Acceleration

Acceleration is a change in ________. 

• direction 
• speed 
• velocity 
• distance 

The unit we use to measure acceleration is ___. 

• meters / second 
• meters 
• seconds 
• meters / second / second 

Tags

NGSS.HS-PS2-1

You are walking in a straight line at a constant speed. Do you have acceleration?

• no

• yes

You are walking and start to slow down. Do you have acceleration? 

• yes
• no 

Tags

NGSS.MS-PS2-2

Slowing down is called

Choose all that apply.

• negative acceleration

• acceleration

• speed

• deceleration

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

Which of the following is a unit for acceleration?

Choose all that apply.

• km/s

• m/s²

• mi/hr

• ft

• m/s/s

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

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.

Acceleration only takes place when things speed up.

• true

• false