SVA Teacher LEAD Review

Select all of the answers that apply. Speed requires what items to be a speed?

• distance

• time

• acceleration

• direction

Select all that apply. Velocity requires what things?

• distance

• time

• specific direction

• acceleration

Select all that apply. Acceleration can be..

• speeding up

• slowing down

• stopping

• changing direction

Mrs. Hunt drove around an oval track for fun in Mexico is an example of a(n)

• speed

• velocity

• acceleration

• density

40m/s is a ....

• speed

• velocity

• acceleration

37 km/hr west is a(n)

• speed

• velocity

• acceleration

• speeding up

Kalvin was riding on a motorcycle at 70m/s² is an example of a(n)

• speed

• velocity

• acceleration

• none of these

1. Which of the following statements about speed and velocity is correct?

• Velocity only describes an object’s rate of motion.
• Speed describes how an object is changing its velocity.
• Speed and velocity both describe how an object is speeding up.
• Only velocity includes the direction an object is traveling.

Acceleration describes how an object’s velocity is changing.  Which of the following scenarios provides the best example of an accelerating object?

• A car driving at a constant speed
• A book sitting on top of a high shelf
• A toy train traveling in a circle
• A toy boat floating in a bathtub

When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction