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Forces Test Review

Total questions: 20

Worksheet time: 35mins

Name
Class
Date
1.
What is the net force and the direction of movement?
a)
50 Newtons, Left
b)
50 Newtons, Right
c)
500 Newtons, RIght
d)
450 Newtons, LEft
2.
What is Newtons 1st law of motion?
a)
Force= Mass multiplied by acceleration 
b)
An object at rest stays at rest unless acted on an unbalanced force. (inertia)
c)
For every action there is a equal and opposite  re-action.
d)
law of gravity 
3.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
law of gravity 
c)
Newtons 4th law 
d)
Newtons 2nd law
4.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law 
c)
Newtons 3rd law 
d)
Newtons 2nd law
5.
A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia?
a)
 m = 3.0 kg
b)
m = 4.0 kg 
c)
m = 3.0 ml 
d)
m = 30.0 g
6.
Determine the accelerations that result when a 12-N net force is applied to a 3-kg object. 
a)
3 m/s
b)
4 ft/s 
c)
13 m/s
d)
4 m/s 
7.
For every action there is a equal and opposite...
a)
action
b)
movement 
c)
re-action 
d)
Newtons law of inertia 
8.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 
a)
velocity
b)
gravity
c)
net force
d)
distance
9.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
10.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
11.
Determine the momentum of 1000-kg car moving southward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s south
d)
10000 kg * m/s south
12.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
13.

The Coffee cup in the picture is resting on a table. What force(s) are missing from the free body diagram?

a)

No forces are missing

b)

The normal force from the table pushing the cup up.

c)

The normal force form the table pushing the cup down.

d)

The friction force from the table pushing the cup left and right.

14.

The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?

a)

None

b)

Gravity

c)

Gravity and Normal

d)

Gravity, Normal, and Friction

e)

Gravity, Normal, Friction, and Applied

15.

The forces on this chandelier are...

a)

Gravity

b)

Gravity and Normal

c)

Gravity and Tension

d)

Gravity, Tension, Friction, and Applied

16.

The Car in the picture is moving to the right at a constant velocity. Any friction present would be pushing the car to the ...

a)

Up

b)

Right

c)

Down

d)

Left

17.

An Orange falls off a tree and lands on the ground. What force caused the orange to fall?

a)

friction

b)

heat

c)

gravity

d)

wind

18.

A 10 kg, 15 kg, and 20 kg rock are rolling down a hill. Which rock will require the most force to stop?

a)

10 kg rock

b)

15 kg rock

c)

20 kg rock

d)

All 3 rocks will require the same force

19.

The students in Mrs. Hoffman’s class played tug-of-war. The girls pulled in one direction with a force of

150 N. The boys pulled in the opposite direction with a force of 100 N. Who won the game and why did they win?

a)

The boys won because they applied a stronger force to the

rope

b)

The boys and the girls tied because they applied equal

forces to the rope

c)

The girls won because they applied a stronger force to the

rope

d)

Too much force was applied, the rope broke

20.
What Unit do we measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Don't know