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Newtonian Mechanics

Total questions: 102

Worksheet time: 2hrs 30mins

Name
Class
Date
1.

What is the net force?

a)

40 N left

b)

0 N Balalnced

c)

400 N right

d)

40 N right

2.

What is the net force?

a)

30 N left

b)

25 N right

c)

5 N left

d)

55 N right

3.

Which could be an example of an unbalanced force?

a)

A plate sitting on a dining table

b)

A ball at the top of a hill that is not moving

c)

Earth orbiting the Sun 

d)

A baseball that has been thrown to home plate.

4.

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

a)

60 N right

b)

10 N left

c)

60 n right

d)

50 N left

5.

What is the net force?

a)

30 N left

b)

25 N right

c)

5 N left

d)

55 N right

6.

The sum of all forces acting on an object and direction

a)

Contact Force

b)

Balanced Force

c)

Unbalanced Force

d)

Net Force

7.

Balanced or Unbalanced?

a)

Balanced 

b)

Unbalanced

8.

Are forces balanced or unbalanced when a marble rolls down a ramp?

a)

Balanced

b)

Unbalanced

9.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pascal

d)

Newton

10.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

11.

A push or pull that causes a change in motion

a)

Friction

b)

Gravity

c)

Force

d)

Mass

12.

Examples of forces that make something move are...

a)

pushes

b)

pulls

c)

both pushes and pulls

13.

If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?

a)

150 Newtons

b)

15 Newtons

c)

150 kilograms

d)

100 kilograms

14.

Which of the following objects has the least acceleration?

a)

a. an empty shopping cart pushed with a hard force

b)

b. a full shopping cart pushed with a hard force

c)

c. an empty shopping cart pushed with a light force

d)

d. a full shopping cart pushed with a light force

15.

F = mass x ____

a)

force

b)

velocity

c)

acceleration

16.

45 m/s2 is the... 

a)

Mass

b)

Force 

c)

Acceleration

d)

weight

17.

What Unit do we Measure Force in? 

a)

Newtons

b)

Joules

c)

grams

d)

pounds

18.

given 20 N,  2 Kg, you can know a (acceleration) is 

a)

20N/2 kg=10N/kg

b)

20Nx2kg=40N/kg

c)

2kg/20N=0.1kg/N

d)

none of the above

19.

given 10 m/s2, 5 kg, and 50N, what is the mass

a)

50 N

b)

5 kg

c)

2 kg

d)

5 N/kg

20.

What is the net force?

a)

17 N Right

b)

3 N Right

c)

3 N Left

d)

17 N Left

21.

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2

a)

102.04 n

b)

9,800 n

c)

980 n

d)

103 n

22.

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

23.

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

24.

A 50 kg skater pushed by a friend accelerates 5 m/s2.  How much force did the friend apply? The answer to this question is most likely (HINT: Look at the units!!!) - 

a)

250 N

b)

250 m/s2

c)

250 kg 

25.

A force of 250 N is applied to an object that accelerates at a rate of 5 m/s2.  What is the mass of the object? The answer to this question is most likely (HINT: Look at the units!!!) - 

a)

50 N

b)

50 m/s2

c)

50 kg

26.

If an object mass =30 Kg on the Earth, what would be it's weight on Earth?

a)

30 N

b)

300 kg

c)

3000N

d)

300 N

27.

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

28.

Joe and his boat have a mass of 130 kg together.  The boat weighs 420 N.   a)  What is the mass of the boat?

a)

1300N

b)

88N

c)

88Kg

d)

42Kg

29.

A parachutist has a mass of 80 kg. His parachute has a mass of 10 kg.'   What is their combined weight?

a)

800N

b)

100N

c)

90N

d)

900N

30.

An airplane is turning to approach the runway at the airport. Are the forces balanced or unbalanced?

a)

balanced

b)

unbalanced

31.

Balanced?

a)

Yes

b)

No

32.

Which one is balanced?

a)

top

b)

bottom

c)

both

33.

Which team wins?

a)

Top

b)

Bottom

c)

Both

34.

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

a)

Balanced

b)

Unbalanced

35.

F=ma

a)

Newton's
1st
Law of Motion

b)

Newton's
2nd
Law of Motion

c)

Newton's
3rd
Law of Motion

36.

When an unbalanced force pushes against an object what happens

a)

will change velocity

b)

change speed and direction

c)

Increase its mass

d)

Nothing

37.

