Motion and Speed Vocabulary

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

The tornado is traveling northwest at 20 mph. 

• speed
• velocity
• acceleration

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
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction

1. 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.

Which of these objects is NOT accelerating?

• A plane slowing down to land

• A rocket taking off into space

• A hiker moving at the same speed for hours

• A rollerblader heading downhill

Acceleration only takes place when things speed up. 

• True
• False

Tags

NGSS.MS-PS3-5

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above

A dog runs on the sidewalk 9 mi/hr.

• Speed
• Acceleration
• Velocity

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Tags

NGSS.MS-PS3-1

If you slow down on your bicycle, you accelerate.

• TRUE
• FALSE