Acceleration

What type of acceleration is shown in the graph?

• positive

• negative

• centripetal

• Zero

Acceleration is defined as

• the change in velocity over time

• the change in position over time

• the change in time over velocity

• the change in time over distance

What type of acceleration is shown in the graph?

• positive

• negative

• 0 or no acceleration

• centripetal

Suppose Mr. Nye is forced to jam on his brakes as he is driving down a straight road due to Tate flexing his "muscles" in the middle of the road. He and his car experienced a

• positive acceleration.

• negative acceleration.

• 0 or no acceleration.

• centripetal acceleration.

Tags

NGSS.MS-PS2-2

Suppose your bike accelerates from 2 m/s to 11 m/s in 3 seconds. What is your average acceleration?

• 3 m/s

• -3 m/s/s

• 3 mph

• 3 m/s/s

• 4.5 m/s/s

You are rotating on a Merry-Go-Round at a constant speed of 2.5 m/s. Which of the following are you experiencing?

• positive acceleration

• negative acceleration

• centripetal acceleration

• 0 or no acceleration

Superman (AKA Mr. Nye) is flying around fighting crime. He sees a public disturbance and slows from 40 m/s to 0 m/s in 5 seconds. What is his acceleration?

• -8 m/s/s

• -8 m/s

• 8 m/s/s

• 200 m/s/s

• 8 m/s

Suppose Owen is riding the Tilt-a-Whirl at an amusement park. He feels pushed towards the outside of the ride car because the ride car is undergoing

• positive acceleration.

• negative acceleration.

• centripetal acceleration.

• 0 or no acceleration.

If you speed up then velocity and acceleration are in _____________, but if you slow down velocity and acceleration are in _______________.

• the same direction; the same direction

• opposite directions; opposite directions

• opposite directions; the same direction

• the same direction; opposite directions