4290112
Descrição
Quiz por tan_shao_xun, atualizado more than 1 year ago
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Criado por tan_shao_xun
mais de 8 anos atrás
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Questão 1
Questão
Which of the following describes how a ball moves as it is thrown upwards?
Responda
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The ball slows down.
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The ball speeds up.
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The ball slows down as it reaches the top, then speeds up as it falls back to Earth.
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The ball speeds up as it reaches the top, then slows down as it falls back to Earth.
Questão 2
Questão
How do you explain the motion of the ball in Q1?
Responda
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The ball uses up its energy.
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The force on the ball is used up.
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Kinetic energy of the ball is converted to G.P.E then converted to kinetic energy again
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G.P.E of the ball is converted to kinetic energy then converted to G.P.E again
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