acceleration

What does this graph represent?

• Constant Speed
• Acceleration
• Deacceleration
• Not moving

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

How long does it take a car to travel 40m at 12m/s?

• 4.8 s

• 480 s

• 3.33 s

• 33.3 s

Which graph shows: a car slowing down and coming to a stop.

• A
• B
• C
• D

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

When is an object under uniform acceleration?

• none of the following

• when the direction is straight

• when the velocity change is constant per unit time

• when the time is constant

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 acceleration during the first 5 seconds?

• 2 m/s²

• 4 m/s²

• 5 m/s²

• 10 m/s²