3.1 Acceleration

Multiple Choice

If an object has constant acceleration and speeding up, what happens to the velocity vectors in a motion diagram?

• the

  velocity vectors on the motion diagram

  increase in length by the same amount

  with each successive dot.

• the

  velocity vectors on the motion diagram

  decrease in length by the same amount

  with each successive dot.

Multiple Choice

You are walking in a straight line at a consistent speed. Do you have acceleration? 

• no
• yes 

Multiple Choice

Why is understanding acceleration important in the study of motion?

• Because it helps predict how objects move and change speed

• Because it only applies to objects at rest

• Because it is unrelated to velocity

• Because it is only used in advanced physics

Multiple Choice

What symbol used to represent acceleration

• V

• X

• a

Multiple Choice

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 

Multiple Choice

The SI unit for acceleration is ______.

• m
• m/s
• m/s²
• s