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

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

When are you undergoing an acceleration in a car?

Back

All of the above (speed up, slow down, make turns)

Front

A negative acceleration means that your object is _____.

Back

slowing down

Front

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.

Back

9 m/s²

Front

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

Back

16 m/s²

Front

Does acceleration only occur when things speed up?

Back

False