Understanding Speed and Velocity

What is the main difference between speed and velocity?

• Speed includes direction, velocity does not.

• Speed is a vector, velocity is a scalar.

• Speed is a scalar, velocity is a vector.

• Speed and velocity are the same.

How is speed calculated?

• Distance divided by time

• Distance multiplied by time

• Distance plus time

• Time divided by distance

Which of the following is an example of speed?

• 10 km/h

• 5 m/s east

• -20 m/s

• 15 m/s west

What does the sign of velocity indicate?

• The mass of the object

• The direction of the object

• The acceleration of the object

• The speed of the object

How is velocity calculated?

• Final position minus initial position divided by time

• Initial position minus final position divided by time

• Final position plus initial position divided by time

• Initial position plus final position multiplied by time

In the example where an object moves from A to B, what is the average speed if the distance is 25 meters and the time is 15 seconds?

• 1.67 m/s

• 2.5 m/s

• 3.0 m/s

• 1.5 m/s

If an object moves from B to D, covering a distance of 15 meters in 7 seconds, what is the speed?

• 3.0 m/s

• 2.14 m/s

• 1.5 m/s

• 2.5 m/s

In the example where an object moves from C to D and then to A, what is the total distance covered?

• 35 meters

• 30 meters

• 25 meters

• 45 meters

What is the velocity if an object moves from C to A, with C at -20 meters and A at 5 meters, in 15 seconds?

• 2.5 m/s

• 1.5 m/s

• 1.67 m/s

• 3.0 m/s

Why is it important to consider direction when calculating velocity?

• Because velocity is a scalar quantity

• Because velocity is a vector quantity

• Because direction affects the speed

• Because direction does not matter