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Forces Review

Total questions: 22

Worksheet time: 28mins

Name
Class
Date
1.
______ forces affect the motion of an object by speeding it up, slowing it down, or changing the direction of it.
a)
Balanced
b)
Strong
c)
Unbalanced
d)
WeaK
2.
Which law of motion states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force?
a)
Newton's 1st Law of Motion
b)
Newton's 2nd Law of Motion
c)
Newton's 3rd Law of Motion
3.
Which law of motion is explained by the equation:
Force = Mass x Acceleration
a)
Newton's 1st Law of Motion
b)
Newton's 2nd Law of Motion
c)
Newton's 3rd Law of Motion
4.
As the force applied to an object increases, its acceleration______
a)
decreases
b)
increases
c)
stays the same
d)
does not exist
5.

Is the object in equillibrium?

a)

Yes

b)

No

c)

Not enough information

6.

If the object in this picture is in equilibrium, What is the force of friction?

a)

0

b)

12

c)

8

d)

4

7.

A hiker pushed on a large rock, but it did not move. He pushed 300 N to the left. How much force does he feel from the rock?

a)

Less than 300

b)

300

c)

More then 300

8.

The free body diagram of four boxes are shown below. Which box is in equilibrium?

a)
b)
c)
d)
9.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law 
c)
Newtons 3rd law 
d)
Newtons 2nd law
10.
A 20 kg bike accelerates at 10 m/s2.  what was the force?
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
11.

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

a)

20 m/s2

b)

0.5 m/s2

c)

2 m/s2

d)

120 N

12.

The unit "kg" kilograms, is a measurement of..

a)

distance

b)

gravity

c)

time

d)

mass

13.

What unit do we use to indicate a measurement of Force?

a)

kg (kilograms)

b)

Watts (W)

c)

Newtons (N)

d)

m/s2

14.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
Forces of the table pushing up and gravity pulling down are balanced
15.

What is the net force on this object?

a)

80 N West

b)

80 N East

c)

40 N West

d)

40 N East

16.
What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N? 
a)
0.78
b)
0.51
c)
0.78 N
d)
0.58 N
17.

A ball with mass m is struck by a bat having a mass of 9m. How does the force exerted by the bat on the ball compare to the force exerted by the ball on the bat?

a)

The force of the bat on the ball is less than the force of the ball on the bat.

b)

The force of the bat on the ball is the same as the force of the ball on the bat.

c)

The force of the bat on the ball is greater than the force of the ball on the bat.

18.
What is the force that causes objects to fall to Earth?
a)
Air resistance
b)
Gravity
c)
Water resistance
d)
Pressure
19.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
20.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
21.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
22.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force