Forces and Motion – Revision Questions

Science
October 9, 2020
Forces and Motion
 
A force that occurs when an object rubs against another object
a. thermometer
b. conduction
c. friction
d. radiation
 
A(n)  _______________is a push or pull and can make an object stop, speed up, slow down, or change
direction.
a. gravitation
b. work
c. force
d. inertia
 
The force that works against motion is                .
a. friction
b. newton
c. direction
d. acceleration
 
Something that makes an object start moving, stop moving, speed up, or slow down is a(n)                .
a. load
b. position
c. force
d. effort
 
Gravity and friction are examples of                .
a. motions
b. simple machines
c. forces
d. distances
 
The force that attracts a body toward the center of Earth, or toward any other physical body
having mass.
a. orbit
b. weightless
c. gravity
d. planet
 
What changes when the pull of gravity changes?
a. mass
b. weight
 
The motion of an object is affected by friction.
a. True
b. False
 
When you slide an object there is less friction than when you roll it.
a. True
b. False
 
An object in motion will continue to move in a straight line at a constant speed unless a force
acts on it.
a. True
b. False
 
If an object is at rest, it will remain at rest until a force (a push or a pull) is applied to it.
a. True
b. False
 
The tendency of an object to stay in motion or at rest until a force acts upon it is                   .
a. frame of reference
b. movement
c. relation
d. inertia
 
An object in motion will stay in motion unless what happens?
a. it will always stop
b. it becomes frozen
c. a force acts on it
 
What describes the speed and direction of an object's motion?
a. velocity
b. force
c. magnitude
 
For every action there is an equal and opposite reaction is which of Newton's Laws of Motion?
a. First
b. Second
c. Third
 
Gravity does all of the following EXCEPT what?
a. Brings a ball back to Earth.
b. Pulls spilled liquid to the ground.
c. Keeps you from sliding on the grass.
d. Keeps Earth from flying off into space.
 
Newton’s law of motion that describes action-reaction pairs is the
a. first law.
b. second law.
c. third law.
d. law of gravity.
 
What is the tendency of an object to resist change in motion?
a. force
b. inertia
c. equilibrium
 
The motion of an object is not always affected by gravity.
a. True
b. False
 
Rollers can help reduce friction.
a. True
b. False