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Forces Test Practice

Total questions: 100

Worksheet time: 2hrs 34mins

Name
Class
Date
1.

What is the net force of an object that is being pulled in opposite directions with equal strength?

a)

0N

b)

10N

c)

5N

2.

Is this object under balanced or unbalanced forces?

a)

balanced

b)

unbalanced

3.

Find Net Force

a)

17 N left

b)

20 N left

c)

20 N right

d)

17 N right

4.

A object grows in mass as it flies. If its force stays the same what happens to the speed of the object?

a)

It stays the same

b)

It increases as well

c)

It decreases

5.

30m/s westward describes...

a)

speed

b)

velocity

c)

both speed & velocity

d)

momentum

6.

distance is the path taken to a particular desitination.

a)

True

b)

False

7.

if you jog for 1h and travel 10km, 10km/h describes your...

a)

momentum

b)

average speed

c)

displacement

d)

acceleration

8.

an object's speed is a measure of...

a)

how fast the object is moving

b)

the object's direction

c)

the object's displacement per unit of time.

d)

all of the above

9.

which of the quantities below represents a velocity?

a)

25m/s

b)

10km/min

c)

12mi/h east

d)

3mi/h

10.

a car travels a distance of 210mi in exactly 4h. The driver calculates that he traveled 52.5mi/h. which of the following terms most nearly describes his calculation?

a)

average speed

b)

instantaneous speed

c)

instantaneous acceleration

d)

displacement

11.

which of the following is not accelerated motion?

a)

a ball being juggled

b)

someone walking at 2.5m/s along a road

c)

a satellite circling earth

d)

a braking cyclist

12.

average speed can be represented by the mathematical equation...

a)
Distance / Time
b)
Distance * Time
c)
Speed / Time
d)
Speed * Time
13.

When an object changes position relative to a reference point, the object is...

a)
Increasing in size
b)
Changing color
c)
In motion
d)
Decreasing in size
14.

when the motion of an object is shown by a straight line on a distance-time graph with distance on teh y-axis, the slope of the line is the...

a)
Speed of the object
b)
Acceleration of the object
c)
Mass of the object
d)
Force applied on the object
15.

acceleration can mean...

a)

speeding up

b)

slowing down

c)

changing direction

d)

all of the above

16.

acceleration can mathematically be represented as...

a)
Change in velocity divided by time
b)
Change in distance divided by time
c)
Change in speed divided by distance
d)
Change in time divided by velocity
17.

When velocity changes by the same amount over each time interval, acceleration is...

a)
Decreasing
b)
Increasing
c)
Constant
d)
Zero
18.

What does it mean when a change in velocity is negative?

a)
The object is speeding up
b)
The object is changing direction
c)
The object is at rest
d)
The object is slowing down
19.

The combination of all the forces acting on an object is..

a)
The combination of two or more companies
b)
The combination of two or more colors
c)

Net Force

d)
The combination of two or more numbers
20.

Which is an example of static friction?

a)
Friction between a car's tires and the road as the car is moving
b)
Friction between a boat and water as the boat is moving
c)
Friction between a plane's wings and air as the plane is flying
d)
Friction between a book and a table when the book is at rest
21.

1 Newton is the force that can give a mass of 1kg an acceleration of...

a)
1 m/s^2
b)
10 m/s^2
c)
100 m/s^2
d)
1000 m/s^2
22.

When an object is in free fall, the only force(s) acting on it is...

a)
Gravity
b)
Friction
c)
Air Resistance
d)
Magnetic Force
23.

Free-fall acceleration near Earth's surface...

a)
9.8 m/s^2
b)
10 m/s^2
c)
11 m/s^2
d)
12 m/s^2
24.
According to Newton’s second law of motion___________.
a)
Objects in motion will eventually stop
b)
Force is related to mass and acceleration
c)
Gravity is a force that exists only between really large masses
d)
Sometimes action forces are equal in size and direction
25.
Acceleration is the _______________.
a)
change in motion of an object
b)
tendency of on object to resist changes in motion
c)
property of all moving objects
d)
the speed of something in a given direction
26.
If you blow up a balloon, and then release it, the balloon will fly away. This is an illustration of_____________________.
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
none of the above
27.

