Acceleration, Speed, and Graphs Review

the unit of acceleration is

• (m/s²)

• jouls

• m

• s

A negative acceleration means that your object is  

• constant

• speeding up

• at rest

• slowing down

A positive acceleration means that your object is

• at rest

• speeding up

• moving

• slowing down

Acceleration: is the rate of change in

• velocity

• speed

• displacement

• direction

which isn't an example of acceleration

• When the car is speeding up.

• When the car slows down.

• When you fall off a bridge.

• no change in velocity

A bus starts from rest and accelerates to 14 m/s in 4 s. What is the average acceleration of the bus?

• 3.5 m/s2

• 5.9 m/s2

• 10.5 m/s2

• 24 m/s2

What is the formula to calculate speed?

• Speed = time/distance

• Speed = distance/time

• Speed = distance x time

• Speed = time x distance

Can be measured in meters per second (m/s)

• Distance

• Time

• Speed

• Acceleration

What is velocity?

• the quickness of an object

• the location of an object

• acceleration

• speed in a specific direction

Calculate the average speed (in meter/sec) if a cheetah runs 180 meters in 10 seconds.

• 198 m/sec

• 170 m/sec

• 12 m/sec

• 18 m/sec