E1t6 PBL Regular Preap Physics 2016

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1. The speed of a car will increase if the car's

Initial velocity is positive and its acceleration is zero.

Initial velocity is positive and its acceleration is positive.

Initial velocity is positive and its acceleration is negative.

Initial velocity is negative and its acceleration is zero.

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E1t6 PBL Regular Preap Physics 2016 - Quiz

2. What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

2. Acceleration is defined as

Rate of displacement.

The rate of change of displacement.

The change in velocity.

The rate of change of velocity.

3. The speed of a car will decrease if the car's

Initial velocity is positive and its acceleration is zero.

Initial velocity is positive and its acceleration is positive.

Initial velocity is positive and its acceleration is negative.

Initial velocity is negative and its acceleration is negative.

4. Four people are riding the bicycles along different paths. Bicyclist 1 is traveling east at a constant speed of 10 mph. Bicyclist 2 is traveling north at a constant speed of 5 mph. Bicyclist 3 is traveling along a circular path at a constant speed of 7 mph. Bicyclist 4 is traveling along a radius of Bicyclist 3's circular path at a constant speed of 20 mph. Which of the bicyclists is accelerating along his/her path?

Bicyclist 3 because of his velocity is constant but not his speed

Bicyclist 3 because his direction is constant

Bicyclist 3 because his direction is changing

None of the bicyclists are accelerating

5. An object travels 5 m in the 1st second of travel, 5 additional m during the 2^nd second of travel, and 5 more m during the 3rd second of travel. Its acceleration is, therefore,

0 m/s^2

5 m/s^2

10 m/s^2

More than 10 m/s^2

6. The speed of a car will increase if the car's

Initial velocity is positive and its acceleration is zero.

Initial velocity is negative and its acceleration is negative.

Initial velocity is positive and its acceleration is negative.

Initial velocity is negative and its acceleration is zero.

7. For a scooter with a negative acceleration, which of the following statements is always true?

The scooter is losing speed.

The final velocity of the scooter will be negative.

The initial velocity of the scooter will be greater than its final velocity.

The scooter will have a negative displacement.

8. An object travels 5 m in the 1st second of travel, 10 additional m during the 2^nd second of travel, and 15 more m during the 3rd second of travel. Its acceleration is, therefore,

0 m/s^2

1.7 m/s^2

9.99 m/s^2

More than 10 m/s^2

9. An object travels 5 m in the 1st second of travel, 5 additional m during the 2^nd second of travel, and 5 more m during the 3rd second of travel. Its acceleration is, therefore,

0 m/s^2

5 m/s^2

10 m/s^2

More than 10 m/s^2

Thank you for your feedback!

E1t6 PBL Regular Preap Physics 2016

1. The speed of a car will increase if the car's

2.

What first name or nickname would you like us to use?

2. Acceleration is defined as

3. The speed of a car will decrease if the car's

5. An object travels 5 m in the 1st second of travel, 5 additional m during the 2nd second of travel, and 5 more m during the 3rd second of travel. Its acceleration is, therefore,

6. The speed of a car will increase if the car's

7. For a scooter with a negative acceleration, which of the following statements is always true?

8. An object travels 5 m in the 1st second of travel, 10 additional m during the 2nd second of travel, and 15 more m during the 3rd second of travel. Its acceleration is, therefore,

9. An object travels 5 m in the 1st second of travel, 5 additional m during the 2nd second of travel, and 5 more m during the 3rd second of travel. Its acceleration is, therefore,

5. An object travels 5 m in the 1st second of travel, 5 additional m during the 2^nd second of travel, and 5 more m during the 3rd second of travel. Its acceleration is, therefore,

8. An object travels 5 m in the 1st second of travel, 10 additional m during the 2^nd second of travel, and 15 more m during the 3rd second of travel. Its acceleration is, therefore,

9. An object travels 5 m in the 1st second of travel, 5 additional m during the 2^nd second of travel, and 5 more m during the 3rd second of travel. Its acceleration is, therefore,