Acceleration - Practice

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

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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?

• -7.5 m/s

• -7.5 m/s²

• -0.5 m/s²

• 7.5 mi//hr

Tags

NGSS.MS-PS2-2

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

• 2.2m/s²
• 7.0m/s²
• 5.7m/s²
• 70m/s²

Tags

NGSS.MS-PS2-2

Acceleration is defined as the CHANGE in 

• time it takes for one place to move to another place. 
• velocity of an object.
• distance divided by the time interval 
• velocity divided by the time interval 

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up  

Tags

NGSS.MS-PS2-2

When are you undergoing an acceleration in a car? (Check all that apply)

• speed up

• slow down

• make turns

• stopped

A negative acceleration means that your object is _____. 

• not accelerating
• not moving
• speeding up 
• slowing down 

The unit for Acceleration is usually

• m/s

• m/s²

• m

• s

The speed boats speed increased from 0m/s to 24m/s in a time span of 12 seconds. What was its rate of acceleration?

• 4 m/s²

• 2 m/s²

• 8 m/s²

• 6 m/s²

A boat increases its speed from 16 m/s to 96 m/s in 5 seconds. What was its rate of acceleration?

• 10 m/s²

• 16 m/s²

• 14 m/s²

• 16 m/s

Tags

NGSS.HS-PS2-1