Questions: What is the difference between speed and velocity? Select one: a. Speed only tells how fast an object is moving but velocity tells how fast and in what direction. b. There is no difference between speed and velocity. c. The units are different. d. Speed tells how fast an object is moving and velocity tells how quickly the object changes speed.

What is the difference between speed and velocity?
Select one:
a. Speed only tells how fast an object is moving but velocity tells how fast and in what direction.
b. There is no difference between speed and velocity.
c. The units are different.
d. Speed tells how fast an object is moving and velocity tells how quickly the object changes speed.

Transcript text: What is the difference between speed and velocity? Select one: a. Speed only tells how fast an object is moving but velocity tells how fast and in what direction. b. There is no difference between speed and velocity. c. The units are different. d. Speed tells how fast an object is moving and velocity tells how quickly the object changes speed.

Solution

Solution Steps

Step 1: Understand the Definitions

Speed is a scalar quantity that refers to how fast an object is moving, without regard to direction.
Velocity is a vector quantity that includes both the speed of an object and the direction of its motion.

Step 2: Analyze the Options

Option a: Correctly states that speed is only about how fast an object is moving, while velocity includes direction.
Option b: Incorrect, as speed and velocity are different due to the inclusion of direction in velocity.
Option c: Incorrect, as both speed and velocity can be measured in the same units (e.g., meters per second).
Option d: Incorrect, as velocity does not describe how quickly an object changes speed; that would be acceleration.

Step 3: Select the Correct Option