Acceleration and Velocity

Acceleration is a measure of how slowly velocity changes.

• TRUE

• FALSE

A runner crossed the 1 mile marker of a race running at a speed of 9 miles per hour. She crossed the finish line running at a speed of 9.8 miles per hour. Did the runner change her velocity?

• Yes

• No

A runner crossed the 1 mile marker of a race running at a speed of 9 miles per hour. She crossed the finish line running at a speed of 9.8 miles per hour. This is an example of...

• positive acceleration

• negative acceleration

• no acceleration

Velocity = _______________

• Speed – direction

• Speed + direction

• Speed x direction

• Speed / direction

At what speed would a car have to move in order to travel 20 kilometers in 2 hours.

• 5 km/hr

• 10 km/hr

• 20 km/hr

• 40 km/hr

What is the definition of velocity?

• A force that opposes motion

• Uniform circular motion

• The speed of an object in a particular direction

Tags

NGSS.MS-PS3-1

What is this?

This airplane is traveling at 500 mph, West

• Speed

• Velocity

• Acceleration

Tags

NGSS.MS-PS3-1

What is happening at segment A?

• no motion/object at rest

• constant speed

• deceleration

Which graph represents the greatest acceleration?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

What is happening at D?

• Stationary

• Accelerating

• Fast steady speed; moving away from the starting position

• Slower steady speed; moving away from the starting position

Tags

NGSS.MS-PS3-1