7th Science Unit 4 Quiz

An airplane travels a distance of 4,000 km from New York to Los Angeles in 5 hours. What was the average speed of the airplane?

• 800

• 600

• 1000

• 500

Anna ran 100 meters in 20 seconds. What was her average speed?

• 5

• 2

• 10

• 20

A swimmer is moving at a speed of 2.0 m/s. How many seconds will it take for the swimmer to go 150 meters?

• 75

• 50

• 100

• 60

A car traveled 420 km in 7 hours. How far did the car travel in 3 hours?

• 180

• 120

• 210

• 150

Jose travelled for 30 minutes at 10 mph. How far did he travel?

• 5

• 2

• 10

• 15

Which car has a constant velocity?

• 1

• 2

• 3

• 4

A helicopter ambulance flew from one hospital to another in a straight line. The pilot had to change speed several times due to the presence of other aircraft. What was the average speed of the helicopter during the trip?

• 2.0 km/min

• 2.5 km/min

• 4.0 km/min

• 7.5 km/min

Based on the graph, what was Terrell’s speed during his experiment?

• 5 m/s

• 6 m/s

• 30 m/s

• 150 m/s

A car traveling in a northeasterly direction at a rate of 50 km/h represents which of the following?

• speed

• velocity

• acceleration

• deceleration

A 0.20 kg softball travels 97 meters south for 4.5 seconds. What piece of information distinguishes the velocity from the speed of the ball?

• The ball went south.

• The ball flew for 4.5 s.

• The ball traveled 97 m.

• The ball has a mass of 0.20 kg.