Average Acceleration

What is happening at segment C?

• acceleration

• deceleration

• constant speed

• no motion/object at rest

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

the rate at which speed or velocity changes

• acceleration

• average speed

• motion

• reference point

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

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

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

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

Remember: ( A = CIS / t ) ( CIS = A * t ) ( t = CIS / A )

• 3.3 seconds

• 35 seconds

• 750 seconds

• 0.3 seconds

Tags

NGSS.MS-PS2-2

What is the formula for average acceleration?

If a car's velocity changes from 20 m/s to 60 m/s in 5 seconds, what is its average acceleration?

• 8 m/s^2

• 10 m/s^2

• 12 m/s^2

• 15 m/s^2

Tags

NGSS.HS-PS2-1

Which of the following scenarios describes average acceleration?

• A car maintaining a constant speed of 60 km/h

• A ball rolling down a hill and speeding up

• A cyclist traveling at a constant velocity

• A train moving at a constant speed on a straight track