Which of the following situations represents a positive displacement of a carton? Assume positive position is measured vertically upward along a y-axis.

b. When the elevator doors open, the delivery person lifts the dolly over the threshold of the elevator.

a. A delivery person waiting for an elevator lowers a carton onto a dolly.

c. The delivery person pushes the dolly to the back of the elevator while pressing a floor button.

d. The door closes and the elevator moves from the 10th to the 4th floors.

What is the correct description of any change of position farther to the right of zero?

d. positive change of displacement

E1T3 PreAP Physics Numbers 1-5 2016

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1/5 Questions

Which of the following situations represents a positive displacement of a carton? Assume positive position is measured vertically upward along a y-axis.
- A. A delivery person waiting for an elevator lowers a carton onto a dolly.
- B. When the elevator doors open, the delivery person lifts the dolly over the threshold of the elevator.
- C. The delivery person pushes the dolly to the back of the elevator while pressing a floor button.
- D. The door closes and the elevator moves from the 10th to the 4th floors.

About This Quiz

The 'E1T3 PreAP Physics Numbers 1-5 2016' quiz assesses understanding of displacement and motion. It includes scenarios involving a carton's vertical movement, a dog's walking path, and object displacements calculated from velocity and time, enhancing students' grasp of basic physics concepts.

2.

What is the maximum negative displacement a dog could have if it started its motion at +3 m?
- A. +7 m
- B. +3 m
- C. -3 m
- D. -7 m
Correct Answer

A. C. -3 m

Explanation

The maximum negative displacement a dog could have if it started its motion at +3 m is -3 m. Displacement refers to the change in position of an object, and negative displacement indicates that the object has moved in the opposite direction of its initial position. In this case, starting at +3 m, the dog can move up to 3 meters in the negative direction, resulting in a maximum negative displacement of -3 m.

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3.

What is the correct description of any change of position farther to the right of zero?
- A. positive displacement
- B. positive distance
- C. positive position
- D. positive change of displacement
Correct Answer

A. A. positive displacement

Explanation

A positive displacement refers to any change of position that is farther to the right of zero. This means that the object or point has moved in the positive direction along the number line. Displacement specifically refers to the change in position from an initial point to a final point, and in this case, the displacement is positive because it is to the right of zero.

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4.

A dog walks from +4 m to +2 m. Which of the following statements is true about the dog’s motion?
- A. xi = +2 m
- B. xf= +2 m
- C. delta x = +2 m
- D. vavg = 2 m/s
Correct Answer

A. B. xf= +2 m

Explanation

The statement "xf= +2 m" is true about the dog's motion. This means that the final position of the dog is +2 m.

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5.

Rank in from high to low the displacements of objects having the following pairs of average velocity and time.I.v_avg = +2.0 m/s, Dt = 2.0 sII. v_avg = +3.0 m/s, Dt = 2.0 sIII. v_avg = +3.0 m/s, Dt = 3.0 s
- A. I, II, III
- B. II, III, I
- C. II, I, III
- D. III, II, I
Correct Answer

A. D. III, II, I

Explanation

The displacement of an object is calculated by multiplying the average velocity by the time interval. In this case, the displacement for each pair can be calculated as follows:

I. displacement = (2.0 m/s) * (2.0 s) = 4.0 m
II. displacement = (3.0 m/s) * (2.0 s) = 6.0 m
III. displacement = (3.0 m/s) * (3.0 s) = 9.0 m

Therefore, the correct order from high to low displacement is III, II, I.

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E1t3 Preap Physics Numbers 1-5 2016

Which of the following situations represents a positive displacement of a carton? Assume positive position is measured vertically upward along a y-axis.

Quiz Preview

What is the maximum negative displacement a dog could have if it started its motion at +3 m?

What is the correct description of any change of position farther to the right of zero?

A dog walks from +4 m to +2 m. Which of the following statements is true about the dog’s motion?

Rank in from high to low the displacements of objects having the following pairs of average velocity and time.I.v_avg = +2.0 m/s, Dt = 2.0 sII. v_avg = +3.0 m/s, Dt = 2.0 sIII. v_avg = +3.0 m/s, Dt = 3.0 s

E1t3 Preap Physics Numbers 1-5 2016

Which of the following situations represents a positive displacement of a carton? Assume positive position is measured vertically upward along a y-axis.

Quiz Preview

What is the maximum negative displacement a dog could have if it started its motion at +3 m?

What is the correct description of any change of position farther to the right of zero?

A dog walks from +4 m to +2 m. Which of the following statements is true about the dog’s motion?

Rank in from high to low the displacements of objects having the following pairs of average velocity and time.I.vavg = +2.0 m/s, Dt = 2.0 sII. vavg = +3.0 m/s, Dt = 2.0 sIII. vavg = +3.0 m/s, Dt = 3.0 s

Rank in from high to low the displacements of objects having the following pairs of average velocity and time.I.v_avg = +2.0 m/s, Dt = 2.0 sII. v_avg = +3.0 m/s, Dt = 2.0 sIII. v_avg = +3.0 m/s, Dt = 3.0 s