acceleration

Front

What is the unit of acceleration?

Back

m/s²

Front

The rate that a car's velocity changes is its

Back

acceleration

Front

Acceleration is defined as the CHANGE in

Back

the velocity divided by the time interval

Front

A negative acceleration means that an object is _____.

Back

slowing down

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

In which of the following cases does a car have zero acceleration?

• A car speeding up after a stoplight turns green.
• A car slowing down when it approaches a stop sign.
• A car set on cruise control so that it maintains 45 mi/hr.
• A car turning a curve at a constant speed.

Back

A car set on cruise control so that it maintains 45 mi/hr.

Front

Example of deceleration:

• a car approaching a stop sign and slowing down
• a plane increasing speed down the runway and then taking flight
• a roller coaster moving down a steep hill
• an airplane cruising in a straight flight plan

Back

a car approaching a stop sign and slowing down

Front

The SI unit for acceleration is

Back

m/s²

Front

In Physics, when can acceleration occur?

Back

An object speeds up or slows 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