Physics Test: Practice Questions On Velocity And Acceleration!

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Physics Test: Practice Questions On Velocity And Acceleration! - Quiz

Motion is mathematically described in terms of displacement, distance, velocity, acceleration, time, and speed. In science class, we learnt how to measure this and how to measure speed. Take up the quiz below and test your understanding of this topic. All the best and keep studying for the upcoming exams!


Questions and Answers
  • 1. 

    A posistion describes an object's location compared to..

    • A.

      Its motion

    • B.

      A reference point

    • C.

      Its speed

    • D.

      A vector

    Correct Answer
    B. A reference point
    Explanation
    A position describes an object's location compared to a reference point. This means that the position of an object is determined by its distance and direction from a fixed point of reference. The reference point serves as a starting point or a frame of reference to measure the object's position. By comparing the object's location to this reference point, we can determine its position accurately.

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  • 2. 

    Maria walked 2 km in half an hour. What was her average speed during her walk?

    • A.

      1 km/h

    • B.

      2 km/h

    • C.

      4 km/h

    • D.

      6 km/h

    Correct Answer
    C. 4 km/h
    Explanation
    Maria walked 2 km in half an hour. To find her average speed, we divide the total distance walked (2 km) by the total time taken (0.5 hours). 2 km divided by 0.5 hours equals 4 km/h. Therefore, her average speed during her walk was 4 km/h.

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  • 3. 

    Mary and Keisha run with the same constant speed but in opposite directions. The girls have

    • A.

      The same position

    • B.

      Diffrent accelerations

    • C.

      Diffrent speeds

    • D.

      Diffrent velocities

    Correct Answer
    D. Diffrent velocities
    Explanation
    Since Mary and Keisha are running in opposite directions, their velocities will be different. Velocity is a vector quantity that includes both speed and direction. Even though they have the same constant speed, their velocities will be different because they are moving in opposite directions. Therefore, the correct answer is "different velocities".

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  • 4. 

    A swimmer increases her speed as she approaches the end of the pool. Her acceleration is

    • A.

      In the same direction as her motion

    • B.

      In the opposite direction of her motion

    • C.

      At right angles to her motion

    • D.

      Zero

    Correct Answer
    A. In the same direction as her motion
    Explanation
    The swimmer increases her speed as she approaches the end of the pool, indicating that her velocity is increasing. Since acceleration is the rate of change of velocity, and the swimmer's velocity is increasing, her acceleration must also be in the same direction as her motion.

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  • 5. 

    A cheetah can go from 0 m/s to 20 m/s in  2 s. What was the cheetah's acceleration?

    • A.

      5 m/s

    • B.

      10 m/s

    • C.

      20 m/s

    • D.

      40 m/s

    Correct Answer
    B. 10 m/s
    Explanation
    The cheetah's acceleration can be calculated by dividing the change in velocity by the time taken. In this case, the change in velocity is 20 m/s (final velocity) minus 0 m/s (initial velocity), which equals 20 m/s. The time taken is 2 seconds. Dividing the change in velocity by the time taken gives us an acceleration of 10 m/s.

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  • 6. 

    A car traveling at 40 m/s slows down to 20 m/s. During this time, the car has

    • A.

      No acceleration

    • B.

      Posistive acceleration

    • C.

      Negative acceleration

    • D.

      Constant velocity

    Correct Answer
    C. Negative acceleration
    Explanation
    When a car slows down from 40 m/s to 20 m/s, its velocity decreases. Since acceleration is defined as the rate of change of velocity, and the velocity is decreasing, the car is experiencing negative acceleration. Negative acceleration is also known as deceleration, which means the car is slowing down. Therefore, the correct answer is negative acceleration.

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  • 7. 

    Suppose you are biking with a friend. How would your friend describe your relative motion as he passes you?

  • 8. 

    Speed = ________/ time

    Correct Answer
    distance
    Explanation
    The given equation for speed, which is speed = distance/time, indicates that speed can be calculated by dividing the distance traveled by the time taken. Therefore, the correct answer is "distance."

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  • 9. 

    Is speed in a specific direction.

    Correct Answer
    velocity
    Explanation
    Velocity is a term used to describe the speed of an object in a specific direction. It is a vector quantity that includes both magnitude (speed) and direction. Unlike speed, which only refers to how fast an object is moving, velocity takes into account the direction of motion as well. Therefore, the given answer "velocity" accurately describes the concept of speed in a specific direction.

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  • Current Version
  • Mar 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 15, 2009
    Quiz Created by
    Jacutie14
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