Velocity

What is the average speed for the first section of the graph?

• 0 km/h

• 30 km/h

• 15 km/h

• -15 km/h

Tags

NGSS.MS-PS3-1

During which time interval is the object not moving?

• 9:00 to 11:00

• 11:00 to 12:00

• 12:00 to 12:30

• 12:30 to 14:00

Tags

NGSS.MS-PS3-1

Which of the following time intervals shows an object moving at a constant speed toward the reference point?

• 9:00 to 11:00

• 11:00 to 12:00

• 12:00 to 12:30

• 12:30 to 14:00

Tags

NGSS.MS-PS3-1

This occurs when an object speeds up, slows down, or changes direction. (a)  

• Speed

• Velocity

• Acceleration

You rode your dirt bike in a straight line at a constant speed of 10 km/h. Did you accelerate?

• Acceleration occurred because speed changed.

• Acceleration did not occur because neither speed nor direction changed.

• Acceleration occurred because you changed directions.

An object moving with constant velocity has (a)   because there is no ​ change .

• constant acceleration

• no acceleration

• a slow speed

• a faster speed

Changing direction is a form of

(a)  

• velocity

• acceleration (or negative acceleration)

Tags

NGSS.MS-PS2-2

A decrease in speed is known as

negative acceleration or (a)  

• tenacious slowing

• deceleration

• positive acceleration 

Objects moving with circular motion are ​ (a)   because direction is constantly changing

• velocitizing

• never accelerating

• mass

• constantly accelerating

What is the velocity?

• positive

• negative

• decreasing

• increasing

Tags

NGSS.MS-PS3-1