Linear Motion

A student walks 3 blocks south, 4 blocks west, and 3 blocks north. What is the displacement of the

student?

• 4 blocks east

• 4 blocks west

• 10 blocks west

• 10 blocks east

What is the average speed of an object that travels 6.00 meters north in 2.00 seconds and then travels 3.00 meters east in 1.00 second?

• 9.00 m/s

• 4.24 m/s

• 3.00 m/s

• 0.333 m/s

If an object is traveling north with a decreasing speed, the direction of the object's acceleration is

• west

• north

• south

• east

The speedometer in a car does not measure the car’s velocity because velocity is a

• vector quantity and has a direction associated with it

• vector quantity and does not have a direction associated with it

• scalar quantity and has a direction associated with it

• scalar quantity and does not have a direction associated with it

Velocity is to speed as displacement is to

• acceleration

• mass

• time

• distance

A toy car moves 8 m in 4 s at the constant velocity. What is the car’s velocity?

• 1 m/s

• 2 m/s

• 3 m/s

• 4 m/s

A train moves at a constant velocity of 50 km/h. How far will it move in 0.5 h?

• 10 km

• 20 km

• 25 km

• 45 km

A boat can move at a constant velocity of 8 km/h in still water. How long will it take for the boat to move 24 km?

• 2 h

• 3 h

• 4 h

• 6 h

Which of the following is a vector quantity?

• time

• velocity

• speed

• distance

A car at accelerates from 0 m/s to 25 m/s in 5 seconds. What is the average acceleration of the car?

• 30 m/s²

• 50 m/s²

• 125 m/s²

• 5 m/s²

Tags

NGSS.HS-PS2-1