Gr 10 Physical Sciences Ch 16: Speed and velocity
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Questions and Answers

What determines the velocity of an object?

  • The force applied to the object
  • The initial and final positions of the object (correct)
  • The path taken by the object
  • The mass of the object

    • What is the sign of velocity?

  • Can be positive or negative (correct)
  • Zero
  • Always positive
  • Always negative

    • What type of quantity is speed?

  • Scalar (correct)
  • Tensor
  • Vector
  • Matrix

    • What is the velocity of an object for a round trip?

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

    What is the difference between distance and displacement?

    <p>Distance does not consider direction, displacement does</p> Signup and view all the answers

    What is the speed of an object for a round trip?

    <p>Non-zero</p> Signup and view all the answers

    What is the formula to calculate average speed?

    <p>v_av = D / Δt</p> Signup and view all the answers

    What is the unit of average velocity?

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

    What is the main difference between average speed and average velocity?

    <p>Average speed depends on the total path traveled, while average velocity depends on the displacement</p> Signup and view all the answers

    What is the term for the total distance traveled?

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

    What is the formula to calculate average velocity?

    <p>Δx / Δt</p> Signup and view all the answers

    Is average velocity a scalar or vector quantity?

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

    What does Δx represent in the formula for average velocity?

    <p>Displacement (straight-line distance)</p> Signup and view all the answers

    What does the term 'average' mean in the context of speed and velocity?

    <p>It indicates the value over a specific period of time</p> Signup and view all the answers

    What is the key difference between average speed and average velocity?

    <p>Average speed is a scalar quantity, while average velocity is a vector quantity.</p> Signup and view all the answers

    If an object travels a total distance of 100 meters in 10 seconds, what is its average speed?

    <p>10 m/s</p> Signup and view all the answers

    Which of the following is an example of a situation where the average speed and average velocity are equal?

    <p>An object moving in a straight line.</p> Signup and view all the answers

    What is the unit of the total distance traveled in the formula for average speed?

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

    Why does average speed depend on the total path traveled?

    <p>Because it considers the total distance traveled.</p> Signup and view all the answers

    What is the term for the straight-line distance from the starting point to the endpoint?

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

    If an object's average velocity is 5 m/s, what can be said about its motion?

    <p>It's moving in a straight line.</p> Signup and view all the answers

    Why is average velocity a vector quantity?

    <p>Because it has both magnitude and direction.</p> Signup and view all the answers

    Which of the following is a characteristic of velocity?

    <p>It can be positive or negative.</p> Signup and view all the answers

    What is the main difference between speed and velocity?

    <p>Speed is a scalar quantity, while velocity is a vector quantity.</p> Signup and view all the answers

    An object travels from point A to point B and then returns to point A. What is the displacement of the object?

    <p>Zero, because the starting and ending points are the same.</p> Signup and view all the answers

    What is a characteristic of distance?

    <p>It is the total length of the path traveled by an object.</p> Signup and view all the answers

    Why is the velocity of an object for a round trip zero?

    <p>Because the displacement is zero, and the starting and ending points are the same.</p> Signup and view all the answers

    What is the main reason why speed and velocity are distinct concepts?

    <p>Speed is a scalar quantity, while velocity is a vector quantity.</p> Signup and view all the answers

    What is the primary reason why velocity depends on the direction of motion?

    <p>Because it is a vector quantity.</p> Signup and view all the answers

    What is the relationship between the total distance traveled and the speed of an object?

    <p>The total distance traveled is directly proportional to the speed.</p> Signup and view all the answers

    What is the main difference between the displacement of an object and its distance traveled?

    <p>Displacement considers direction, while distance traveled does not.</p> Signup and view all the answers

    Why is velocity a more informative quantity than speed in describing an object's motion?

    <p>Because velocity includes direction, while speed does not.</p> Signup and view all the answers

    What is the primary reason why the velocity of an object for a round trip is zero?

    <p>Because the displacement is zero.</p> Signup and view all the answers

    What is the relationship between speed and velocity for an object moving in a circular path?

    <p>Speed is equal to velocity.</p> Signup and view all the answers

    What is the primary reason why average speed is a scalar quantity?

    <p>It only has magnitude and no direction.</p> Signup and view all the answers

    Which of the following statements about average velocity is true?

    <p>It is a vector quantity with both magnitude and direction.</p> Signup and view all the answers

    What is the primary difference between average speed and average velocity?

    <p>Average speed is a scalar quantity, while average velocity is a vector quantity.</p> Signup and view all the answers

    Which of the following is a characteristic of average velocity?

    <p>It is a measure of an object's change in position per unit of time.</p> Signup and view all the answers

    What is the significance of the symbol Δx in the formula for average velocity?

    <p>It represents the change in position (displacement).</p> Signup and view all the answers

    Why is it necessary to specify the direction of travel when calculating average velocity?

    <p>Because average velocity is a vector quantity.</p> Signup and view all the answers

    What is the consequence of an object traveling in a circular path on its average velocity?

    <p>Its average velocity is zero.</p> Signup and view all the answers

    Which of the following is a characteristic of both average speed and average velocity?

    <p>They are both measures of an object's motion over a period of time.</p> Signup and view all the answers

    What is a key difference between speed and velocity?

    <p>Speed is always positive, while velocity can be positive or negative.</p> Signup and view all the answers

    Why does velocity depend on the initial and final positions?

    <p>Because velocity considers the direction of motion.</p> Signup and view all the answers

    What can be said about the displacement of an object that travels in a round trip?

    <p>The displacement is zero.</p> Signup and view all the answers

    Why is average velocity a more informative quantity than average speed?

    <p>Because average velocity considers the direction of motion.</p> Signup and view all the answers

    What is the main difference between distance and displacement?

    <p>Distance is the total length of the path traveled, while displacement is the straight-line distance from the starting point to the endpoint.</p> Signup and view all the answers

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