Question 1:
Which is a vector quantity?
- a. velocity (Correct)
- b. speed
Explanation: Velocity is a vector quantity because it has both magnitude and direction, whereas speed is a scalar quantity as it only has magnitude.
Question 2:
What is the difference between distance and displacement?
- a. Distance is the difference between how quickly you move between two points. Displacement is the average of that motion
- b. Distance is measured in feet. Displacement is measured in meters
- c. Distance is a measure of length of travel. Displacement is the measure of the time it takes to move that length
- d. Distance is the length of travel. Displacement is the straight line distance between the starting point and the ending point (Correct)
Explanation: Distance refers to the total length of the path traveled, regardless of direction, while displacement is a vector quantity that represents the shortest straight-line distance from the starting point to the ending point, along with the direction.
Question 3:
Choose all of the following that represent scalars.
- a. position
- b. volume (Correct)
- c. mass (Correct)
- d. velocity
- e. time (Correct)
- f. acceleration
Explanation: Scalars are quantities that are described only by a magnitude. In this case, volume, mass, and time are scalars. Position, velocity, and acceleration are vector quantities, as they have both magnitude and direction.