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# Physics Force 3

Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the opposite direction to that of the first object. (Always - True, False, Sometimes true) Always True
Forces always occur ___________ in pairs
An archer shoots an arrow. Consider the action force to be the bow string against the arrow. What is the reaction to this force? The arrows push against the bow string
A player hits a ball with a bat. The action force is the impact of the bat against the ball. What is the reaction to this force? The force of the ball against the bat.
As a ball falls, the action force is the pull of the earth's mass on the ball. What is the reaction to this force? The pull of the balls mass on the earth
A person is attracted towards the center of the earth by a 500N gravitational force. The force with which the earth is attracted toward the person is ________ 500N
An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug on the car is what? (Smaller, larger, same?) The same
An unfortunate bug splatters against the windshield of a moving car. Compared to the deceleration of the car, the deceleration of the bug is what? (Smaller, larger, same?) Larger
If a horse pulls on a wagon at rest, the wagon pulls back equally as much on the horse. Will the wagon be set into motion? Yes, because there is a net force acting on the wagon.
A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. Which vehicle will undergo the greater change in velocity? The Volkswagen
Bronco the skydiver falls toward the earth. The attraction of the earth on Bronco pulls him down. What is the reaction to this force? Bronco pulling up on the earth
A rocket is able to accelerate in the vacuum of space when it fires its engines. The force that propels the rocket is the force of the ________ on the ______________ exhaust gases on the rocket
A woman weighing 500N sits on the floor. She exerts a force on the floor of __________ 500N
Two people pull on a rope in a tug-of-war. Each pulls with 400N of force. What is the tension in the rope? 400N
Two people, one having twice the mass of the other, play tug-of-war with a 12 meter rope on frictionless ice. After a brief time, they meet. How far does the heavier person slide? 4m
ToF: Whenever one object exerts a force on another object, the second object always exerts a force back on the first object. True
ToF: A rocket ship is pushed forward by gases that are forced out the back of the ship. True
ToF: In order to make a cart move forward, a horse must pull harder on the cart than the cart pulls on the horse. False
ToF: A bicycle and a parked car have a head-on collision. The force of impact is greater on the bicycle. False
Created by: tmurph773

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