A car is driven for 3 hours. What else do you need to know to describe this car’s speed?

• the road the car in driven on
• the time of day
• the distance the car is driven
• the number of passengers in the car

Which runner stopped for a rest?

• Albert
• Bob
• Charlie

Which is an example of zero acceleration?

• A merri-go-round moving at a constant rate
• A car coming to a stop
• A boat speeding up
• A person running on a treadmill at a rate of 6 MPH

Tags

NGSS.HS-PS2-1

A truck driving at 60 miles per hour travels 150 miles. How long is it driving for?

• 9000 hours
• 0.4 hours
• 210 hours
• 2.5 hours

Velocity is

• speed and acceleration
• constant speed
• a frame of reference
• speed in a given direction

Speed =

• distance / time
• time / distance
• distance * time

You walk 10 meters to math class in 20 seconds. Your average speed is

• 2 m/s
• 0.5 m/s
• 200 m/s
• 5 m/s

Acceleration is

• increasing speed
• decreasing speed
• changing direction
• all of the above

Tags

NGSS.HS-PS2-1

A car driving 100 miles per hour hits the brakes and slows to 50 miles per hour. This is an example of negative acceleration. True or False?

• True
• False

Tags

NGSS.HS-PS2-1

The difference between speed and velocity is

• Velocity involves time, speed does not
• Velocity has direction while speed does not
• Speed involves time while velocity does not
•  Speed involves direction while velocity does not