Acceleration and Velocity - Time graphs Review 2

Speed that does not change.

• Rate of Change
• Constant Speed
• Velocity
• Speed

Velocity is defined as

• Speed in a given direction
• How fast something is going
• Sped times direction
• None of the above

A change in velocity over time is called

• Speed

• Distance

• Acceleration

• Increasing acceleration

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

Speed = Distance / time

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Tags

NGSS.MS-PS3-1

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

A = V_f - V_i /t

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

Tags

NGSS.HS-PS2-1

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes

• It slows down

• It doesn't

• Its speeds up  

Tags

NGSS.MS-PS2-2

When are you NOT undergoing an acceleration in a car?

• speed up

• constant speed

• slow down

• make turns

The SI unit for acceleration is

• mph

• m/s²

• ft/sec

• m/s

A negative acceleration means that your object is _____. 

• not accelerating

• speeding up 

• not moving

• slowing down 

A positive acceleration means that your object is _____.

• not accelerating

• speeding up

• not moving

• slowing down