Mechanics REVIEW

Acceleration of an object happens when things...

• slow down

• go faster

• both

What are the units for velocity?

• Km

• s

• m/s

• m/s²

What are the units for acceleration?

• m/s

• m

• m/s²

• s

The rate at which velocity changes is called...

• motion

• average speed

• instantaneous speed

• acceleration

On a distance vs. time graph, the steeper the slope...

• the slower the speed

• the faster the speed

• less acceleration

• greater acceleration

Change in velocity over a given period of time is...

• position

• motion

• speed

• acceleration

You walk 10 meters to math class in 20 seconds. Your velocity is...

• 2 m/s

• 0.5 m/s

• 200 m/s

• 5 m/s

The slope of a velocity v. time graph is...

• velocity

• acceleration

• meters per second

• meters

The slope of a position v. time graph is...

• velocity

• acceleration

• seconds

• meters

A larger change in time will result in a larger force.

• True

• False