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Type: Multiple-Choice
Category: Energy and Momentum
Level: Grade 9
Score: 1
Tags: energy
Author: jlovering
Created: 11 years ago

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Energy and Momentum Question

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Grade 9 Energy and Momentum

Imagine an object held at some height above the ground. It is released and falls toward the ground. Ignoring air resistance or friction, which of the following must be true?
  1. Before it falls, all of its energy must be potential energy.
  2. At the end of its fall, all of its energy must be converted to kinetic energy.
  3. During its fall, the combination of its kinetic and potential energy must equal the amount of potential energy with which it started.
  4. All of the above are true?