Unit 4 quiz review

x + 1 = 2

• 2

• 1

• 0

2x + 2 = 12

• 10

• 5

• 2

• 8

x = 2²

• 2

• 4

• 6

• 8

Do astronauts need gravity on long space journeys?

• yes

• no

How could a space station be designed to have artificial gravity?

• going really fast

• spinning

• accelerating at different magnitudes

The Frame of reference, or _________, is how you view the problem.

What is the Law of Inertia?

Is weight the same thing as mass?

• yes

• no

What is not a way to accelerate?

• speeding up

• slowing down

• changing direction

• going straight

If you are sitting on a horse going v = 3 m/s at r = 3 meters from the radius, what is your centripetal acceleration?

• 3

• 6

• 9

• 1