Forces, Motion, and Friction

Which is true from Newton's Third law of motion?

• For every action force there is a smaller reaction force in the opposite direction.
• For every action force there is an equivalent reaction force in the opposite direction.
•  Both 1 and 2
• None of the above

What is Newtons 2nd law?

• equal&opposite force
• law inertia
• f=ma

When forces on an object are balanced, what is the net force?

• 0

• 5

• 10

• 21

The formula ...

? = Distance / Time

is used to find which of the following?

• Velocity

• Force

• Momentum

• Speed

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

A _____ is a pull or a push.

• force
• friction
• gravity
• speed

A car traveled 120 km in 2 hours. Using this data, you can calculate its _____.

• speed.
• velocity.
• position.
• mass.

_____________ is a change in speed, a change in direction, or both.

• Acceleration

• Velocity

• Time

An object is in motion relative to the _________________________.

• Mass

• Reference Point

• Gravity

• Forces and Motion