tan_shao_xun
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tan_shao_xun
Created by tan_shao_xun almost 9 years ago
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Test 1

Question 1 of 2

1

Which of the following describes how a ball moves as it is thrown upwards?

Select one of the following:

  • The ball slows down.

  • The ball speeds up.

  • The ball slows down as it reaches the top, then speeds up as it falls back to Earth.

  • The ball speeds up as it reaches the top, then slows down as it falls back to Earth.

Explanation

Question 2 of 2

1

How do you explain the motion of the ball in Q1?

Select one of the following:

  • The ball uses up its energy.

  • The force on the ball is used up.

  • Kinetic energy of the ball is converted to G.P.E then converted to kinetic energy again

  • G.P.E of the ball is converted to kinetic energy then converted to G.P.E again

Explanation

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