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WorksheetsNewton's Laws
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
A hammer striking a nail drives it into a surface. What effect does the nail have on the hammer?
a)
It has no effect.
b)
It pushes back against the hammer.
c)
It speeds up the hammer.
d)
It has no effect on the hammer but it moves the nail.
2.
When Amelia is swimming, which way does she have to push with her hands to move forward?
a)
upward
b)
downward
c)
forward
d)
backward
3.
Newton's third law of motion states that _______________.
a)
for every action, there is an equal and opposite reaction
b)
an object at rest will stay at rest or an object in motion will stay in motion with a constant velocity
c)
acceleration is directly proportional to the magnitude of the force acting on it and inversely proportional to the mass of the object
d)
whenever an object is falling, gravity pulls it down
4.
This diagram shows a segment of a roller coaster. As the roller coaster car moves from Point A to Point B, its speed increases.
Which statement explains why the speed increases?
Which statement explains why the speed increases?
a)
The force of friction decreases on the downhill track.
b)
The inertia of the roller coaster car decreases.
c)
Balanced forces act on the roller coaster car.
d)
Unbalanced forces act on the roller coaster car.
5.
According to Newton's third law, which statement describes why it is difficult to walk on an icy pond?
a)
Your shoes push against the ice, but the ice cannot push your shoes.
b)
Your shoes cannot push against ice, so the ice cannot push against your shoes.
c)
The ice is cold so it crumbles as you push against it.
d)
The ice melts under your shoes, making it much more slippery.
6.
Force equals mass ___________.
a)
velocity
b)
acceleration
c)
speed
d)
distance
7.
The force that prevents a ball rolling on the ground from continuing on its path forever is __________.
a)
inertia
b)
gravity
c)
friction
d)
mass
8.
The table shows the acceleration of different objects when acted upon by a constant force.
a)
P
b)
Q
c)
R
d)
S
9.
According to the equation F=m x a, which statement below is true when mass remains constant?
a)
Acceleration remains constant as force increases.
b)
Acceleration increases as force increases.
c)
Acceleration decreases as force increases.
d)
Acceleration remains constant as force decreases.
10.
How much force would be required to accelerate a 2 kg object at a rate of 15 m/sec2?
a)
7.5 newtons
b)
13 newtons
c)
17 newtons
d)
30 newtons
11.
Which is the most accurate definition for the term acceleration?
a)
increasing speed over time
b)
decreasing speed over time
c)
increasing momentum over time
d)
change in velocity over time
12.
How much force does a soccer goalie experience when stopping a ball with the mass of 0.25 kg that accelerates at the rate of 12 meters per second2?
a)
3 N
b)
0.021 N
c)
48 N
d)
11.75 N
13.
Four bike riders were involved in a study of how quickly they could accelerate from a stop. The mass and acceleration of each rider are given in the table below.
Which rider applied the least amount of force to accelerate her bike?
Which rider applied the least amount of force to accelerate her bike?
a)
Rider 1
b)
Rider 2
c)
Rider 3
d)
Rider 4
14.
A bicyclist was traveling at a uniform speed of 5 m/sec. When she started to go down a hill, the bicyclist's speed increased to 8 m/sec over a period of 3 seconds. What was the bicyclist's rate of acceleration going down the hill?
a)
1 m/sec2
b)
3 m/sec2
c)
9 m/sec2
d)
40 m/sec2
15.
A bicyclist is traveling at 5 meters per second. Going up a hill, the velocity increases to 8 meters per second in 3 seconds. What will the acceleration rate be going down the hill?
a)
1 meter per second2
b)
9 meter per second2
c)
39 meter per second2
d)
4.3 meter per second2
16.
An object is accelerating when _______________.
a)
it is not moving
b)
it is spinning around
c)
it is changing speed or direction
d)
it continues at the same speed
17.
Newton's first law of motion states that an object must travel ______ unless acted upon by an external force.
a)
in a straight line while speeding up
b)
in an orbit at a constant velocity
c)
in a straight line at a constant speed
d)
in a straight line while slowing down
18.
The chart below lists the forces applied to each of four toy cars. If all the cars accelerate at the same rate, which car must have the largest mass?
a)
P
b)
Q
c)
R
d)
S
19.