A push/pull exerted on an object is called

a)

Force

b)

Momentum

c)

Speed

d)

Net force

28.

Are the forces balanced or unbalanced?

a)

Balanced

b)

Unbalanced

29.

Name the missing force.

a)

Gravitational Force

b)

Normal Force

c)

Friction Force

d)

Applied Force

30.

Name the missing force.

a)

Normal Force

b)

Push/Pull Force

c)

Friction Force

d)

Tension Force

31.

Name the missing force.

a)

Normal Force

b)

Friction Force

c)

Gravitational Force

d)

Push/Pull Force

32.

Name the missing force.

a)

Gravitational Force

b)

Normal Force

c)

Tension Force

d)

Friction Force

33.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

Normal Force

b)

Gravitational Force

c)

Friction Force

d)

Air resistance

34.

Which of the following is true about this free-body diagram?

a)

the forces are balanced

b)

the object is moving upward

c)

the object is free-falling

d)

the forces are unbalanced

35.

Newton's First Law: An object in motion will stay in motion and an object at rest will stay at (a)   unless acted on by an outside force.

36.

A leftward force is applied to a crate to push it across the floor at a constant speed. Which is the correct force diagram?

a)
b)
c)
d)
37.

A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.

a)
b)
c)
d)
38.

Force from two surfaces sliding against each other.

a)

tension

b)

friction

c)

normal

d)

gravitational

39.

Force from ropes or strings.

a)

tension

b)

friction

c)

normal

d)

gravitational

40.

Perpendicular force from a surface of contact.

a)

tension

b)

friction

c)

normal

d)

gravitational

41.

Force that attracts an object to the center of the earth.

a)

tension

b)

friction

c)

normal

d)

gravitational

42.

Which direction is the friction force drawn?

a)

Upward

b)

Downward

c)

opposite to motion

d)

opposite to normal force

43.

A soccer player kicks a soccer ball. What is the agent in this situation?

a)

ball

b)

player

c)

kick

d)

ground

44.

What is the upward force on the box?

a)

F earth/box

b)

F tension/box

c)

F string/box

d)

F box/string

45.

Which direction is the friction force?

a)

up

b)

down

c)

right

d)

left

46.

How should the friction force be labeled?

a)

F friction/box

b)

F earth/box

c)

F friction/table

d)

F table/box

47.

What type of force is keeping the box on the ramp?

a)

gravity

b)

friction

c)

tension

d)

normal

48.

Which diagram would have only two forces?

a)
b)
c)
d)
49.

True or False: Force Diagrams must have more than one force.

a)

True

b)

False

50.

True or False: The gravitational force is always drawn straight down.

a)

True

b)

False

51.

True or False: String forces are always drawn straight up.

a)

True

b)

False

52.

Which picture would not have a friction force?

a)
b)
c)
d)
53.

Which diagram does not have a tension force?

a)
b)
c)
d)
54.
If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
55.
What are the units of Force?
a)
kg m/sec
b)
kg m
c)
N
d)
N sec
56.

A weightlifter holds a 50 Kg bar still. What force is the weightlifter exerting to keep the bar from falling?

a)

300 N

b)

400 N

c)

390 N

d)

490 N

57.

What is the proper equation for calculating mass?

a)

m = F*a

b)

m = a/F

c)

m = F+a

d)

m = F/a

58.

How do you calculate weight?

a)

Weight = m/g

b)

Weight = m+g

c)

Weight = m

d)

Weight = m*g

59.

What is the weight of a 25 kg statue on earth?

a)

25 N

b)

25 lbs

c)

245 N

d)

245 lbs

60.

What best describes what the normal force would look like here?

a)

Straight down and parallel to the gravitational force

b)

Directly upward

c)

Straight to the right

d)

Upward but at an angle

61.

Which is the best description of tension?

a)

The force that opposes motion

b)

The force that opposes weight

c)

The force in a string that is equal to weight

d)

The force that opposes friction

62.

Which would have the greatest friction?

a)

A 50 N weight dragged along a dirty hardwood floor

b)

A 50 N weight dragged along a clean marble table

c)

A 55 N weight dragged along a clean marble table underwater

d)

A 5,000 kg weight dragged along sandpaper in the middle of SPACE!!!

63.