What it the equation for the second law of motion

a)

F/m=a

b)

M/FV

c)

F=MA

d)

M=AF

38.

______ is the rate at which your velocity changes?

a)

Acceleration

b)

Mass

c)

Direction

d)

Velocity

39.

Accelerations is produced by

a)

Velocities

b)

Acceleration

c)

Masses

d)

Forces

40.

Which options below would be the best name for Newton's Second law

a)

The law of inertia

b)

The law of mass and force

c)

The law of change in speed

d)

The law of velocity

41.

What is an unbalanced force? two objects where...

a)

One has more force than the other

b)

they both have equal forces

c)

They have no forces

42.

Who came up the laws of motion

a)

Mark Twain

b)

Elmo's fish

c)

Issac Newton

d)

Leonardo De Vinci

43.

It is easier to push a car than a truck

a)

True

b)

False

44.

What is the change in velocity called

a)

Speed

b)

Force

c)

Direction

d)

Acceleration

45.

What is force measured in

a)

Newton's

b)

Pounds

c)

Kilograms

d)

Inches

46.

If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?

a)

150 Newtons

b)

15 Newtons

c)

150 kilograms

d)

100 kilograms

47.

Why is the net force 0 in the image?

a)

Because the elephants are the same size

b)

Because they are both pulling the same amount of force in opposite directions

c)

Because they are elephants

d)

Because they are pulling away from each other.

48.

The stronger the force, the ________ the acceleration

a)

Stronger

b)

Weaker

c)

Both

49.

net force 10N mass 2kg Acceleration ?

a)

?

b)

5 M/s

c)

5 M/s/s/s

d)

5 m/s/s

50.

What is the 2nd Law of Motion equation?

a)

a=net force/mass

b)

cat

c)

F=mg

d)

F=(mv f- mv i)/t

51.

net force 10N mass 2kg Acceleration ?

a)

?

b)

5 M/s

c)

5 M/s/s/s

d)

5 m/s/s

52.

F=MA
An object of mass 10 kg is accelerated upward at 2 m/s2.  What force is required? 

a)

20 N

b)

2 N

c)

5 N

d)

0 N

53.

If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?

a)

150 Newtons

b)

15 Newtons

c)

150 kilograms

d)

100 kilograms

54.

You pull horizontally on a 50-kg crate with a force of 450 N and the friction force on the crate is 250 N.  The acceleration of the crate is

a)

2 m/s2

b)

4 m/s2

c)

I don't know?

d)

14 m/s2

55.

What is the second law of motion?

a)

The state of motion of an object does not change as long as the net force acting on the object is 0.

b)

Friction causes an object to slow down and affect the motion.

c)

The acceleration of an object is equal to the net force acting upon it divided by the object’s mass.

d)

The measure of inertia relative to the object’s mass is the object’s acceleration.

56.

When the force on a car is doubled, the acceleration is doubled.

a)

Newton's
1st
Law of Motion

b)

Newton's
2nd
Law of Motion

c)

Newton's
3rd
Law of Motion

57.

If the mass of an object is doubled but the force applied remains the same, what happens to the acceleration?

a)

It halves

b)

It becomes zero

c)

It doubles

d)

It stays the same

58.

A 20 kg box is pushed with a force of 100 N. What is its acceleration?

a)

0.2 m/s2

b)

5 m/s2

c)

2 m/s2

d)

10 m/s2

59.

Which of the following best describes Newton's Second Law of Motion?

a)

Objects at rest stay at rest

b)

Force equals mass times acceleration

c)

For every action there is an equal and opposite reaction

d)

Energy cannot be created or destroyed

60.

What happens to the acceleration of an object if the force applied to it is tripled while its mass remains constant?

a)

It stays the same

b)

It halves

c)

It triples

d)

It becomes one-third

61.

Which of the following best describes an unbalanced force acting on an object?

a)

The object remains at rest

b)

The object changes its motion

c)

The object moves at a constant velocity

d)

The forces cancel each other out

62.

If a 20 kg object experiences an acceleration of 2 m/s2, what is the net force acting on it?

a)

40 N

b)

22 N

c)

10 N

d)

18 N

63.

What is the net force

a)

10 N

b)

0 N

c)

25 N

d)

1 N

64.

What is the net force?

a)

5000 N right

b)

4000 N right

c)

40 N left

d)

4000 N left

65.

Calculate the net force.

a)

5 N

b)

10 N

c)

45 N

d)

500 N

66.

Calculate Net Force.

a)

6 N left

b)

14 N right

c)

10 N right

d)

3 N left

67.

