Motion Test 2023

A car advertisement states that a certain car can accelerate from rest to 60 km/h in 6 seconds.  Calculate the car’s average acceleration.

• 10 m/s²

• 490 m/s²

• 0.1 m/s²

• 100 m/s²

The space shuttle releases a space telescope into orbit around the earth. The telescope goes from being stationary to traveling at a speed of 1600 m/s in 20 seconds. What is the acceleration of the satellite?

• 80 m/s²

• 42500 m/s²

• 0.0147 m/s²

• 1700 m/s²

Suppose that an object travels from one point in space to another. Make a comparison between the displacement and the distance traveled.

• The displacement is either greater than or equal to the distance traveled

• The displacement can be either greater than, smaller than, or equal to the distance traveled.

• The displacement is either less than or equal to the distance traveled.

• If the displacement is equal to zero, then the distance traveled will also equal zero

Describe the difference between a scalar and a vector. In your answer, use should include the terms "magnitude" and "direction", and an example of each one.

Tyler drives 40 km north.  Tyler then drives back 20 km south.  What was his displacement?

• 20 km north

• 20 km south

• 80 km 

• 80 km north

Stan walks 15 km west to the grocery store.  He shops then walks back 15 km east back to his house. What distance did he cover?

• 30 m

• 10 m

• 0 m

• 100 m

How long will it take light moving at 300,000 km/s to reach us from the sun? The sun is 15,000,000 km from earth.

• 50 seconds

• 1234567898 seconds

• .02 seconds

• 1000000 seconds

A football field is about 100 m long. If it takes a person 20 seconds to run its length, how fast (what speed) were they running?

• 5 m/s

• .2 m/s

• 2000 m/s

• 50 m/s

A skydiver leaps from an airplane.  After 3 seconds, the skydiver has a velocity of 27 m/s.  Which of the following is the average acceleration of the sky diver?

• 9 m/sec²

• 9.8 m/sec²

• 
  32 m/sec²

• 144 m/sec²

When people talk about how fast they drive, what are they actually referring to?

• Time

• Speed

• Velocity

• Acceleration