Unit 3 Topics Make Up Works

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.

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

• 0

• 5

• 10

• 21

______________ measures an object's tendency to resist changing its motion.

• Acceleration

• Inertia

• Gravity

• Weight

The formula ...

? = Distance / Time

is used to find which of the following?

• Velocity

• Force

• Momentum

• Speed

What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

Isaac Newton created the three laws of ______________.

• motion

• movement

• gravity

• texting

According to Newton, what kinds of objects are affected by gravity?

• Only objects inside the earth's atmosphere, like apples.

• Only objects that orbit the sun, like planets.

• Only objects with a lot of mass, like human beings.

• All objects in the universe.

What is the average speed in kilometers per hour?

• 32 km/h

• 2 m/s

• 20 mp/h

• 20 km/h

An airplane suddenly hits a strong head wind (pushes against forward motion), what will occur?

• Speed up

• Change direction

• Descend

• Go slower

How can this motion best be described?

• Car at a constant speed

• Stopping at a light

• Slowing down

• Speeding up