Acceleration Quiz L

Acceleration occurs when an object ____________________.

• speeds up

• slows down

• changes direction

• all choices are correct

The slope of a line on a Velocity vs Time graph represents ___________________.

• displacement

• speed

• velocity

• acceleration

Stephen wants to calculate the downward acceleration of his favorite roller coaster. He recorded the initial velocity of the car at the top of the hill, and the time it took to reach the bottom. Which piece of data does he still need?

• mass of the car and riders

• final velocity of the car

• length of the hill

• height of the hill

When an object travels at a constant speed without changing direction, its acceleration is

• increasing

• decreasing

• zero

What is the displacement from 0 s to 5 s?

• 125 m

• 62.5 m

• 5 m/s²

• not enough information to answer this question.

What is the acceleration from 3 to 5 sec?

• 1.6 m/s²

• 2.7 m/s²

• 4 m/s²

• -1.4 m/s²

A driver is traveling with a velocity of 12 m/s then he speeds up to 24 m/s in 6 seconds, what was his acceleration?

• 2 m/s²

• 8 m/s²

• 22 m/s²

• -2 m/s²

A car in a race has an acceleration of 5 m/s². Between 4 seconds and 8 seconds, the car starts at a speed of 25 m/s. What is the cars final velocity during that time interval?

• 31.2 m/s

• 0.8 m/s

• -5 m/s

• 45 m/s

If I push a ball at a velocity of 4 m/s, and it underwent an acceleration of -1.5 m/s² while rolling to a stop, how long would it take for it to stop?

• 2.7 s

• 0.38 s

• -2.7 s

• -2.5 s

A ball is rolling with an initial velocity of 2.5 m/s. It comes to a stop 25 meters from it’s starting point. What was the ball’s acceleration?

• 31.3 m/s²

• -78.1 m/s²

• -0.125 m/s²

• -0.05 m/s²