Acceleration Practice #2

The starting speed of a car is called its speed.

• initial speed

• beginning speed

• fastest

• slowest

Tags

NGSS.MS-PS3-1

To find change in speed, subtract initial speed from speed.

• beginning speed

• time

• final speed

• distance

A change in speed and/or direction is called .

• speeding up

• slowing down

• velocity

• change in speed

Slowing down is called

Choose all that apply.

• negative acceleration

• velocity

• speed

• deceleration

To find acceleration, divide the change in speed by the

• time

• distance

• speed

• velocity

Which of the following are examples of acceleration?

Choose all that apply.

• A train sitting in the station

• A train pulling out of the station

• A train traveling consistently at 100km/hr on a straight track

• A train going around a curve in the track without changing speed

• A train pulling into a station

What is the formula to calculate speed?

• Speed = time/distance

• Speed = distance/time

• Speed = distance x time

• Speed = time x distance

What is velocity?

• the quickness of an object

• speed in a specific direction

• the location of an object

• acceleration

Tags

NGSS.MS-PS3-1

When a car goes around a corner at 20 mph, why do we say it accelerates?

• The car is accelerating because of the velocity is constant

• Cars always accelerate when they are in motion

• The car is accelerating because it's changing direction

• The car accelerates because it's going 20 mph

Calculate the average speed (in meter/sec) if a cheetah runs 180 meters in 10 seconds.

Remember: Practice using all steps on paper.

( S = d / t ) ( d = s * t ) ( t = d / s )

• 18 m/sec

• 198 m/sec

• 12 m/sec

• 170 m/sec