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WorksheetsNewton's Laws Practice Test
Total questions: 23
Worksheet time: 46mins
Name
Class
Date
1.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
2.
Which law explains when a magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Law 1
b)
Law 3
3.
A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
4.
What is the definition of "weight"?
a)
the force in which gravity pulls on an object
b)
the time it takes to get on a ride
c)
the amount of matter in an object
d)
the size of an object
5.
267.5 N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair?
a)
26.75 kg
b)
63.69 kg
c)
263.3 kg
d)
1123.5 kg
6.
Which of these best describes why your weight (on Earth) would change on another planet?
a)
weight doesn’t change, no matter where you are
b)
different planets have different gravitational pulls
c)
In general, the smaller the planet, the greater weight
d)
dehydration effects on different planets change weight
7.
A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...
a)
The grip of the player's hands on the ball
b)
the air resistance of the ball
c)
the force of the ball against the bat
8.
What is the net force in this diagram?
a)
8N right
b)
2 N right
c)
8N left
d)
2N left
9.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
10.
LT4: The graph shows Ashley riding her bike to Maria's house.
What was occurring from point B to point C?
What was occurring from point B to point C?
a)
She was increasing her speed.
b)
She stopped for 4 minutes
c)
She was decreasing in speed
11.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?
a)
feathers
b)
iron
c)
same
d)
depends on their friction
12.
What is the unbalanced force on a boy and his skateboard if the total mass of the boy and skateboard is 62 kg and their acceleration is 0.36 m/s/s forward?
a)
22.32 N
b)
172.2 N
c)
180 N
d)
24 N
13.
A student stands on a scale, and the scale reads 85 pounds. What is being measured by the scale?
a)
The volume of the student
b)
The mass of the student
c)
The gravity acting on the student
d)
The air pressure on the student
14.
The tendency of an object to stay in motion or at rest is called
a)
velocity
b)
acceleration
c)
speed
d)
inertia
15.
What is the difference between mass and weight?
a)
mass is how much matter is in an object, and weight is the gravitational pull on that object
b)
mass and weight are the same
c)
weight affects how much mass is in an object
d)
weight is determined by how many atoms make up an object
16.
If an elevator is going up with acceleration, the apparent weight of a body is
a)
you feel lighter
b)
you don’t feel your weight
c)
you feel heavier
d)
you feel your true weight
17.
What is the apparent weight of a 47.0 kg person riding in an elevator that is accelerating down at 3.0 m/s2?
a)
602 N
b)
461 N
c)
320 N
d)
0 N
18.
You’re apparent weight is smaller when…
a)
You accelerate upwards
b)
You accelerate downwards
c)
You accelerate to the right
d)
You accelerate to the left
19.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
20.
What is the force of friction between a block of ice that weighs 950 N and the ground if μ = .12?
a)
65 N
b)
226 N
c)
175 N
d)
114 N
21.
What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N?
a)
0.78
b)
0.51
c)
0.78 N
d)
0.58 N
22.
A boy stands on a bathroom scale in an elevator. His normal weight is 600 N and the scale reads 520 N,
the elevator's acceleration is
a)
downward
b)
upward
c)
zero
d)
the information is not enough to Answer
23.
if the elevator moving upward and speeding up,
a)
the apparent weight greater than the real weight because the acceleration is upward.
b)
the apparent weight is less than the real weight because the acceleration is downward,
c)
the apparent weight equal the real weight
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