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


a vector


centripetal force


gravity
Question 2 of 10
Acceleration is
 


how fast an object moves


a change in velocity over time


the speed of an object


a change in force over time
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 opposite in direction


equal in size and in the same direction


unequal in size and in the same direction


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


balanced objects


the same object


two different objects


unbalanced objects
Question 5 of 10
A push or pull is called
 


force


acceleration


motion


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


gravitational force


net force


frictional force


inertia 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?
 


acceleration and friction


mass and inertia


mass and acceleration


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


mass


motion


balanced force


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


The ball will lose momentum.


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


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
 


mass


acceleration


velocity


momentum