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Laws of motion

Total questions: 63

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

What is a force?

a)

A push or a pull

b)

The constant motion of an object

c)

The acceleration of an object

d)

The mass of an object

2.

Which of these is evidence that an unbalanced force is acting on an object?

a)

The mass of the object is changing

b)

The object continues moving in a straight line

c)

The object remains at rest

d)

The motion of the object is changing

3.

Newton's First Law States........

a)

Objects at rest tend to stay at rest unless acted on by an outside force.

b)

Objects accelerate often and it is difficult to know when or how they will accelerate.

c)

Objects in motion tend to stay in motion unless acted on by an outside force.

d)

Both A & C

4.

What is inertia?

a)

An object that is accelerating

b)

Gravitational force

c)

An objects tendency to stay at rest or in motion

d)

An unbalanced force

5.

Inertia depends on __________.

a)

Weight

b)

Velocity

c)

Mass

d)

Acceleration

6.

Newton's second law states.....

a)

If there is more mass then there is more acceleration

b)

An object at rest wants to be in motion

c)

Force = Mass x Acceleration

d)

The force exerted on an object is not related to mass or acceleration

7.

What formula is used to calculate force?

a)

Acceleration = Force x Mass

b)

Force = Mass x Acceleration

c)

Work = Force x Distance

d)

Mass = Force + Acceleration

8.

An object with a mass of 100 kg is observed to accelerate at the rate of 5 m/s2. Calculate the force required to produce this acceleration.

a)

20N

b)

500 M/S

c)

500 Kg

d)

500N

9.

A force of 40 N acts upon a 2 kg block. Calculate the acceleration of the object.

a)

20 m/s2

b)

20 m/s

c)

80 m/s2

d)

80 m/s

10.

Newton's third law states.......

a)

For each action there is a larger reaction associated with it.

b)

None of these choices

c)

For each action there is an equal and opposite reaction.

d)

For each action there is a smaller reaction associated with it.

11.

Stacy is rowing a boat. She wants the boat to move forward. According to Newton's Third Law, in which direction should she move her paddle in the water?

a)

Backwards

b)

Above her head

c)

Forward

d)

East

12.

When an object is falling and the force of gravity is equal to the force of air resistance

a)

Terminal Velocity

b)

Top Speed

c)

Parachute Level

d)

Free Fall

13.

A hockey puck sliding across the ice is an example of this type of friction.

a)

Air Resistance

b)

Sliding

c)

Rolling

d)

Static

14.

Forces that are equal in size but in opposite directions are called ______________ forces.

a)

Strong

b)

Crazy

c)

Balanced

d)

Unbalanced

15.

The sum of all forces acting on an object.

a)

Added forces

b)

Net force

c)

forcey force

d)

Equation force

16.

The tendency of an object to just keep doing what it is doing.

a)

Laziness

b)

F=MA

c)

No Clue

d)

