the same for each rubber band launch.

Answer 2

1) When we stretch the rubber band we give energy to it.

2) This energy is which is stored in it.

3) Hence, when we release it, it regains it's original length.