Speed, Velocity & Acceleration Noel Pd 2

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  • 1/13 Questions

    In order to calculate the velocity of an object you must know the time and the _________ (assuming the direction remains constant).

    • Time
    • Distance
    • Acceleration
    • Speed
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About This Quiz

Explore key concepts in physics with the 'Speed, Velocity & Acceleration Noel Pd 2' quiz. This educational tool assesses understanding of speed, velocity, acceleration, and their interrelations. Ideal for students looking to reinforce their knowledge in kinematics, the quiz offers a practical approach to learning these fundamental physics topics.

Speed, Velocity & Acceleration Noel Pd 2 - Quiz

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  • 2. 

    The best way to describe the rate of motion of an object that changes speed several times is to calculate the object's ____________________

    • Average speed

    • Constant speed

    • Instantaneous speed

    • Acceleration

    Correct Answer
    A. Average speed
    Explanation
    When an object changes speed several times, the best way to describe its rate of motion is by calculating the object's average speed. Average speed takes into account the total distance covered by the object and the total time taken, giving a measure of the overall speed throughout the entire motion. This is more appropriate than constant speed, which implies a consistent velocity throughout the motion, or instantaneous speed, which refers to the speed at a specific moment in time. Acceleration, on the other hand, measures the rate at which the object's speed changes over time, which is not the same as describing the overall rate of motion.

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  • 3. 

    An object moving at the same speed over a certain distance is said to be traveling at a_______________________.

    • Constant Speed

    • Instantaneous Speed

    • Average Speed

    • Acceleration

    Correct Answer
    A. Constant Speed
    Explanation
    When an object is moving at the same speed over a certain distance, it is said to be traveling at a constant speed. This means that the object is maintaining a steady velocity without any changes in its speed or direction. It is important to note that constant speed does not necessarily mean that the object is moving at a high or low speed, but rather that it is maintaining a consistent rate of motion.

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  • 4. 
    Do any of the cars experience negative acceleration? - ProProfs

    Do any of the cars experience negative acceleration?

    • Car A, min 6-7

    • Car B, min 6-7

    • Neither car decelerates

    Correct Answer
    A. Car B, min 6-7
    Explanation
    Both Car A and Car B do not experience negative acceleration because neither car decelerates. Negative acceleration occurs when an object slows down or decelerates. Since both cars maintain a constant speed, they do not experience negative acceleration.

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  • 5. 

    Speed with direction is called ________________.

    • Acceleration

    • Deceleration

    • Velocity

    • Constant Speed

    Correct Answer
    A. Velocity
    Explanation
    Velocity is the correct answer because it refers to the speed of an object in a specific direction. It is a vector quantity that takes into account both the magnitude (speed) and direction of an object's motion. Acceleration refers to the rate of change of velocity, deceleration is a type of acceleration that refers to the decrease in velocity, and constant speed refers to an object moving at the same speed without any change in velocity.

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  • 6. 

    To find acceleration the initial velocity is _________ from the final velocity and then _____ by the time it takes to change velocity.

    • Divided, divided

    • Subtracted, divided

    • Subtracted, Mulitplied

    • Divided, multiplied

    Correct Answer
    A. Subtracted, divided
    Explanation
    To find acceleration, the initial velocity is subtracted from the final velocity to determine the change in velocity. Then, this change in velocity is divided by the time it takes to change velocity. This calculation allows us to determine the rate at which an object's velocity is changing over time, which is known as acceleration.

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  • 7. 

    The term that means a change in rate of velocity is ____________.

    • Acceleration

    • Deceleration

    • Speed

    • Instantaneous Speed

    Correct Answer
    A. Acceleration
    Explanation
    Acceleration is the correct answer because it refers to a change in the rate of velocity. Velocity is a vector quantity that includes both speed and direction, so when there is a change in velocity, it means that either the speed or the direction or both have changed. Acceleration specifically measures the rate at which velocity changes over time, whether it is an increase or decrease in speed or a change in direction. Therefore, acceleration is the term that best describes a change in rate of velocity.

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  • 8. 

    The speed of an object at any given point in time is the object's ___________________.

    • Constant Speed

    • Instantaneous Speed

    • Average Speed

    • Acceleration

    Correct Answer
    A. Instantaneous Speed
    Explanation
    The speed of an object at any given point in time is referred to as its instantaneous speed. This term is used to describe the speed of an object at a specific moment or instant, rather than an average speed over a given time period. Instantaneous speed provides information about how fast an object is moving at a particular point in time, allowing for a more detailed understanding of its motion.

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  • 9. 

    A constant velocity means acceleration is _____________.

    • Positive

    • Negative

    • Increasing

    • Zero

    Correct Answer
    A. Zero
    Explanation
    A constant velocity means that there is no change in speed or direction over time. In other words, the object is moving at a steady rate without speeding up or slowing down. Since acceleration is the rate of change of velocity, a constant velocity implies that the acceleration is zero.

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  • 10. 
     What is the acceleration of car A from 6 min to 10 min?  - ProProfs

     What is the acceleration of car A from 6 min to 10 min? 

    • Positive

    • Negative

    • Zero

    Correct Answer
    A. Zero
    Explanation
    The acceleration of car A from 6 min to 10 min is zero. This means that the car maintains a constant velocity during this time interval, neither speeding up nor slowing down.

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  • 11. 
     What is the acceleration of car B from 1 min to 5 min?  - ProProfs

     What is the acceleration of car B from 1 min to 5 min? 

    • Positive

    • Negative

    • Zero

    Correct Answer
    A. Positive
    Explanation
    The acceleration of car B from 1 min to 5 min is positive. This means that the car is increasing its speed during this time period.

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  • 12. 

    _______________ is defined as the rate of change in position.

    • Speed

    • Velocity

    • Acceleration

    • Deceleration

    Correct Answer
    A. Speed
    Explanation
    Speed is defined as the rate of change in position. It is a scalar quantity that only considers the magnitude of the change in position, without considering the direction. Speed can be calculated by dividing the distance traveled by the time taken. It is commonly expressed in units such as meters per second (m/s) or kilometers per hour (km/h).

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  • 13. 

    A body accelerates if it____________

    • Speeds up

    • Slows down

    • Changes direction

    • All possible choices

    Correct Answer
    A. All possible choices
    Explanation
    A body accelerates if it speeds up, slows down, or changes direction. Acceleration is a measure of how an object's velocity changes over time, and any change in speed or direction indicates acceleration. Therefore, all the given choices - speeding up, slowing down, and changing direction - are correct explanations for when a body accelerates.

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

  • Current Version
  • Mar 15, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 11, 2015
    Quiz Created by
    James McFadden
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