A change in velocity over time is known as:

• acceleration
• constant speed
• average speed
• displacement

How do you calculate average speed?

• divide total time by total distance
• multiply total time by total distance
• divide total distance by total time
• subtract total time from total distance

The rate at which velocity changes is called

• acceleration
• constant speed
• average speed
• displacement

Tags

NGSS.HS-PS2-1

2 objects traveling at the same speed have different velocities if they....

• start at different times
• travel different distances
• have different masses
• move in different directions

Which of the following represents a velocity?

• 40 m
• 40 m north
• 40 m/s
• 40 m/s north

A rocket traveling faster and faster in a straight line is NOT changing its....

• mass
• momentum
• energy
• direction

Tags

NGSS.HS-PS2-2

Which of the following is accelerating?

• A cannonball sitting on the ground
• A boat traveling at a constant speed in a straight line
• A can being crushed under a person's foot
• A car going around a curve at a constant speed

Tags

NGSS.HS-PS2-1

Which is a velocity?

• 200 mph
• 200 mph north
• 800 miles north
• 800 miles

Which boats have identical velocities?

• boat 1 and 3
• boat 1 and 4
• boat 2 and 4
• boat 3 and 4

Tags

NGSS.MS-PS3-1

A race car driving on a circular track is constantly accelerating because...

• It is moving relative to the ground
• The car is constantly changing speed
• The car is constantly changing direction
• It is maintaining a constant velocity