Calculate Acceleration

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

Remember: A = Change in Velocity / time

• 24 m/s²

• 16 m/s

• 18 m/s/s

• 16 m/s²

Tags

NGSS.MS-PS2-2

To find acceleration, divide the change in speed by the

• time

• distance

• speed

• velocity

Which of the following is a unit for acceleration?

Choose all that apply.

• km/s

• m/s²

• mi/hr

• ft

• m/s/s

Acceleration is defined as the CHANGE in

• the time it takes for one place to move to another place.

• the distance divided by the time interval.

• the velocity divided by the time.

• the velocity of an object.

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?

• -0.5 m/s

• -7.5 m/s²

• -0.5 m/s²

• -7.5 m/s

Tags

NGSS.MS-PS2-2

A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the acceleration?

• 0 m/s

• -40 m/s²

• 40 m/s²

• 40 m/s

Tags

NGSS.MS-PS2-2

A car accelerates from rest to a speed of 30 m/s in 10 seconds. What is the acceleration?

• 3 m/s^2

• 30 m/s

• 0.3 m/s^2

• 300 m/s^2

If a cyclist increases her speed from 5 m/s to 25 m/s in 4 seconds, what is her acceleration?

• 5 m/s^2

• 20 m/s^2

• 2.5 m/s^2

• 10 m/s^2

A ball is dropped from a height and accelerates at 9.8 m/s^2. What is the acceleration due to gravity?

• 9.8 m/s^2

• 0 m/s^2

• 98 m/s^2

• -9.8 m/s^2

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Which of the following scenarios describes a negative acceleration?

• A car slowing down at a red light

• A rocket launching into space

• A cyclist maintaining a constant speed

• A train speeding up