Acceleration

Front

The picture of the position vs. time graph shows an object that is...

Back

accelerating/speeding up

Front

Acceleration is defined as the CHANGE in

Back

velocity divided by the time interval

Front

Why does a car accelerate as it rounds a corner at a constant speed?

Back

Its direction changes

Front

Which graph shows the object standing still? Options: A, B, C, D

Back

B

Front

Determine where the car has no acceleration: A car shortly after a stoplight turns green, A car approaching a red light, A car with the cruise control set at 80 km/h, A car turning a curve at a constant speed.

Back

A car with the cruise control set at 80 km/h

Front

The SI unit for acceleration is

Back

m/s²

Front

A negative acceleration means that your object is _____.

Back

slowing down

Front

A roller coaster accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?

Back

16 m/s²

Front

A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the acceleration?

Back

40 m/s²

Front

A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?

Back

7m/s²