acceleration

Front

Why does a car accelerate when going around a corner at 20 mph?

Back

The car is accelerating because it's changing direction

Front

Acceleration is defined as the CHANGE in

Back

velocity divided by the time interval

Front

In each of the following cases, determine where the car has no acceleration? Options: 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

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

A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?

Back

-0.5 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

Acceleration can be classified as: Speeding up, Slowing Down, Changing directions, All of the above

Back

All of the above

Front

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

Back

3.3 seconds

Front

In which situation would a car be slowing down while traveling backwards? Options: positive velocity and positive acceleration, positive velocity and negative acceleration, negative velocity and positive acceleration, negative velocity and negative acceleration.

Back

negative velocity and positive acceleration

Front

In which situation would a car be speeding up while traveling forward? Options: positive velocity and positive acceleration, positive velocity and negative acceleration, negative velocity and positive acceleration, negative velocity and negative acceleration.

Back

positive velocity and positive acceleration