Physics Motion Quiz 04

The table shows the position versus time of a dog chasing a frisbee thrown by its person. How far did the dog run? (The position is measured from the person.)

• 3 meters

• 4 meters

• 8 meters

• 11 meters

• 19 meters

The skier in the diagram shown is at position A when t = 0 minutes, at position B when t = 1 minute, at position C when t = 2 minutes, and at position D when t = 3 minutes. Assume right is positive and left is negative. What is the distance in meters? (Write the number without units.)

The skier in the diagram shown is at position A when t = 0 minutes, at position B when t = 1 minute, at position C when t = 2 minutes, and at position D when t = 3 minutes. Assume right is positive and left is negative. What is the displacement in meters? (Write the number without units.)

You are going to Grandma’s house, which is 20 miles due north of you. Then you go to Safeway, which is 10 miles directly east of Grandma’s house. You then travel 20 miles due south to your workplace. What is your displacement?

• 10 miles, East

• 10 miles, West

• 20 miles, East

• 20 miles, West

A radio-controlled car travels in one direction down a straight track. A part of the motion is shown in the top view diagram shown. Every second the car sprays a paint dot on the track to mark its position. Which description best fits the motion of the car from t = 4 seconds to t = 6 seconds?

• Slows down and stops because the dots stop.

• Slowing down because the postion/time ratio is getting smaller.

• Moving at a constant speed because the dots are equally spaced.

• Moving fast because the position readings are very high

Tags

NGSS.MS-PS3-1

Some students decide to take a bike ride. For the first two hours they travel at a speed of 15 mi/hr, they then stop for lunch for an hour. The students then ride for another hour at 10 mi/hr. What was their average speed for the entire trip?

• 10 mi/hr

• 12.5 mi/hr

• 13.3 mi/hr

• 15 mi/hr

Sheila runs the 200-meter race for her track team. She runs the first 100 meters at 9.00 meters per second. She runs the final 100 meters at 10.0 meters per second. How long did it take Sheila to run the first 100 meters?

• 9.0 s

• 10.0 s

• 11.1 s

• 20.0 s

Patti runs the 200-meter race for her track team. She runs the first 100 meters at 9.0 meters per second. She runs the final 100 meters at 10 meters per second. What was Patti’s average speed for the entire race?

• 9.48 m/s

• 10.0 m/s

• 11.1 m/s

• 21.1 m/s

A beetle walks along a road. The graph of its motion is shown. What was its average speed in centimeters per second for the entire trip? (Write the number without units.)

Tags

NGSS.MS-PS3-1

A beetle walks along a road. The graph of its motion is shown. What was its average velocity in centimeters per second for the entire trip? (Write the number without units.)

Tags

NGSS.MS-PS3-1