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Module 3: Force and Newton's Laws Review

Total questions: 31

Worksheet time: 31mins

Name
Class
Date
1.

F=ma is Newton's ___ Law of Motion

a)

1st

b)

2nd

c)

3rd

d)

Gravitational

2.

Forces acting on an object are said to be ___ when the net force is zero.

a)

centripetal

b)

unbalanced

c)

accelerating

d)

balanced

3.

Air resistance acts in the ________ direction as that of an object in motion.

a)

opposite

b)

same

c)

outside

d)

inside

4.

As two objects move closer together, the gravitational force between them _____.

a)

increases

b)

decreases

c)

does not change

d)

causes the object to repel

5.

Which of the following will create the MOST amount of friction?

a)

a smooth surface moving against a smooth surface

b)

a rough surface moving against a rough surface

c)

a smooth surface moving against a rough surface

6.

Objects fall toward the Earth at a rate of 9.8 m/s/s because of ____.

a)

air resistance

b)

centripetal force

c)

acceleration

d)

gravity

7.

In which direction is centripetal force?

a)

toward the end of the line

b)

toward the outer edge of the curve

c)

toward the center of the circle

d)

toward the outside of the circle

8.

The SI units for measuring acceleration are ___.

a)

grams

b)

m/s2

c)

newtons

d)

millimeters

9.

If gravity is the only force acting on an object, the object is said to be in _________.

a)

free fall

b)

zero force

c)

balanced weight

d)

static force

10.

_____ is a long range force that exists between every object in the universe.

a)

velocity

b)

gravity

c)

acceleration

d)

inertia

11.

For a golf ball to move, a ______ force must be applied.

a)

centripetal

b)

balanced

c)

static

d)

unbalanced

12.

Find the weight of a 14 kg toy tractor on Earth.

W=mg

a)

1.43 N

b)

0.7 N

c)

137.2 N

d)

128.4 N

13.

What is the net force acting on a 1992 kg airplane accelerating at 3 m/s2?

a)

592 N

b)

4928 N

c)

664 N

d)

5976 N

14.

As two objects move farther apart, its gravitational force ___.

a)

increases

b)

decreases

c)

does not change

d)

causes the objects to repel

15.

A combination of all forces acting on an object is ____.

a)

net force

b)

zero force

c)

centripetal force

d)

static force

16.

To every action force, there is a ________ and opposite reaction force, which is Newton's third law of motion.

a)

lesser

b)

equal

c)

nondetermined

d)

unbalanced

17.

_______ is the force that opposes motion between surfaces that touch each other.

a)

acceleration

b)

velocity

c)

momentum

d)

friction

18.

For a book to stay at rest on a desk, the forces acting on the book are said to be _____.

a)

opposite

b)

unbalanced

c)

reactive

d)

balanced

19.

What is the mass of the object that is accelerating at 2 m/s2 with a force of 519 N? F=ma

a)

217.3 kg

b)

1038 kg

c)

259.5 kg

d)

1139 kg

20.

What is the net force on the box if Natalie is pushing east with 32 N of force and Payte is pushing back toward the west with 27 N of force?

a)

5 N east

b)

5 N west

c)

59 N east

d)

59 N west

21.

What is the net force of the box if the child is scooting it to the left with 5 N of force and her dog comes to help push it in the same direction with 3 N of force?

a)

2 N right

b)

2 N left

c)

8 N right

d)

8 N left

22.

What is the gravitational force exerted on a 50 kg object if its weight is 703 N? W=mg

a)

35,150 m/s2

b)

14.06 m/s2

c)

14.49 m/s2

d)

12, 319 m/s2

23.

Newton's First Law of Motion is also known as ......

a)

The Law of Gravity

b)

The Law of Inertia

c)

The Law of Force

d)

The Law of Equal Reactions

24.

The SI unit of force is the ______

a)

kilogram

b)

milliliter

c)

Newton

d)

meters per seconds squared

25.

Which of the following examples will create the LEAST amount of friction?

a)

a smooth surface moving against a smooth surface

b)

a rough surface moving against a rough surface

c)

a smooth surface moving against a rough surface

26.

If an object's mass increases, the acceleration of the object will ____.

a)

decrease

b)

stay the same

c)

increase

d)

equal the mass

27.

The gravity between two objects, regardless of their location, will never be ____.

a)

greater than 1 N

b)

equal

c)

zero

d)

friction

28.

The term that refers to the tendency of an object to resist any change in motion is _____

a)

acceleration

b)

velocity

c)

force

d)

inertia

29.

An object moves at a constant ______ unless acted upon by an ________ force

a)

mass; inside

b)

mass; outside

c)

velocity; inside

d)

velocity; outside

30.

The laws describing how forces affect the motion were developed by ______.

a)

Sir Isaac Newton

b)

Isaac Norton

c)

George Mendelev

d)

Jane Goodall

31.

If Joe is pushing on a refrigerator with 60 N of force and Henry is pulling on the refrigerator with 70 N of force, what is the net force being applied to the refrigerator?

a)

130 N

b)

10 N

c)

zero

d)

4200 N