Free Printable Understanding Newton's Second Law

1.

What is the formula for Newton's Second Law of Motion?

a)

$F = m \times v$

b)

$F = m \times a$

c)

$F = m + a$

d)

$F = \frac{m}{a}$

2.

Which unit is used to measure force in the International System of Units (SI)?

a)

Kilogram

b)

Newton

c)

Meter

d)

Joule

3.

If the net force on an object is zero, what is the acceleration of the object?

a)

Zero

b)

One

c)

Equal to its mass

d)

Infinite

4.

What does the "m" represent in the equation $F = m \times a$ ?

a)

Mass

b)

Momentum

c)

Motion

d)

Meter

5.

If a 2 kg object experiences a net force of 10 N, what is its acceleration?

a)

$2 \, \text{m/s}^2$

b)

$5 \, \text{m/s}^2$

c)

$10 \, \text{m/s}^2$

d)

$20 \, \text{m/s}^2$

6.

A force of 15 N is applied to a 3 kg object. What is the acceleration of the object?

a)

$3 \, \text{m/s}^2$

b)

$5 \, \text{m/s}^2$

c)

$45 \, \text{m/s}^2$

d)

$0.2 \, \text{m/s}^2$

7.

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

a)

It doubles

b)

It is halved

c)

It stays the same

d)

It becomes zero

8.

A 4 kg object accelerates at $3 \, \text{m/s}^2$ . What is the net force acting on it?

a)

$7 \, \text{N}$

b)

$12 \, \text{N}$

c)

$1.33 \, \text{N}$

d)

$0.75 \, \text{N}$

9.

A 10 N force is applied to a 5 kg object. What is the acceleration?

a)

$0.5 \, \text{m/s}^2$

b)

$2 \, \text{m/s}^2$

c)

$5 \, \text{m/s}^2$

d)

$50 \, \text{m/s}^2$

10.

If a 6 kg object accelerates at $2 \, \text{m/s}^2$ , what is the net force acting on it?

a)

$3 \, \text{N}$

b)

$8 \, \text{N}$

c)

$12 \, \text{N}$

d)

$18 \, \text{N}$

11.

A student pushes a box with a force of 20 N, causing it to accelerate at $4 \, \text{m/s}^2$ . What is the mass of the box?

a)

$5 \, \text{kg}$

b)

$8 \, \text{kg}$

c)

$16 \, \text{kg}$

d)

$80 \, \text{kg}$

12.

A 12 kg object is acted upon by a net force of 36 N. What is its acceleration?

a)

$3 \, \text{m/s}^2$

b)

$0.33 \, \text{m/s}^2$

c)

$48 \, \text{m/s}^2$

d)

$432 \, \text{m/s}^2$

13.

A 2 kg cart is pushed with a net force of 8 N. If the force is suddenly doubled, what will be the new acceleration?

a)

$2 \, \text{m/s}^2$

b)

$4 \, \text{m/s}^2$

c)

$6 \, \text{m/s}^2$

d)

$8 \, \text{m/s}^2$

14.

A 5 kg object is accelerating at $3 \, \text{m/s}^2$ . If the net force is increased to 30 N, what will be the new acceleration?

a)

$3 \, \text{m/s}^2$

b)

$5 \, \text{m/s}^2$

c)

$6 \, \text{m/s}^2$

d)

$15 \, \text{m/s}^2$

15.

A 10 kg sled is pulled with a net force of 50 N. Calculate its acceleration and explain how changing the mass would affect the acceleration if the force stays the same.

a)

$5 \, \text{m/s}^2$ ; Increasing mass decreases acceleration

b)

$0.2 \, \text{m/s}^2$ ; Increasing mass increases acceleration

c)

$5 \, \text{m/s}^2$ ; Increasing mass increases acceleration

d)

$0.2 \, \text{m/s}^2$ ; Increasing mass decreases acceleration

16.

A student observes that when she pushes two boxes of different masses with the same force, the lighter box accelerates more. Use Newton's Second Law to explain why this happens.

a)

The lighter box has less friction.

b)

The lighter box has less mass, so for the same force, it has greater acceleration.

c)

The heavier box is larger in size.

d)

The force is not enough to move the heavier box.

17.

A 3 kg object is acted upon by two forces: 10 N to the right and 4 N to the left. What is the acceleration and in which direction?

a)

$2 \, \text{m/s}^2$ to the right

b)

$2 \, \text{m/s}^2$ to the left

c)

$4.67 \, \text{m/s}^2$ to the right

d)

$14 \, \text{m/s}^2$ to the left

18.

A 7 kg object is accelerated at $2 \, \text{m/s}^2$ by a net force. If the mass is reduced to 3.5 kg and the same force is applied, what will be the new acceleration?

a)

$1 \, \text{m/s}^2$

b)

$2 \, \text{m/s}^2$

c)

$4 \, \text{m/s}^2$

d)

$14 \, \text{m/s}^2$

19.

