Acceleration review

Which is an example of VELOCITY?

• A dog running at 3 m/s
• A deer sprinting at 4 m/s
• A migrating bird headed south for the winter at 3 m/s
• A person not moving at all

Tags

NGSS.MS-PS3-1

• Object not moving
• Object accelerating
• Object slowing down
• Object staying at a constant speed

Tags

NGSS.MS-PS3-1

• Object not moving
• Object accelerating
• Object slowing down
• Object at a constant speed

• Object not moving
• Object accelerating
• Object slowing down
• Object at a constant speed

Tags

NGSS.MS-PS3-1

Slowing down is an example of...

• Constant speed
• Acceleration

Tags

NGSS.MS-PS3-5

Which of the following statements about speed and velocity is correct?

• Velocity only describes an object’s rate of motion.
• Speed describes how an object is changing its velocity.
• Speed and velocity both describe how an object is speeding up.
• Only velocity includes the direction an object is traveling.

If an object is slowing down, what value would the acceleration be?

• positive

• negative

• both positive or negative

• Objects can only speed up

Acceleration is a change in _________ or __________.

• speed or direction

• speed or distance

• displacement or speed

• speed or displacement

A car starts from rest and accelerates uniformly to a speed of 5 m/s in 2.5 seconds. The magnitude of the acceleration of the car is

• 2 m/s²

• 2 m/s

• 12.5 m/s²

• 12.5 m/s

Tags

NGSS.MS-PS2-2

A negative acceleration means that your object is _____.

• doing nothing

• moving in circles

• speeding up

• slowing down

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5