Look at the diagram showing a box with two forces acting on it. A 10 N force pushes to the right, and a 10 N force pushes to the left. What is the net force (total force) on the box?

a)

10 N

b)

0 N

c)

25 N

d)

1 N

68.

What is the definition of Net Force?​ ​ (a)  

Choose from the below words

Equal and Opposite forces

The distance traveled by an object

The total forces exerted on an object

69.

Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?


(a)  

Choose from the below words

60 N unbalanced to the right

60 N balanced to the right

10 N balanced to the right

10 N unbalanced to the right

70.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

71.

Calculate the net force of the object in the image shown.

a)

20N

b)

35N

c)

5N

d)

25N

72.

What is the net force?

a)

65 N left

b)

65 N right

c)

35 N left

d)

35 N right

73.

What is the net force?

a)

11 N left

b)

11 N right

c)

3 N left

d)

3 N right

74.

What is the net force?

a)

5.5 N left

b)

5.5 N right

c)

2.5 N left

d)

2.5 N right

75.

How much force is needed to accelerate a 3kg skateboard at 5m/s2.

a)

8N

b)

1.6N

c)

0.6N

d)

15N

76.

How much force is needed to accelerate a 25kg bowling ball at 2m/s2.

a)

50N

b)

5N

c)

12.5N

d)

100N

77.

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

78.

If you increase the force on an object, its acceleration? 

a)

decreases

b)

stays the same

c)

also increases

d)

stops

79.

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

80.

Calculate the net force of the object in the image shown.

a)

20N

b)

35N

c)

5N

d)

25N

81.

What is the weight of a 14 kg child on Earth (g=10 m/s/s)?

a)

14 kg

b)

140 N

c)

14 N

d)

140 kg

82.

The unit of mass is

(a)  

83.

when mass is constant force and accleration are...

a)

directly proportional

b)

indirectly proportional

c)

inversely proportional

d)

proportional

84.

when force is constant mass and accleration are...

a)

directly proportional

b)

indirectly proportional

c)

inversely proportional

d)

proportional

85.

As the mass of an object increases, the amount of gravitational force it exerts:

a)

increases.

b)

decreases.

c)

stays the same.

86.

How much force is needed to accelerate a 3kg skateboard at 5m/s2. 

a)

8N

b)

1.6N

c)

0.6N

d)

15N

87.

How much force is needed to accelerate a 25kg bowling ball at 2m/s2. 

a)

50N

b)

5N

c)

12.5N

d)

100N

88.

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

89.

Which is an unbalance force?

a)

A book sitting on a desk.

b)

A ball moving in a constant speed in the same direction. 

c)

While doing a mannequin challenge Jose suddenly falls over when a bug lands on his nose. 

d)

Every student in class is sitting perfectly still at their desks.

90.

Is it BALANCED? 

a)

Yes

b)

No

91.

What is the unit for FORCE? 

a)

N (Newtons)

b)

lbs (pounds)

c)

g (grams)

d)

m/s (meters per second)

92.

Is this a balanced or unbalance force?

a)

Balanced

b)

Unbalanced

c)

Neither one

d)

Both

93.

Calculate the net force of the object.

a)

10N

b)

2N

c)

15N

d)

5N

94.

What is a PUSH or PULL of an object?

a)

Motion

b)

Force

c)

Friction

d)

Gravity

95.

For every action, there is an equal and opposite reaction.

a)

Newton's
1st
Law of Motion

b)

Newton's
2nd
Law of Motion

c)

Newton's
3rd
Law of Motion

96.
a)
1st
b)
2nd
c)
3rd
97.

Are forces balanced or unbalanced when a marble speeds up rolling down a ramp?

a)

Balanced

b)

Unbalanced

98.

A push or pull that causes a change in motion (acceleration)

a)

Friction

b)

Gravity

c)

Force

d)

Mass

99.

If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?

a)

150 Newtons

b)

15 Newtons

c)

150 kilograms

d)

100 kilograms

100.

Which of the following objects has the least acceleration?

a)

a. an empty shopping cart pushed with a hard force

b)

b. a full shopping cart pushed with a hard force

c)

c. an empty shopping cart pushed with a light force

d)

d. a full shopping cart pushed with a light force

101.

F = mass x ____

a)

force

b)

velocity

c)

acceleration

102.

45 m/s2 is the... 

a)

Mass

b)

Force 

c)

Acceleration

d)

weight

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