Jillian Caldwell
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Bachelors Physics (Chapter 3) Quiz on Mastering Physics: Chapter 3, created by Jillian Caldwell on 13/02/2016.

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Jillian Caldwell
Created by Jillian Caldwell about 8 years ago
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Mastering Physics: Chapter 3

Question 1 of 22

1

A speedometer normally measures __________.

Select one of the following:

  • velocity

  • distance traveled

  • average speed

  • instantaneous speed

Explanation

Question 2 of 22

1

The difference between speed and velocity involves ________.

Select one of the following:

  • acceleration

  • path length

  • direction

  • the magnitude of each

Explanation

Question 3 of 22

1

Galileo discovered that when air resistance can be neglected, all objects fall with the same _______.

Select one of the following:

  • acceleration

  • distance

  • speed

  • energy of motion

Explanation

Question 4 of 22

1

Each second, a ball rolling down an inclined plane picks up ___________.

Select one of the following:

  • increasing amounts of speed

  • acceleration, not speed

  • the same amount of speed

  • decreasing amounts of speed

Explanation

Question 5 of 22

1

When we're talking about how quickly "how fast" changes, we're talking about _______.

Select one of the following:

  • increases in falling distance

  • acceleration

  • the difference between speed and velocity

  • free-fall physics

Explanation

Question 6 of 22

1

In its first second of free fall, a dropped softball will fall a vertical distance of ________.

Select one of the following:

  • 20m

  • 15m

  • 5m

  • 10m

Explanation

Question 7 of 22

1

A ball freely falling at 20 m/s will in the next second have a speed of _________.

Select one of the following:

  • more than 30 m/s

  • 20 m/s

  • 10 m/s

  • 30 m/s

Explanation

Question 8 of 22

1

The vertical height attained by a basketball player who achieves a hang time of a full 1 s is...

Select one of the following:

  • about 1.2 m

  • about 0.8 m

  • more than 2.5 m

  • about 2.5 m

  • about 1 m

Explanation

Question 9 of 22

1

A pot falls from a ledge and hits the ground 45 m below. The speed with which it hits the ground is

Select one of the following:

  • about 60 m/s

  • about 120 m/s

  • about 30 m/s

  • more than 120 m/s

Explanation

Question 10 of 22

1

A ball is thrown upwards. Neglecting air resistance, what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?

Select one of the following:

  • about 80 m/s

  • about 60 m/s

  • about 50 m/s

  • about 100 m/s

  • about 110 m/s

Explanation

Question 11 of 22

1

A car accelerates at 2 meters per second per second. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 30 m/s?

Select one of the following:

  • 2 seconds

  • 15 seconds

  • 60 seconds

  • 30 seconds

  • none of these

Explanation

Question 12 of 22

1

If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about

Select one of the following:

  • 1 second

  • 10 seconds

  • 2 seconds

  • 20 seconds

  • not enough info to estimate

Explanation

Question 13 of 22

1

If a projectile is fired straight up at a speed of 10 m/s, the time it takes to reach the top of its path is about

Select one of the following:

  • 2 seconds

  • 1 second

  • 10 seconds

  • not enough information to estimate

Explanation

Question 14 of 22

1

In each second of fall, the distance a freely falling object will fall is

Select one of the following:

  • about 10 m

  • the same, but not 5 m or 10 m

  • about 5 m

  • increasing

  • none of these

Explanation

Question 15 of 22

1

It takes 6 seconds for a stone to fall to the bottom of a mine shaft. How deep is the shaft?

Select one of the following:

  • more than 200 m

  • about 60 m

  • about 120 m

  • about 180 m

Explanation

Question 16 of 22

1

Starting from rest, the distance a freely falling object will fall in 0.5 second is about

Select one of the following:

  • 0.5 m

  • 1 m

  • 1.25 m

  • 5 m

  • none of the above

Explanation

Question 17 of 22

1

A ball is thrown upwards and caught when it comes back down. In the presence of air resistance, the speed with which it is caught is always

Select one of the following:

  • more than the speed it had when thrown upwards

  • the same as the speed it had when thrown upwards

  • less than the speed it had when thrown upwards

  • impossible to determine

Explanation

Question 18 of 22

1

At one instant a heavy object in air is moving upward at 50 meters per second. One second later its speed is approximately

Select one of the following:

  • 55 m/s

  • 50 m/s

  • 60 m/s

  • 40 m/s

Explanation

Question 19 of 22

1

If a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be about

Select one of the following:

  • 2 m/s

  • 3 m/s

  • 4 m/s

  • 6 m/s

Explanation

Question 20 of 22

1

A car accelerates at 2 meters/s/s. Assuming the car starts from rest, how far will it travel in 10 s?

Select one of the following:

  • 10 m

  • 100 m

  • 2 m

  • 40 m

  • 200 m

Explanation

Question 21 of 22

1

A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval its acceleration is

Select one of the following:

  • 1000 km/hr

  • 110 km/hr

  • 10 km/hr

  • zero

Explanation

Question 22 of 22

1

An object covers a distance of 8 meters in the first second of travel, another 8 meters during the next second, and 8 meters again during the third second. Its acceleration in meters per second per second is approximately

Select one of the following:

  • 0

  • 24

  • 5

  • 8

Explanation

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