Motion: Velocity, Acceleration

What is the SI unit of distance?

• foot

• meter

• mile

• kilometer

A change in position with repect to a reference point...

• velocity

• distance

• motion

• acceleration

If you were in the red car, which would be good reference points? (select ALL that apply)

• house

• trees

• airplane

What quantity can you calculate if you know that a car travels 30 km in 20 min?

• average speed

• direction

• velocity

• instantaneous speed

What is the speed of a car travels 30 km in 20 min?

• 1.5 m/s

• 25 m/s

• 0.67 m/s

Fill in the blank: On a graph of distance versus time, the slope of the line indicates the _______ of an object.

• velocity

• speed

• acceleration

• displacement

During which period of time was the car moving the fastest?

• 0-4 s

• 4- 8 s

• 8-12 s

What is the speed for the interval of 0-4 s?

• 1 m/s

• -1 m/s

• 0 m/s

• 0.5 m/s

What is the speed for the interval of 4-8 s?

• 1 m/s

• -1 m/s

• 0 m/s

• 0.5 m/s

The rate at which velocity changes is...

• acceleration

• direction

• speed

• velocity