A 6 kg object is pulled with a net force of 18 N. If friction adds an additional 6 N in the opposite direction, what is the new acceleration?

a)

$2 \, \text{m/s}^2$

b)

$3 \, \text{m/s}^2$

c)

$4 \, \text{m/s}^2$

d)

$6 \, \text{m/s}^2$

20.

A 4 kg object is acted upon by a net force of 16 N. If the force is reduced by half, what will be the new acceleration? Show your reasoning.

a)

$2 \, \text{m/s}^2$

b)

$4 \, \text{m/s}^2$

c)

$8 \, \text{m/s}^2$

d)

$16 \, \text{m/s}^2$

21.

What is the net force?

a)

5 N

b)

45 N to the left

c)

5 N to the right

d)

45 N to the right

22.

What is a force?

a)

the PUSH or PULL on an object

b)

The MOTION an object creates

c)

The objects HITTING one another

d)

Going REALLY FAST

23.

Which one is balanced?

a)

top

b)

bottom

c)

both

24.

What is the FORCE?

a)

5 N

b)

10 N

c)

400 N

d)

0 N

25.

What is the unit for FORCE?

a)

N (Newtons)

b)

lbs (pounds)

c)

g (grams)

d)

m/s (meters per second)

26.

If there are two forces going in the SAME direction, you would ...?

a)

(-) Subtract the forces

b)

(+) Add the forces

c)

Neither

d)

(x) Multiply

27.

The FORCE that PULLS things down or back to EARTH.

a)

Speed

b)

Gravity

28.

If the net force is 0 the object will ...

a)

CHANGES motion

b)

STAY the SAME, NOT Move

29.

What is the net force?

a)

17 N Right

b)

3 N Right

c)

3 N Left

d)

17 N Left

30.

Calculate the net force shown in the diagram?

a)

41 N

b)

25 N

c)

16 N

d)

9 N

31.

Look at the diagram. What would be the direction of the motion ?

a)

movement to the left

b)

movement to the right

c)

no movement

32.

If there are two forces going in the opposite direction how would you find the net force?

a)

Subtract

b)

Add

c)

Neither

d)

Multiply

33.

If both people are exerting a force of 30 N, what is the net force?

a)

30 N

b)

60 N

c)

300 N

d)

0 N

34.

If the boy is pulling with a force of 10 N and the girl is pushing with a force 20 N, what is the net force on the box?

a)

10 N

b)

20 N

c)

30 N

d)

0 N

35.

A pattern of disturbance that travels through a substance from one location to another location.

a)

Wave

b)

Amplitude

c)

Wave Crest

d)

Wave Trough

e)

Wave Height

36.

The distance from the wave crest or trough to the equilibrium Level

a)

Wave

b)

Amplitude

c)

Wave Crest

d)

Wave Trough

e)

Wave Height

37.

The highest part of a wave.

a)

Wave

b)

Amplitude

c)

Wave Crest

d)

Wave Trough

e)

Wave Height

38.

The lowest part of a wave.

a)

Wave

b)

Amplitude

c)

Wave Crest

d)

Wave Trough

e)

Wave Height

39.

The vertical distance between the wave trough and the wave crest.

a)

Wave

b)

Amplitude

c)

Wave Crest

d)

Wave Trough

e)

Wave Height

40.

distance between two consecutive wave crests or between two consecutive wave troughs.

a)

Wave

b)

Amplitude

c)

Wave Length

d)

Wave Trough

e)

Wave Height

41.

The number of waves passing a fixed point in a specified period of time

a)

Wave Height

b)

Wave Length

c)

Wave Frequency

d)

Wave Trough

42.

The part of a wave that the particles are more pushed together.

a)

Compression

b)

Rarefaction

c)

Particles

d)

Wave

43.

The part of a wave that the particles are pulled apart

a)

Compression

b)

Rarefaction

c)

Particles

d)

Wave

44.

Are the small piece of matter that make up an object.

a)

Compression

b)

Rarefaction

c)

Particles

d)

Wave

45.

The frequency of infrared waves is..

a)

10¹²Hz

b)

10²⁰ Hz

c)

10⁴ Hz

d)

10¹⁵ Hz

46.

What is the correct order of the visible light spectrum starting with the longer wavelength?

a)

Red, yellow, orange, blue, violet, indigo

b)

Violet, indigo, blue, green, yellow, orange, red

c)

Green, yellow, blue, indigo, red, orange

d)

Red, orange, yellow, green, blue, indigo, violet

47.

What is an example of a wave with a long wavelength and low frequency?

a)

Gamma rays

b)

Infrared

c)

Radio

d)

Visible light

48.

What gases are in the unknown mixture?

a)

Gas B & Gas D

b)

Gas C & Gas B

c)

Gas A & Gas D

d)

Gas D & Gas C

49.

An example of a wave with a short wavelength, high frequency, and high energy is a

a)

X-ray

b)

Microwave

c)

Visible light wave

d)

Infrared wave

50.