Newton's first law states that an object must travel at a constant speed and in ___________, unless some outside force compels it to change.
a)
a straight line
b)
a curved path
c)
a cyclic motion
d)
a wave-like manner
20.
The graph below shows the velocity of an object as a function of time. In which part of the graph does the object move with maximum acceleration?
a)
1
b)
2
c)
3
d)
4
21.
If you know the mass of an object and the force applied to it, you can use Newton's second law of motion to calculate the object's:
a)
acceleration
b)
density
c)
composition
d)
volume
22.
According to Newton's second law of motion, upon what two factors does the acceleration of an object depend?
a)
the velocity of the object and the amount of force applied it
b)
the mass and weight of the object
c)
the mass of the object and the amount of force applied to it
d)
the speed and direction that the object is moving
23.
Suppose you were to fill a balloon with air then let go of it without tying it closed. What causes the balloon to fly away?
a)
Your breath contains helium, which is lighter than air.
b)
The balloon's movement is the reaction to the force of air escaping.
c)
The balloon's movement is the reaction to the force of air escaping.
d)
The air around the balloon is under higher pressure, so it pulls the balloon forward.
24.
In the Olympic sport of luge, athletes race sleds down an icy track. The speed of a luge sled depends on several factors, including how quickly the rider can accelerate at the beginning.
The table below shows the combined mass of rider and sled and the amount of force the riders are able to exert to accelerate themselves from a stop. Assuming all other factors are the same, which rider will be able to produce the greatest acceleration?
The table below shows the combined mass of rider and sled and the amount of force the riders are able to exert to accelerate themselves from a stop. Assuming all other factors are the same, which rider will be able to produce the greatest acceleration?
a)
Rider 1
b)
Rider 2
c)
Rider 3
d)
Rider 4
25.
What is the mass of a stone which accelerates at a rate of 2 meters/second2 when a force of 12 newtons is placed on it?
a)
6 kilograms
b)
14 kilograms
c)
10 kilograms
d)
24 kilograms
26.
Suppose a constant force of 8 newtons is applied to an object with a mass of 2 kilograms. What will happen to the object?
a)
It will move at a constant speed of 4 meters per second.
b)
It will move at a constant speed of 16 meters per second.
c)
It will accelerate at a rate of 4 meters per second per second.
d)
It will accelerate at a rate of 16 meters per second per second.
27.
According to Newton's first law of motion, an object's velocity will change only if a force acts on it. When you roll a ball along the ground, what force causes its velocity to change?
a)
inertia
b)
momentum
c)
friction
d)
kinetic energy
28.
Your brother is driving 40 km/hour when he slams on his brakes to avoid hitting a dog crossing the road. If it takes him 5 seconds to stop, what is his rate of acceleration?
a)
8 km/hr/sec
b)
40 km/hr/sec
c)
45 km/hr/sec
d)
200 km/hr/sec
29.
If each vehicle below is traveling at 30 miles per hour on a straight road, which one would be the hardest to stop?
a)
a bicycle
b)
a compact car
c)
a tractor trailer
d)
a tractor trailer loaded with foam rubber
30.
If an object is accelerating, then the forces acting on it must be:
a)
zero
b)
balanced
c)
unbalanced
d)
increasing
31.
Which equation below represents Newton's second law of motion?
a)
W = F x d
b)
F = m x a
c)
d = m/v
d)
F = m/a
32.
When a basketball is dropped to the floor, it bounces back up to the player's hand. Which of Newton's laws best explains why this occurs?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
Newton's Fourth Law
33.
Which of the following best completes this sentence? In every interaction, forces occur in ___________.
a)
specific places
b)
single units
c)
one direction only
d)
pairs
34.
A balloon is inflated and then released. What causes it to fly forward?
a)
The air around it pulls it forward.
b)
The shrinking of the balloon moves it forward.
c)
Air escaping from the back of the balloon pushes in the direction opposite the motion.
d)
Air escaping from the back surrounds the balloon and pulls it forward.
35.
The table below shows the starting and ending velocities of four different objects, along with the time intervals between these measurements.
Which object moves with the maximum acceleration?
Which object moves with the maximum acceleration?
a)
1
b)
2
c)
3
d)
4
36.
Friction is a _________.
a)
form of gravity
b)
form of energy
c)
force
d)
form of matter
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