Test: inertia
For
Description: inertia
Subject: Science
Subtopic: Physics
Topic: Modern Physics
Grade: 8
Instructions: Answer all questions to get your test result.

Question 1 of 10
Any force that is keeping an object moving in a circle is know as
 


friction


centripetal force


gravity


a vector
Question 2 of 10
Acceleration is
 


a change in force over time


the speed of an object


a change in velocity over time


how fast an object moves
Question 3 of 10
When one object exerts a force on another object, the second object exerts a force back on the first object that is
 


equal in size and in the same direction


unequal in size and opposite in direction


unequal in size and in the same direction


equal in size and opposite in direction
Question 4 of 10
Balanced forces act on
 


unbalanced objects


balanced objects


two different objects


the same object
Question 5 of 10
A push or pull is called
 


acceleration


force


velocity


motion
Question 6 of 10
James combines all the forces acting on a tennis ball. He is finding the
 


frictional force


gravitational force


inertia force


net force
Question 7 of 10
Janet is sliding a box across the floor. What does she need to know to calculate the force on the box?
 


friction and gravity


acceleration and friction


mass and acceleration


mass and inertia
Question 8 of 10
Inertia is the resistance of an object to a change in its
 


gravity


mass


balanced force


motion
Question 9 of 10
A soccer player kicks a ball that is at rest. What do you predict will happen?
 


The ball will accelerate in the direction opposite the applied force.


The ball will lose momentum.


The ball will not move.


The ball will accelerate in the same direction as the applied force.
Question 10 of 10
According to Newton's second law of motion, force equals mass time
 


acceleration


momentum


velocity


mass