E1t3 Retake Preap 2016
-
What is the speed of an object at rest?
-
A. 0.0 m/s
-
B. 1.0 m/s
-
C. 9.8 m/s
-
D. 9.81 m/s
-
This E1T3 Retake PreAP 2016 quiz assesses fundamental kinematics concepts in Physics. It covers topics such as object speed at rest, negative displacement, and motion analysis. Designed for PreAP students, it helps in reinforcing comprehension of motion dynamics.
(145).webp "E1t3 Retake Preap 2016 - Quiz")
Quiz Preview
- 2.
Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a y-axis.)
-
a. A cat stands on a tree limb.
-
b. A cat jumps from the ground onto a tree limb.
-
c. A cat jumps from a lower tree limb to a higher one.
-
d. A cat jumps from a tree limb to the ground.
Correct Answer
A. d. A cat jumps from a tree limb to the ground.Explanation
In this scenario, the cat is moving downwards from a higher position (tree limb) to a lower position (ground). Since the positive position is measured vertically upward along the y-axis, any movement in the opposite direction (downward) represents a negative displacement. Therefore, option d is the correct answer as it represents a negative displacement.Rate this question:
-
- 3.
A toy car rolls from +3 m to +5 m. Which of the following statements is true?
-
A. xf = +3 m
-
B. xi = +3 m
-
C. delta x = +3 m
-
D. vavg = 3 m/s
Correct Answer
A. B. xi = +3 mExplanation
The correct answer is b. xi = +3 m. This statement is true because xi represents the initial position of the toy car, and in this case, it starts at +3 m.Rate this question:
-
- 4.
What is the correct description of any change of position farther to the left of zero?
-
A. positive displacement
-
B. negative distance
-
C. positive position
-
D. negative displacement
Correct Answer
A. D. negative displacementExplanation
A change of position farther to the left of zero indicates that the object has moved in the negative direction, or to the left. Displacement refers to the change in position, and since the object has moved to the left, the displacement is negative. Therefore, the correct answer is d. negative displacement.Rate this question:
-
- 5.
Rank in increasing order the distances traveled by objects having the following pairs of average velocity and time of motion.I. vavg = -4.0 m/s, t = 2.0 sII. vavg = +3.0 m/s, t = 2.0 sIII. vavg = -3.0 m/s, t = 3.0 s
-
A. III, I, II
-
B. II, III, I
-
C. II, I, III
-
D. III, II, I
Correct Answer
A. C. II, I, IIIExplanation
The distance traveled by an object can be calculated by multiplying the average velocity by the time of motion. In this case, for option II, the average velocity is +3.0 m/s and the time of motion is 2.0 s, resulting in a positive distance traveled. For option I, the average velocity is -4.0 m/s and the time of motion is 2.0 s, resulting in a negative distance traveled. For option III, the average velocity is -3.0 m/s and the time of motion is 3.0 s, resulting in a negative distance traveled. Therefore, the correct order of distances traveled in increasing order is II, I, III.Rate this question:
-
Quiz Review Timeline (Updated): Jul 22, 2024 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Jul 22, 2024Quiz Edited by
ProProfs Editorial Team -
Aug 25, 2015Quiz Created by
Sfduke
Back to top