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2 cards from this section. Quick, good the night before a test.
What is a force?
Think of actions like kicking or pulling.
Give an example of a force acting on an object.
Consider sports or daily activities.
What do you call a push or pull on an object?
Think about what actions can make something move.
True or False: A net force of zero means an object will start moving.
Consider when different forces are equal.
A football player applies a force to kick a stationary ball. If the ball rolls and stops after a few feet, what can we infer about the forces still acting on it?
Think about what happens when an object is in motion.
You and a friend are trying to push a heavy object. Neither of you can move it when pushing in opposite directions. If one of you stops pushing, what will happen?
Consider how net force changes when one force is removed.
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