Acceleration Basics

A bus travels 20 m in the first second, 20 meters in the next second, and 20 meters in the second after that. Its acceleration is 

• 0 m/s²
• 20 m/s²
• 400 m/s²
• 200 m/s²

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 

A car goes from 0 to 30 mi/hr in 6 seconds. What is the car's acceleration? 

• 5 mi/hr*s
• 10 mi/hr*s
• 5 mi/hr²
• 5 mi/s²

The position vs. time graph shows an object that is.....

• accelerating/speeding up
• moving at a constant speed
• not moving 
• changing direction 

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

How can you change the acceleration in a car? ( Hint: You can FEEL a change in acceleration)

• The steering wheel 
• The brake pedal
• The gas (the accelerator) 
• All of the above 

Acceleration is defined at a change in velocity. Velocity is ______ 

• Speed in one direction 
• The same thing as speed
• distance/time
• time/distance 

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  

If you are in a car and you change direction, what are you doing?

• changing my velocity 
• accelerating 
• B and C 
• None of the above.