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Forces Part 2
Test Description: Types of forces, combining forces, and Newton's laws of motion
Instructions: Answer all questions to get your test result.
1) A force can be best defined as
A
something that is exerted
B
a push or a pull
C
change in velocity over time
D
gravity or friction
2) An object at rest will remain at rest and an object in motion will remain in motion describes
A
Newton's 3rd Law of Motion
B
Newton's 2nd Law of Motion
C
None of the above
D
Newton's 1st Law of Motion
3) Which of the following is an example of unbalanced forces?
A
A 10 kg box of books sitting at rest
B
Friction pushes against an object, slowing it down
C
A car in motion will tend to stay in motion, while a car at rest will tend to stay at rest
D
A car that travels at a constant velocity
4) What is the net force on a car if the forward force is 20N and the friction force acting on it is 5N?
A
35N forwards
B
35N backwards
C
5N forwards
D
5N backwards
5) Newton's 3rd Law of Motion states that
A
and object at rest will remain at rest, unless acted upon by another force
B
force is equal to mass times acceleration
C
for every action there is an equal and opposite reaction
D
the gravitational force between two objects is related to the masses and the distance between them
6) A baseball hit with a bat flies farther than a bowling ball hit with a bat. This is an example of
A
Newton's 3rd Law of Motion
B
None of the above
C
Newton's 2nd Law of Motion
D
Newton's 1st Law of Motion
7) A soccer ball continues to roll until it hits something. This is an example of
A
Newton's 3rd Law of Motion
B
Newton's 2nd Law of Motion
C
None of the above
D
Newton's 1st Law of Motion
8) You are in a boat and you paddle the water back with your oar. The boat moves forward. This is an example of
A
Newton's 2nd Law of Motion
B
Newton's 3rd Law of Motion
C
Newton's 1st Law of Motion
D
None of the above
9) ____________ is the tendency of an object to keep moving or stay at rest.
A
force
B
gravity
C
inertia
D
friction
10) A book on your desk stays still because the force of gravity is balanced by
A
a normal force
B
a gravitational force
C
an elastic force
D
a friction force
*select an answer for all questions
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