Physics Unit 1 Quiz 2

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Amoverby
A
Amoverby
Community Contributor
Quizzes Created: 12 | Total Attempts: 6,956
| Attempts: 152
SettingsSettings
Please wait...
  • 1/10 Questions

    Which of the following units is the SI unit of velocity?

    • Meter
    • Meter per second
    • Meter per second per second
    • Second per meter
Please wait...
About This Quiz

Physics Unit 1 Quiz 2 covers fundamental concepts including units of mass, velocity, and motion analysis through graphs, with practical scenarios like baseball pitching.

Physics Unit 1 Quiz 2 - Quiz

Quiz Preview

  • 2. 
    Which straight-line acceleration indicates an increase in speed? - ProProfs

    Which straight-line acceleration indicates an increase in speed?

    • 0 m/s2

    • -15 m/s2

    • 4 m/s2

    • All of the above

    Correct Answer
    A. 4 m/s2
    Explanation
    An acceleration of 4 m/s2 indicates an increase in speed because acceleration is the rate at which an object's velocity changes. A positive acceleration value means that the velocity is increasing, while a negative acceleration value indicates a decrease in velocity. Therefore, an acceleration of 4 m/s2 suggests that the object is gaining speed.

    Rate this question:

  • 3. 

    On a speed-time graph, a line with a negative slope indicates that the object is

    • Speeding up

    • Slowing down

    • Not moving

    • Traveling at a constant speed

    Correct Answer
    A. Slowing down
    Explanation
    A line with a negative slope on a speed-time graph indicates that the object is slowing down. The slope of a line on a graph represents the rate of change, and in this case, a negative slope means that the speed is decreasing over time. This indicates that the object is decelerating or slowing down its motion.

    Rate this question:

  • 4. 

    On a distance vs. time graph, the line of an object at rest is a

    • Curved line with a slope of zero.

    • Flat line with a slope of zero.

    • Jagged line with a negative slope.

    • Curved line with a positive slope.

    Correct Answer
    A. Flat line with a slope of zero.
    Explanation
    The line of an object at rest on a distance vs. time graph is a flat line with a slope of zero because when an object is at rest, it does not change its position over time. Therefore, the distance traveled remains constant, resulting in a horizontal line on the graph. The slope of this line is zero because there is no change in distance with respect to time.

    Rate this question:

  • 5. 

    The SI base unit used to measure mass is the

    • Meter

    • Second

    • Kilogram

    • Liter

    Correct Answer
    A. Kilogram
    Explanation
    The SI base unit used to measure mass is the kilogram. Mass is a fundamental property of matter and is measured using the kilogram as the base unit. The kilogram is defined as the mass of the International Prototype of the Kilogram, a platinum-iridium cylinder kept at the International Bureau of Weights and Measures in France. It is a standard unit of mass that is widely used in scientific and everyday measurements.

    Rate this question:

  • 6. 

    Moving from 0 m/s to 25 m/s in 8.0 s equals an average acceleration of

    • 0.32 m/s

    • 0.32 m/s^2

    • 3.1 m/s

    • 3.1 m/s^2

    Correct Answer
    A. 3.1 m/s^2
    Explanation
    The average acceleration can be calculated by dividing the change in velocity by the time taken. In this case, the change in velocity is 25 m/s (from 0 m/s to 25 m/s) and the time taken is 8.0 s. Dividing 25 m/s by 8.0 s gives an average acceleration of 3.1 m/s^2.

    Rate this question:

  • 7. 

    A pitcher throws a baseball to home plate, a distance of 60.5 ft. The ball reaches home plate in 0.63 s. What is the velocity of the ball?

    • 38 ft/s

    • 38 ft/s toward home plate

    • 96 ft/s

    • 96 ft/s toward home plate

    Correct Answer
    A. 96 ft/s toward home plate
    Explanation
    The velocity of the ball is 96 ft/s toward home plate because velocity is calculated by dividing the distance traveled by the time taken. In this case, the ball traveled a distance of 60.5 ft in 0.63 s, resulting in a velocity of 96 ft/s. The "toward home plate" part is included in the answer to specify the direction of the velocity.

    Rate this question:

  • 8. 

    The difference between speed and velocity is that velocity includes

    • Direction.

    • Distance.

    • Time.

    • Weight.

    Correct Answer
    A. Direction.
    Explanation
    The difference between speed and velocity lies in the inclusion of direction. While speed only refers to the rate at which an object moves, velocity takes into account both the speed and the direction in which the object is moving. Therefore, velocity provides a more comprehensive description of an object's motion, as it specifies both the magnitude and the direction of the object's displacement.

    Rate this question:

  • 9. 
    The graph above describes the motion of a cyclist. The graph illustrates that the acceleration of the cyclist  - ProProfs

    The graph above describes the motion of a cyclist. The graph illustrates that the acceleration of the cyclist 

    • Is constant

    • Increases

    • Decreases

    • Is zero

    Correct Answer
    A. Increases
    Explanation
    The graph above shows the motion of a cyclist. From the graph, we can see that the velocity of the cyclist is increasing over time. Since acceleration is the rate of change of velocity, an increasing velocity indicates that the acceleration of the cyclist is also increasing. Therefore, the correct answer is "increases".

    Rate this question:

  • 10. 

    A cheetah can accelerate at up to 6.0 m/s2. How long does it take for a cheetah to speed up from 10.5 m/s to 12.2 m/s?

    • 0.28 s

    • 1.7 s

    • 3.5 s

    • 10 s

    Correct Answer
    A. 0.28 s
    Explanation
    The cheetah's acceleration is given as 6.0 m/s^2. To find the time it takes for the cheetah to speed up from 10.5 m/s to 12.2 m/s, we can use the equation v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time. Rearranging the equation to solve for time, we have t = (v - u) / a. Plugging in the values, we get t = (12.2 - 10.5) / 6.0 = 0.28 s.

    Rate this question:

Quiz Review Timeline (Updated): Apr 25, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 25, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 20, 2014
    Quiz Created by
    Amoverby
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.