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Forces Basics

Total questions: 30

Worksheet time: 22mins

Name
Class
Date
1.

What do we call a force that has a net force of zero Newtons and the object does not change its motion?

a)

balanced force

b)

unbalanced force

c)

acceleration force

d)

net force

2.

What do we call a force that causes an object to accelerate?

a)

net force

b)

moving force

c)

acceleration force

d)

unbalanced force

3.

What is the measure of force?

a)

Newtons

b)

Light years

c)

Inches

d)

Gallons

4.

What is the unit for FORCE?

a)

N (Newtons)

b)

lbs (pounds)

c)

g (grams)

d)

m/s (meters per second)

5.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
6.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
7.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
8.

What type of force was at work in the parachute?

a)

elastic spring force

b)

frictional force (air resistance)

c)

magnetic force

d)

gravitational force

9.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
10.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
11.

Balanced Force

a)

When forces are balanced, there is no change in motion

b)

When two forces act upon each other in opposite directions, and they are both the same size.

c)

Equal in size and opposite in direction

d)

Occurs when objects change in motion and can happen in two different ways.

12.

Which image is an example of a balanced force?

a)

Image 1

(Top Image)

b)

Image 2

(Bottom Image)

13.

What force is shown in the picture?

a)

gravity

b)

applied

c)

normal

d)

friction

14.

What picture shows a normal force?

a)
b)
c)
d)
15.

What force is shown in the picture?

a)

friction

b)

applied

c)

normal

d)

gravity

16.

What force is shown by the red arrow?

a)

friction

b)

bouyancy

c)

normal

d)

gravity

17.

What force is exerted on you when you stand on a bathroom scale? 

a)
 Applied Force
b)
Normal Force
c)
Gravitational Force
d)
 Electrical Force
18.

Jenny decided to move her dresser across her room to the opposite wall. She tried pushing it, but found that the dresser would not move. What force prevented Jenny from moving her dresser?

a)

gravity

b)

normal force

c)

tension force

d)

frictional force

19.

This type of force is when one object pushes or pulls on another object through contact

a)

applied

b)

gravity

c)

magnetic

d)

tension

20.

What are some examples of contact forces? Select all that apply.

a)

Friction

b)

Gravity

c)

Normal Force

d)

Magnetic Force

e)

Air Resistance

21.

What are some examples of long range forces? Select all that apply.

a)

Gravity

b)

Friction

c)

Normal Force

d)

Applied Force

22.

This force is transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting on opposite ends.

a)

Normal Force

b)

Tension

c)

Gravity

d)

Spring Force

23.

A football is flying through the air. What forces are acting on the football? Select all that apply.

a)

Gravity

b)

Normal Force

c)

Applied Force

d)

Air Resistance

e)

Tension

24.

A person pulls a sled with a rope. What forces are acting on the sled? Select all that apply.

a)

Gravity

b)

Normal Force

c)

Applied Force

d)

Friction

e)

Tension

25.

You push a desk across the floor. What forces are acting on the desk? Select all that apply.

a)

Friction

b)

Applied Force

c)

Normal Force

d)

Gravity

26.

What is the name of the missing force?

a)

frictional force

b)

normal force

c)

gravity

d)

applied force

27.

A leftward force is applied to a crate to push it across the floor at a constant speed. Which is the correct force diagram?

a)
b)
c)
d)
28.

A hockey puck glides to the right across the ice at a constant speed [AFTER applied force, assume no friction]. Choose the right force diagram below.

a)

b)

c)

d)

29.

A downward-moving skydiver who has just opened the parachute is slowing down. Which force diagram shows this sitation?

a)
b)
c)
d)
30.

A leftward force is applied to a crate to push it across the floor at a constant speed. Which is the correct force diagram?

a)
b)
c)
d)