What waves have the lowest energy?

a)

Gamma rays

b)

Visible light waves

c)

Radio waves

d)

X rays

51.

Which color has the longest wavelength?

a)

Yellow

b)

Red

c)

Green

d)

Purple

52.

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41 x 10⁹Hz. Using the electromagnetic spectrum provided, investigators were most likely using a telescope that detects -

a)

microwaves

b)

visible light

c)

x-rays

d)

gamma rays

53.

Scientists observed a celestial object emitting a wavelength of 3 x 10^-10m. What type of telescope did the scientists have to use to view this?

a)

Radio wave

b)

Infrared ray

c)

X-ray

d)

Gamma Ray

54.

Scientists observed a celestial object emitting waves with a frequency of 1.41 x 10⁸Hz. What type of telescope did the scientists have to use to view this object?

a)

Radio wave

b)

Microwave

c)

X-ray

d)

Ultraviolet wave

55.

The frequency of an x-ray is --

a)

1.41 x 10^-10 Hz

b)

1.41 x 10¹⁸ Hz

c)

1.41 x 10¹⁰ Hz

d)

1.41 x 10^-18 Hz

56.

The wavelength of an infrared ray is --

a)

10^-5m

b)

10¹² Hz

c)

10⁵ m

d)

10^-12 Hz

57.

Scientists observed a celestial object emitting a wavelength of 3 x 10³m. What type of telescope did the scientists have to use to view this?

a)

Radio wave

b)

Infrared ray

c)

X-ray

d)

Gamma Ray

58.

Element or Compound?
H₂O

a)

Element

b)

Compound

59.

Element or Compound?
H₂SO₄

a)

Element

b)

Compound

60.

Element or Compound?
Au

a)

Element

b)

Compound

61.

Element or Compound?
Ru

a)

Element

b)

Compound

62.

Element or Compound?
CF₃CO2_H

a)

Element

b)

Compound

63.

Element or Compound?
O₂S(OH)₂

a)

Element

b)

Compound

64.

Element or Compound?
As

a)

Element

b)

Compound

65.

Element or Compound?
Oxygen

a)

Element

b)

Compound

66.

Element or Compound?
NiSO₄

a)

Element

b)

Compound

67.

Element or Compound?
Salt (NaCl)

a)

Element

b)

Compound

68.

Element or Compound?
H₂SO₄

a)

Element

b)

Compound

69.

Element or Compound?
Au

a)

Element

b)

Compound

70.

Element or Compound?
As

a)

Element

b)

Compound

71.

Element or Compound?
NiSO₄

a)

Element

b)

Compound

72.

Element or Compound?
Salt (NaCl)

a)

Element

b)

Compound

73.

Which of the following is not a compound?

a)

HCl

b)

Cl

c)

NaCl

d)

CO2

74.

Which of the following represents an element?

a)

H₂O

b)

H₂

c)

NaCl

d)

CaCO₃

75.

What cannot be broken down into other substances?

a)

Compound

b)

Mixture

c)

Solids

d)

Element

76.

What is made up two or more elements that are chemically combined?

a)

Element

b)

Mixture

c)

Compound

d)

Solids

77.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture

78.

This picture represents which of the following?

a)

element

b)

compound

c)

mixture

79.

A pure substance containing only one kind of atom.

a)

element

b)

mixture

c)

compound

80.

Element or Compound?

One capital letter

a)

Element

b)

Compound

81.

Element or Compound?

C₆H₁₂O₃

a)

Element

b)

Compound

82.

Element or Compound?

2 or more capital letters

a)

Element

b)

Compound

83.

How many elements?

He₃

a)

1

b)

2

c)

3

d)

4

84.

How many elements?

Cl₂

a)

1

b)

2

c)

3

d)

4

85.

How many elements?

BrO₆

a)

1

b)

2

c)

3

d)

4

86.

How many elements?

NaCl

a)

1

b)

2

c)

3

d)

4

87.

How many elements?

SLi₃BaO₂

a)

1

b)

2

c)

3

d)

4

88.

What is the difference between CO and Co?

a)

They are the same.

b)

CO is an element and Co is a compound.

c)

CO is a compound and Co is an element.

89.

All of the following are elements EXCEPT:

a)

carbon

b)

nitrogen

c)

oxygen

d)

water

90.

Carbon (C) is considered an element while Carbon Dioxide (CO₂) is considered a compound. That is because Carbon Dioxide is -

a)

a gas

b)

made of two elements

c)

given off by plants

d)

useful to us

91.

How many atoms are there TOTAL in:

H₂SO₄

a)

6

b)

5

c)

7

d)

3

92.

How many Carbon atoms are in this compound?

H₂C₃O₄N₅

a)

2

b)

3

c)

4

d)

5

93.

How many atoms of Hydrogen are in this compound

a)

1

b)

2

c)

3

d)

4

Understanding Newton's Second Law

Total questions: 93

Worksheet time: 1hrs 10mins

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