Newton's Third Law Question Preview (ID: 51456)
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Newton's third law says...
a) An object at rest stays at rest and an object in motion stays in motion unless acted upon by an outside force.
b) For every action, there is an equal and opposite reaction.
c) The acceleration of an object is determined by the sun of the forces acting on it and the mass of of the object.
d) You must come to a complete stop before turning a corner.
Newton's third law is also called
a) the law of force and acceleration.
b) f=ma
c) the action-reaction law.
d) the law of inertia.
When do action-reaction forces take place?
a) The action force occurs first.
b) The reaction force occurs first.
c) The force of the lighter object happens first.
d) The action-reaction forces occur at the same time.
Action and reaction forces are NOT balanced because they ....
a) are equal in strength.
b) act on different objects.
c) cancel each other out.
d) act in the same direction.
When two objects with unequal masses collide, they will.....
a) Accelerate at different rates (one moves faster than the other).
b) Accelerate in the same direction (both move in the same direction).
c) Come to a complete stop (neither object continues to move).
d) Continue moving in the same speed and direction that they moved before they collided.
When two objects with equal masses collide, they will...
a) Accelerate at the same speed but in opposite directions.
b) Come to a complete stop (neither object continues to move).
c) Accelerate at different speeds but in the same directon.
d) Continue moving in the same speed and direction that they moved before they collided.
During P.E., the soccer ball collides with the goalie. What happens to the soccer ball?
a) The ball stops moving completely.
b) The ball accelerates at the same rate and in the same direction as the goalie.
c) The ball accelerates more and in a different direction than the goalie.
d) The ball continues to move at the same velocity (speed and direction) as before.
A baseball bat hit a ball with a force of 100 N. What is the force and its direction exerted by the ball on the bat?
a) 100 N in the same direction
b) 100 N in the opposite direction
c) 200 N in the same direction
d) 200 N in the opposite direction
A basketball and a ping pong ball collide with equal speed but accelerate at different rates. What must be true about the mass of the objects?
a) The basketball has more mass than the ping pong ball.
b) The basketball has less mass than the ping pong ball.
c) The basketball and the ping pong ball have equal mass.
d) It is impossible to tell the mass of the two balls.
Every time your cat's paw hits her toy on a string, it swings away from her. How does this demonstrate Newton's third law?
a) An object that is not moving, needs a force to make it move.
b) The amount of mass and force affects the acceleration of the object
c) For every action your cat takes, the toy on the string has an equal reaction in the same direction.
d) For every action your cat takes, the toy on the string has an equal reaction in the opposite direction.
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