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Force And Laws Of Motion
Test Description: Review questions on force and the laws of motion.
Instructions: Answer all questions to get your test result.
1) What is Newton's third law of motion?
A
An object at rest will remain at rest.
B
An outside force on an object can change its motion or its direction.
C
Every action has an equal and opposite reaction.
D
Force is mass times acceleration.
2) You turn on a garden hose and let go. The end starts flying around and water is sprayed everywhere. Which of Newton's laws does the hose represent?
A
none
B
third
C
second
D
first
3) How does Newton's third law of motion describe forces?
A
as an infinite number of forces
B
as many forces
C
in pairs of forces
D
as individual forces
4) What is a unit of acceleration?
A
m/s2
B
m/s
C
kg-m/s2
D
m2/s
5) What does Newton's second law of motion describe?
A
an outside force stopping or changing an object's speed or direction
B
the relationship between force, mass, and acceleration
C
inertia
D
an action causing a reaction
6) How much force is needed to accelerate a 2000-kg car at 5 meters per second per second?
A
500 N
B
1000 N
C
10000 N
D
400 N
7) What is the name of Newton's first law of motion?
A
law of objects at rest
B
law of opposing forces
C
law of acceleration
D
law of inertia
8) An object stays at rest until what happens to it?
A
Gravity overcomes friction.
B
An outside or unbalanced force acts upon the object.
C
Inertia releases it.
D
Friction builds up and moves the object.
9) What is acceleration?
A
change in distance/change in time
B
change in pressure/change in time
C
change in velocity/change in time
D
change in mass/change in volume
10) Which of these is the same as a newton (N)?
A
kg-m/s2
B
m2/s
C
m/s2
D
m/s
*select an answer for all questions
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