Inertia

17.
Which of the following best describes the velocity of an object?
a)
30 m/s
b)
30 m East
c)
30 m/s East
d)
30 m/s2
18.
A bus travels 20 km in 30 minutes.  What is the average speed of the bus?
a)
20 km/h
b)
30 km/h
c)
40 km/h
d)
50 km/h
19.
Friction and gravity are both examples of a force.
a)
True
b)
False
20.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
21.
You hit a wall with a stick.  The equal but opposite reaction is _____
a)
the wall pushes against you
b)
the stick pushes against you
c)
you push against the stick
d)
the wall pushes against the stick
22.
A person is pushed forward into their seat belt when a car stops quickly.  Which law is this?
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
23.
An object at rest will _______ if no outside forces are applied.
a)
stay at rest
b)
increase velocity
c)
decrease mass
d)
fall to the ground
24.
What is Newton's First Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
25.
What is the name for a push or pull?
a)
movement
b)
force
c)
speed
d)
density
26.
What pulls a ball back to earth?
a)
Momentum
b)
Gravity
c)
Friction
d)
Molecules
27.
An object will always move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
28.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
speed
c)
balanced forces
d)
unbalanced forces
29.
If an object is at rest (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
30.
Which law explains why a person in a car slides to the right when going through a very sharp left turn on the highway. 
a)
1st Law
b)
2nd Law
c)
3rd Law
31.
An object will not have any inertia if it is _?
a)
accelerating
b)
moving in a circle
c)
in space
d)
all objects have inertia
32.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which law best explains this situation?
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
33.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
34.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
35.
The force of attraction between all matter.
a)
inertia
b)
friction
c)
net force
d)
gravity
36.
When all the forces on an object are equal and opposite, & the net force is zero, that's...
a)
balanced forces
b)
unbalanced forces
c)
terminal velocity
d)
reaction forces
37.
Mass x acceleration = ?
a)
force
b)
inertia
c)
momentum
d)
velocity
38.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
39.
A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.
a)
The Law of Inertia
b)
The Law of Acceleration
c)
The Law of Conservation of Momentum
40.
Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more mass and requires more force to accelerate.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
41.
A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.
a)
Law of Inertia
b)
Law of Acceleration
c)
Law of Conservation of Momentum
42.
This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
43.
When the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)
Newton's Law of Force Pairs
d)
Newton's Law of Biology
44.
Calculate the acceleration of the tire in the diagram.
a)
5.3 m/s2
b)
0.2 m/s2
c)
12.0 m/s2
d)
9.8 m/s2
45.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
There is no such thing as force 
46.
What is Newton's First Law of Motion?
a)
F = m x a
b)
Every action has an equal an opposite reaction
c)
An object at rests stays, an object in motion stays in motion
d)
Friction
47.
What pulls a ball back to earth?
a)
Gas
b)
Friction
c)
Gravity
d)
Molecules
48.
A _______ is a push or pull.
a)
Newton
b)
Acceleration
c)
Momentum
d)
Force
49.
Which force produces a change in motion?
a)
Unbalanced force
b)
Balanced force
c)
Gravitational force
d)
Frictional force
50.
What is the standard unit force is measured in?
a)
Newton
b)
Gram
c)
Pound
d)
Meter
51.
The law in the picture represents---
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
d)
Newton's 4th law
52.
What Newton's law does this picture represent?
a)
Newton's 2nd law
b)
Newton's 1st law
c)
Newton's 3rd law
d)
Newton's 5th law
53.
Which has more inertia--
a)
Truck
b)
Cat
c)
Ant
d)
Skateboard
54.
How many laws of motion does Newton have?
a)
One
b)
Two
c)
Three
d)
Four
55.
1000 kg is the -----
a)
Force
b)
Mass
c)
Acceleration
d)
Weight
56.
20 N is the ----
a)
Mass
b)
Force
c)
Acceleration
d)
Weight
57.
45 meters per second squared is the--
a)
Acceleration
b)
Mass
c)
Weight
d)
Force
58.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
59.
An object at rest will _____ if not outside forces are applied.
a)
Stay at rest
b)
Decrease mass
c)
Increase velocity
60.
The total momentum before a collision is _________ the total momentum after a collision.
a)
equal to 
b)
less than 
c)
more than
d)
It depends on the type of collision
61.
A 3,000 kg truck moving at +10 m/s hits a 1,000 kg parked car which moves off at +15 m/s. What is the velocity of the truck?
a)
10 m/s
b)
0 m/s
c)
5 m/s
d)
2 m/s
62.
A 120 kg lineman moving at -2 m/s tackles an 80 kg fullback moving at +8 m/s. If the fullback's velocity after they collide is +2 m/s, what is the lineman's velocity?
a)
2 m/s
b)
8.7 m/s
c)
4.7 m/s
d)
6 m/s
63.
Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:
a)
2 m/s 
b)
3.4 m/s 
c)
4.6 m/s 
d)
7.1 m/s

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