Concepts and Skills Check

Which situation would be indicated by an acceleration arrow and a final velocity arrow pointing in the same direction?

• an object speeding up

• an object at a standstill

• an object slowing down

final speed minus initial speed, divided by time

• acceleration

• speed

• relative motion

change in velocity during a period of time

• acceleration

• velocity

• speed

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

Tags

NGSS.HS-PS2-1

Acceleration: is the rate of change in ___________.

• speed
• distance
• velocity 
• displacement 

Tags

NGSS.HS-PS2-1

In each of the following cases, determine where the car has no acceleration ?

• A car shortly after a stoplight turns green.
• A car approaching a red light
• A car with the cruise control set at 80 km/h
• A car moving down a ramp

Tags

NGSS.HS-PS2-1

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

• Its direction changes

• It doesn't

• It slows down

• Its speeds up

Tags

NGSS.HS-PS2-1

Determine the motion of the car.

• at rest 
• moving at constant speed
• speeding up
• slowing down

Tags

NGSS.HS-PS2-1

Determine the motion of the car.

• at rest 
• constant velocity 
• speeding up
• slowing down

Tags

NGSS.HS-PS2-1

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

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

Tags

NGSS.HS-PS2-1