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Questions and Answers
What is the definition of acceleration?
What is the definition of acceleration?
- A measurement of how fast an object is moving
- The rate at which velocity is changing (correct)
- The force that opposes motion through direct contact
- The sum of all the forces acting on an object
In terms of forces, when is the net force zero?
In terms of forces, when is the net force zero?
- When forces are all in the same direction
- When forces are unbalanced
- When no forces are acting on an object
- When forces are balanced (correct)
What happens to an object's motion when the net force is nonzero?
What happens to an object's motion when the net force is nonzero?
- The object stops moving
- The object maintains its motion
- The object's motion changes (correct)
- The object speeds up indefinitely
Which term refers to a push or a pull that one object exerts on another?
Which term refers to a push or a pull that one object exerts on another?
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What does speed measure?
What does speed measure?
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When do we observe unbalanced forces?
When do we observe unbalanced forces?
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What is the definition of velocity?
What is the definition of velocity?
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Which type of force may or may not be opposite in direction?
Which type of force may or may not be opposite in direction?
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