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4.8: Thinking about the material .
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Reflect and research
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It was once believed that there was an absolute reference frame called the “luminiferous aether”. What was the name of the experiment that disproved the existence of this frame of reference?
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Find the centripetal acceleration of the Earth around the Sun.
To try at home
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Describe and carry out a small experiment to confirm that the amount of time that it takes for a projectile to fall a certain distance does not depend on the horizontal component of its velocity.
To try in the lab
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Develop a proposal for measuring how fast you can throw a ball, and carry out the experiment.
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Develop a proposal for measuring how far you can jump with a running start (e.g. a long jump).
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Propose an experiment to determine the period of the sun’s rotational motion.