4290112
Descripción
Test por tan_shao_xun, actualizado hace más de 1 año
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Creado por tan_shao_xun
hace casi 9 años
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Pregunta 1
Pregunta
Which of the following describes how a ball moves as it is thrown upwards?
Respuesta
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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.
Pregunta 2
Pregunta
How do you explain the motion of the ball in Q1?
Respuesta
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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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