What is the main difference between speed and velocity as described in the passage?

• Speed is a scalar quantity, while velocity is a vector quantity.

• Speed considers direction, while velocity does not.

• Speed is always greater than velocity.

• Velocity is a scalar quantity, while speed is a vector quantity.

How is average speed calculated according to the passage?

• By dividing the total distance traveled by the time taken.

• By dividing the change in position by the change in time.

• By multiplying the speed by the time taken.

• By adding the initial and final speeds and dividing by two.

What does it mean if an object has zero velocity?

• The object has not changed its position.

• The object is moving at a constant speed.

• The object is moving in a circular path.

• The object is accelerating.

Which of the following best describes instantaneous speed?

• The speed of an object at any given moment.

• The average of all speeds over a period.

• The speed of an object in a specific direction.

• The total distance covered divided by time.

What happens to the velocity of a person who moves rapidly but returns to their starting point?

• The velocity is zero because there is no net change in position.

• The velocity is equal to the speed because they moved rapidly.

• The velocity is negative because they returned to the start.

• The velocity is positive because they moved rapidly.