Physics Quiz: Motion and Speed
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Questions and Answers

What is the unit of speed in which the falcon's speed is represented in Table 13.4?

  • km/m
  • m/h
  • m/s
  • km/h (correct)

    • If a car travels at a speed of 40 km/h for 2 hours, how far will it travel?

  • 120 km
  • 100 km
  • 60 km
  • 80 km (correct)

    • What type of speed is measured by a speedometer in a car?

  • Relative speed
  • Uniform speed
  • Instantaneous speed (correct)
  • Average speed

    • Which of the following factors does not affect the speed of an object?

    <p>Time of day</p> Signup and view all the answers

    In which of the following everyday situations is speed not an important consideration?

    <p>Cooking a meal</p> Signup and view all the answers

    What is the speed of the giant tortoise in m/s, according to Table 13.4?

    <p>0.27 m/s</p> Signup and view all the answers

    What is the primary factor in determining which object is moving the fastest?

    <p>Time taken to cover the distance</p> Signup and view all the answers

    When comparing the speed of two objects, what is the most relevant piece of information?

    <p>The distance each object covers in a given time</p> Signup and view all the answers

    What is a common experience that illustrates the concept of speed?

    <p>Seeing off a friend at the bus stand</p> Signup and view all the answers

    What is the significance of the time taken to cover a certain distance?

    <p>It determines the speed of the object</p> Signup and view all the answers

    What is the relationship between speed and the distance covered by an object?

    <p>Speed is directly proportional to the time taken to cover the distance</p> Signup and view all the answers

    What is the primary unit of speed?

    <p>Metres per second</p> Signup and view all the answers

    What is an example of speed in everyday life?

    <p>Riding a bicycle to school</p> Signup and view all the answers

    What can be used to compare the speed of different objects?

    <p>The distance each object covers in a given time</p> Signup and view all the answers

    What is the type of speed calculated in the case of a car moving with a speed of 50 kilometres per hour?

    <p>Average speed</p> Signup and view all the answers

    What is the unit of speed used in the example of the car moving at 50 kilometres per hour?

    <p>Kilometres per hour</p> Signup and view all the answers

    Why is the speed calculated as total distance covered divided by total time taken?

    <p>Because it is an average speed</p> Signup and view all the answers

    What is the factor that affects the speed of a car in everyday life?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of measuring intervals of time that are much shorter than a day?

    <p>To measure intervals of time in everyday life</p> Signup and view all the answers

    How do clocks and watches measure time?

    <p>By measuring the intervals of time</p> Signup and view all the answers

    What is the term used in this book to describe the average speed of an object?

    <p>Speed</p> Signup and view all the answers

    What is the main difference between the speed of a car and the speed of a bicycle?

    <p>The car is moving with a variable speed, while the bicycle is moving with a constant speed</p> Signup and view all the answers

    Study Notes

    Motion and Speed

    • Motion refers to the movement of objects, such as a bicycle, a swing, a pendulum, and the Earth moving around the Sun.
    • Speed is the distance covered by an object in a given interval of time.

    Calculating Speed

    • Speed = Total distance covered ÷ Total time taken
    • Distance covered = Speed × Time

    Measuring Speed and Time

    • Clocks and watches are used to measure intervals of time, which are often shorter than a day.
    • Speedometers in vehicles measure speed in km/h.

    Speed of Animals

    • The fastest speed of some animals are:
      • Falcon: 320 km/h (320 × 10^3 m/s)
      • Cheetah: 112 km/h
      • Blue fish: 40-46 km/h
      • Rabbit: 56 km/h
      • Squirrel: 19 km/h
      • Domestic mouse: 11 km/h
      • Human: 40 km/h
      • Giant tortoise: 0.27 km/h

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    Description

    Test your understanding of motion and speed with this quiz, covering concepts such as athletes, bicycles, and the motion of the Earth around the Sun.

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