Representing Forces

Multiple Choice

A ____________ is a push or a pull on an object.

• friction

• force

Multiple Choice

What are the units for force?

• Newtons (N)
• Kilograms (kg)

Multiple Choice

All of the following forces are contact considered to be contact forces except?

• Friction

• Air resistance

• Normal force

• Gravity

Multiple Choice

Contact forces must have?

• distance between objects

• physical contact between objects

Multiple Choice

Why is the net force 0 in the image?

• Because the elephants are the same size
• Because they are both pulling the same amount of force in opposite directions

Multiple Choice

Calculate the net force acting upon the object.

• 10 N south
• 0 N

Multiple Choice

TRUE OR FALSE: Unbalanced forces result in a change of motion.

• True

• False

Multiple Choice

What is the net force?

• 25 N right
• 5 N left

Multiple Choice

What is the net force?

• 0 N Balalnced
• 40 N right

Multiple Choice

What is the net force?

• 400 N Up
• 400 N Down

Multiple Choice

Name the missing force....

• normal force
• tension force

Multiple Choice

Name the missing force...

• tension force
• normal force

Multiple Choice

The down-arrow in this diagram is most-likely:

• gravity

• normal

Multiple Choice

A force is not required to keep a moving object in motion.

• True

• False

Multiple Choice

The unbalanced force that opposes or slows down the motion between two surfaces is known as?

• Friction

• Normal Force

Multiple Choice

Static Friction is ?

• Two surfaces slide over each other

• Occurs on objects that are not moving

Multiple Choice

Kinetic Friction is ?

• Two surfaces slide over each other

• Occurs on objects that are not moving

Multiple Choice

A diagram that shows all the forces acting on an object is called a __________ body diagram.

• Free

• Correct

Multiple Choice

All of the following forces are contact considered to be contact forces except?

• Friction

• Air resistance

• Gravity