Quiz about Forces and Net Force

Question 1

The unit used to measure force.

Accepted Answer

Newton

Answer

force

Answer

net force

Question 2

The combination of all forces acting on an object.

Accepted Answer

net force

Answer

Newton

Answer

force

Question 3

The combination of all forces acting on an object.

Accepted Answer

net force

Answer

Newton

Answer

force

Question 4

Which of the following choices best represents force?

Accepted Answer

a push or a pull acting on an object

Answer

a push or a pull always causing motion

Answer

a push or a pull always causing acceleration

Answer

a push or a pull acting without an object

Question 5

When the net forces equal 0 N, they are which of the following?

Accepted Answer

balanced

Answer

unbalanced

Answer

a push

Answer

a pull

Question 6

Which of the following causes an object to start moving?

Accepted Answer

unbalanced forces

Answer

balanced forces

Answer

either balanced or unbalanced forces

Answer

any combination of forces

Question 7

When forces are balanced, the net force equals how many newtons?

Accepted Answer

0

Answer

1

Answer

2

Answer

3

Question 8

How would you find the net force of two dogs pulling in opposite directions?

Accepted Answer

Subtract the smaller force from the larger force.

Answer

Add the two forces.

Answer

Subtract the larger force from the smaller force.

Answer

Multiply the forces.

Question 9

If these boys are pulling with the same amount of force.  What will happen?

Accepted Answer

They will not move at all.

Answer

The boy in blue will win.

Answer

The boy in red will win.

Answer

Both will fall down.

Question 10

What is the net force?

Accepted Answer

40 N right

Answer

40 N left

Answer

0 N Balalnced

Answer

400 N right

Question 11

Which could be an example of a balanced force?

Accepted Answer

An asteroid moving at a constant speed through space

Answer

A car accelerating from a stop sign

Answer

A box of dishes falling from a counter

Answer

A rocket taking off

Question 12

What is the net force?

Accepted Answer

0 N

Answer

10 N

Answer

25 N

Answer

1 N

Question 13

These forces are...

Accepted Answer

Unbalanced

Answer

Balanced

Question 14

Balanced or unbalanced?

Accepted Answer

unbalanced

Answer

balanced

Question 15

If an object is not moving the forces acting upon it are _____________

Accepted Answer

balanced

Answer

unbalanced

Answer

weak

Answer

Hulk Smash!

Question 16

What is true about this picture?

Accepted Answer

The net force is 3 N

Answer

the forces are balanced

Answer

the net force is 10N

Answer

The net force is 17N

Question 17

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

Accepted Answer

Add

Answer

Subtract

Answer

Neither

Answer

Multiply

Question 18

8 N to the left , and 4 N to the right. Find the net force. Is this balanced

Accepted Answer

4 N Left  No

Answer

12 N Right  No

Answer

12 N Right  Yes

Answer

4 N Left  Yes

Question 19

With unbalanced forces, the object will move in the direction of the _______ force.

Accepted Answer

larger

Answer

smaller

Answer

equal

Question 20

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

Accepted Answer

60 N right

Answer

10 N left

Answer

60 n right

Answer

50 N left

Question 21

What famous scientist was the SI units of Force named after?

Accepted Answer

Isaac Newton

Answer

Galileo Galilei

Answer

Albert Einstein

Answer

Charles Darwin

Question 22

What is the net force?

Accepted Answer

4000 N left

Answer

5000 N right

Answer

4000 N right

Answer

40 N left

Question 23

What is Newton's First Law known as? The Law of

Accepted Answer

Inertia

Answer

Friction

Answer

Mass

Answer

Gravity

Question 24

What is Newton's First Law

Accepted Answer

An object at rest stays at rest, an object in motion stays in motion.

Answer

F=ma

Answer

Every action has an equal and opposite reaction

Answer

Friction

Question 25

If these boys are pulling with the same amount of force.  What will happen?

Accepted Answer

They will not move at all.

Answer

The boy in blue will win.

Answer

The boy in red will win.

Answer

Both will fall down.

Question 26

__________ is the sum of all forces acting on an object.

Accepted Answer

Net force

Answer

Velocity

Answer

Gravity

Answer

Distance

Question 27

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

Accepted Answer

in the same place

Answer

in motion

Question 28

What is the net force?

Accepted Answer

35 N right

Answer

65 N left

Answer

65 N right

Answer

35 N left

Question 29

What is the net force?

Accepted Answer

11 N left

Answer

11 N right

Answer

3 N left

Answer

3 N right

Question 30

What is the net force?

Accepted Answer

3 N left

Answer

3 N right

Answer

7 N left

Answer

7 N right

Question 31

The diagram below shows a skateboarder pushing himself forward with a force of 25 N while the wind pushes back with a force of 5 N. How will the skateboarder be affected if the force of the wind increases to 8 N?

Accepted Answer

The speed of the skateboarder will decrease.

Answer

The speed of the skateboarder will increase.

Answer

The speed of the skateboarder will remain constant.

Answer

The skateboarder will come to a stop.

Question 32

Who wins the tug of war with what net force?

Accepted Answer

The person on the left with 20 N

Answer

The person on the left with 80 N

Answer

The people on the right with 20 N

Answer

The people on the right with 100 N

Question 33

Balanced forces do not change the objects speed or

Accepted Answer

direction

Answer

distance

Answer

time

Answer

mass

Question 34

When objects remain in the same place, it is called...

Accepted Answer

balanced force

Answer

gravity

Answer

friction

Answer

unbalanced force

Question 35

Jonny and Patty are pushing against a basketball. Both of them push against the ball on opposite sides with a force of 20 N to keep the ball still. What is the net force?

Accepted Answer

0 N

Answer

400 N

Answer

24 N

Answer

40 N

Forces and Net Force

36 questions

The unit used to measure force.

The combination of all forces acting on an object.

The combination of all forces acting on an object.

Which of the following choices best represents force?

When the net forces equal 0 N, they are which of the following?

Which of the following causes an object to start moving?

When forces are balanced, the net force equals how many newtons?

How would you find the net force of two dogs pulling in opposite directions?

If these boys are pulling with the same amount of force. What will happen?

What is the net force?

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