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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 the name of Newton's first law of motion?
A
law of opposing forces
B
law of inertia
C
law of acceleration
D
law of objects at rest
2) What is friction?
A
An opposing force between two objects
B
The opposite of inertia
C
The opposing force of gravity
D
A force that keeps objects moving in a straight line
3) Complete this sentence: An object at rest tends to
A
create friction.
B
remain at rest.
C
change its direction.
D
move in a straight line.
4) When no friction is involved, what can an outside force do to a moving object?
A
nothing.
B
change the object's speed only.
C
change the object's speed or direction.
D
change the object's direction only.
5) An object stays at rest until what happens to it?
A
An outside or unbalanced force acts upon the object.
B
Gravity overcomes friction.
C
Friction builds up and moves the object.
D
Inertia releases it.
6) A 10 kg falling object accelerates downward at 9.8 meters per second per second. What is the force acting on the object.
A
10 N
B
100 N
C
98 N
D
9.8 N
7) What is the formula for force?
A
Force= mass/acceleration
B
Force= acceleration/mass
C
Force= mass * velocity
D
Force= mass * acceleration
8) What does Newton's second law of motion describe?
A
intertia
B
an action causing a reaction
C
an outside force stopping or changing an object's speed or direction
D
the relationship between force, mass, and acceleration
9) How much force is needed to accelerate a 2000-kg car at 5 meters per second per second?
A
400 N
B
500 N
C
10000 N
D
1000 N
10) What is acceleration?
A
change in distance/change in time
B
change in mass/change in volume
C
change in velocity/change in time
D
change in pressure/change in time
*select an answer for all questions
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