What is the mass of a 35 N weight on earth?

a)

35 kg

b)

10 kg

c)

343 kg

d)

3.6 kg

64.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
65.
What is a normal force?
a)
It always opposes gravity.
The same as a frictional force.
b)
It is equivalent to the weight of an object.
c)
It acts perpendicular to a contact surface.
d)
It is equivalent to inertia.
66.
Which of the following shows the direction of the friction force?
a)
A
b)
B
c)
C
d)
D
67.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
68.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
69.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
70.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
71.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
72.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
73.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
74.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
75.
Name the missing force...
a)
thrust
b)
frictional force
c)
normal force
d)
weight force
76.
Name the missing force...
a)
weight force
b)
normal force
c)
buoyant force
d)
applied force
77.
Match description with free-body diagram.
a)
A book is at rest on a tabletop.
b)
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
c)
An egg is free-falling from a nest in a tree. Neglect air resistance.
d)
A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.
78.
Match description with free-body diagram.
a)
A book is at rest on a tabletop.
b)
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
c)
An egg is free-falling from a nest in a tree. Neglect air resistance.
d)
A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.
79.

Consider this situation: A book is at rest on a table. Which of these forces act upon the book?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

80.

Consider this situation: A magic worm named Big Bird hangs from the Scull's ceiling. Which of these forces act upon Big Bird?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

81.

Consider this situation: A football is moving through the sky as a projectile. Which of these forces act upon the football?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

82.

Consider this situation: A bucket of water is being pulled by a rope out of a well. Which of these forces act upon the bucket?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

83.

Consider this situation: A box is pushed across the kitchen floor. Which of these forces act upon the box?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

84.

Consider this situation: A hockey puck is slowing down as it moves across the ice. Which of these forces act upon the puck?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

85.

Consider this situation: A superhero stops a box sliding towards her. Which of these forces act upon the box?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

86.

Consider this situation: Landscapers drag a tree stump across the lawn with a rope. Which of these forces act upon the tree stump?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

87.

Consider this situation: A child slides down a slide. Which of these forces act upon the child?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

88.

Consider this situation: A tootsie roll is falling. Which of these forces act upon the tootsie roll?

a)

Normal Force

b)

Weight Force

c)

Applied Force

d)

Friction Force

e)

Tension Force

89.
If you increase the mass on an object, its acceleration
a)
decreases
b)
stays the same
c)
also increases
d)
stops
90.
How much force is needed to accelerate a 3kg skateboard at 5m/s2. 
a)
8N
b)
1.6N
c)
0.6N
d)
15N
91.
How much force is needed to accelerate a 25kg bowling ball at 2m/s2. 
a)
50N
b)
5N
c)
12.5N
d)
100N
92.
If a 2kg bird is pushed by the wind with a force of 2N, how fast does the bird accelerate?
a)
1 m
b)
2 m/s2
c)
4m/s2
d)
1 m/s2
93.
In a car accident, a passenger not wearing a seat belt may crash through a windshield because of his or her inertia.
a)
False
b)
True
94.
An object will remain at rest unless a balanced force acts upon it.
a)
False
b)
True
95.
Newton's law of motion describes the relationship of force, mass, and acceleration. Write the equation.
a)
M=F/A
b)
F=MA
c)
A= F/M
d)
All of the above
96.
If you increase the force on an object, its acceleration? 
a)
decreases
b)
stays the same
c)
also increases
d)
stops
97.
What is the acceleration of a 50 kg object pushed with a force of 500 newtons?
a)
100 m/s2
b)
25,000 m/s2
c)
10 m/s2
d)
25 m/s2
98.
The law of inertia is also known as which law of motion?
a)
Newtons first law of motion. 
b)
Newtons second law of motion. 
c)
Newtons third law of motion. 
d)
Inertia has nothing to do with the laws of motion. 
99.
A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2.  What is the mass of the object?
a)
100kg 
b)
1,250kg
c)
50kg
d)
5kg
100.
The classes are playing tug of war. Barsoum’s room pulls to the left with a force of 45 N. Coach Camacho's room pulls to the right with a force of 50 N. What is the net force? And who won?
a)
5N right. Coach Comacho's Class won.
b)
5N Left. Barson's class won. 
c)
95N and Coach Comacho's class won. 
d)
95N and Barson's class won.

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