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 (B)</p> Signup and view all the answers

What is the difference between distance and displacement?

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

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

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

What is the formula to calculate average speed?

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

What is the unit of average velocity?

<p>Metre per second (B)</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 (D)</p> Signup and view all the answers

What is the term for the total distance traveled?

<p>Distance (D)</p> Signup and view all the answers

What is the formula to calculate average velocity?

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

Is average velocity a scalar or vector quantity?

<p>Vector (C)</p> Signup and view all the answers

What does Δx represent in the formula for average velocity?

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

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

<p>Meter (B)</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. (D)</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 (D)</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. (B)</p> Signup and view all the answers

Why is average velocity a vector quantity?

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

Which of the following is a characteristic of velocity?

<p>It can be positive or negative. (B)</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. (D)</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. (D)</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. (C)</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. (C)</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. (B)</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. (B)</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. (D)</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. (A)</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. (C)</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. (C)</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. (A)</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. (A)</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. (B)</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. (B)</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. (B)</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). (D)</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. (B)</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. (B)</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. (B)</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. (B)</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. (C)</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. (D)</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. (C)</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. (B)</p> Signup and view all the answers

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