Olivia says to Mia that the heavier an object is the faster it falls. Mia tells Olivia that she is wrong. Olivia say the longer an object falls the faster it falls. Elizabeth says there are more factors involved when an object falls. Who do you think is right and why?
These videos may help answer the questions
https://www.youtube.com/watch?v=KDp1tiUsZw8 moon landing
https://www.youtube.com/watch?v=E43-CfukEgs Brian Cox
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