Physics APA Review Quiz

This graph shows the motion of a bus.

If the bus continues moving at the same speed, what is the total distance that it will have traveled in 7.5 minutes?

• 7500m/s

• 7500m

• 7000m

• 6500m

The graph illustrates the motion of an object moving in a straight line at constant speed.

What is the average velocity of the object?

• 4m/s

• 5m

• 5m/s

• 4m

A dune buggy is cruising along a beach. Its motion is recorded in the velocity versus time graph below.

What is the total distance the dune buggy traveled from 0 to 12 seconds?

• 100m

• 350m

• 440m

• 540m

A car moves along a test track in the + x-direction. The velocity versus time graph below records this, with line segments L through P identifying different stages of motion.

Which of the following correctly ranks the magnitudes of acceleration of the stages of motion of the car from greatest to least?

• N > P > L > M

• P > N > L > O

• O > N > P > L

• P > N > L > M

An airplane was moving 50 m/s to the north relative to the air at landing. The wind was blowing 5 m/s toward the south relative to the ground. What was the speed of the airplane relative to the ground at the time of landing?

• 40m/s

• 55m/s

• 50m/s

• 45m/s

To avoid a time delay, the larger jet refuels the smaller jet.

What must the speed of the two jets be relative to the ground?

• The smaller jet must be faster to align with the fueling jet.

• The fueling jet must be faster to avoid spilling.

• The speed must change depending on altitude.

• The speed must be the same for both jets.

A motorboat can travel 6 mph in still water. The diagram shows a person on the bank of a river observing a motorboat aimed upstream.

The person standing on the bank observes which motion of the motorboat?

• The motorboat moves up the river at 6 mph.

• The motorboat stays in the same place on the river.

• The motorboat is pushed downriver by the water.

• The motorboat will go 36 mph downriver if it turns around.

A heavy round rock and a light marble are simultaneously dropped from the same height. Why would they land at the same time?

• Both are slowed equally by friction.

• Both accelerate at the same rate.

• They have equal kinetic energy.

• They have equal volumes.

Spheres X and Y are rolling as shown.

Sphere Z rolls to the right at a rate of 1 m/s relative to Sphere X. What is the speed of Sphere Z relative to Sphere Y?

• 4 m/s

• 6 m/s

• 7 m/s

• 8 m/s

A car is moving at a constant speed of 16 kilometers per hour (km/hr) while traveling in a circle. Why is the velocity of the car changing?

• because the direction of the car is changing

• because the mass of the car is constant

• because the speed is constant

• because the time is changing