Net (Resultant) Forces and Motion

Multiple Choice

What is another word for net force?

• final force

• overall force

• resultant force

• total force

Multiple Choice

A wagon is being pulled to the left with a force of 20 Newtons. What is the net force?

• 20

• 20N

• 20 N Left

• Unknown

Multiple Choice

What is the net force?

• 14N left

• 20N left

• 14 left

• 20 left

Multiple Choice

What is the net force?

• 3N up

• 10 N up

• 20N up

• 75N up

Multiple Choice

These forces are...

• Balanced

• Unbalanced

Multiple Choice

What is the magnitude (size) and direction of the net force?

• 21 N to the Left
• 3 N to the Left
• 21 N to the Right
• 3 N to the Right

Multiple Choice

What is the net force (calculation).

• 5

• 11 N Right

• 5 N Right

• 0 N

Multiple Choice

What is the net force?

• 0N (balanced)

• 11N up

• 46N right

• It's too complicated to figure out.

Multiple Choice

the tendency of an object to resist a change in its motion

• acceleration
• inertia
• mass
• frame of reference

Multiple Choice

A skateboard rolls down a hill, reaches the level surface and eventually comes to a stop. The fact that the skateboard ultimately stops is best explained by .....

• the skateboard needs an additional unbalanced force to continue its motion

• the presence of an unbalanced force can cause a moving object to stop

• the presence of inertia causes it to stop

• the natural tendency of any object is to stop at some point

Multiple Choice

If the net force on an object is zero, the object will:

• start moving

• stop moving

• change direction

• there will be no change in the object's motion

Multiple Select

An object was falling down before these forces acted on it. Which of these could happen to the motion of the object?

(Choose TWO)

• It will slow down

• It will speed up

• It will start moving up

• It will continue falling at the same speed in the same direction.

Multiple Choice

An object was moving to the left before these forces started acting on it. What is the net force, and what will happen to the motion of the object?

• 11 N left, it will slow down

• 11 N left, it will speed up

• 21N left, it wil slow down

• 21N left, it will speed up

Multiple Choice

An object was stationary before it was acted on by these forces. What will happen to the motion of the object?

• It will start moving left

• It will slow down

• It will stop

• It will change directions

Mixed Practice!​

Do your best​

Multiple Choice

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Multiple Choice

Calculate the net force shown in the  diagram?

• 41 N down

• 25 N down

• 16 N down

• 9 N down

Multiple Choice

Calculate the net force.

• 0 N

• 5 N right

• 25 N right

• 15 N right

Multiple Choice

What is the net force?

• 5.5 N left
• 5.5 N right
• 2.5 N left
• 2.5 N right

Multiple Choice

Which of the following has a net force of 0 Newtons?

• An asteroid moving at a constant speed through space 
• A car accelerating from a stop sign
• A box of dishes falling from a counter 
• A rocket taking off 

Multiple Choice

Which direction will the soccer ball go and with how much force? 

• 200N Left 
• 1.66N Left 
• 50N Left 
• 12N Left 

Multiple Choice

A downward-moving skydiver who has just opened the parachute is slowing down.