What is the definition of velocity as described in the passage?

• The rate of change of an object's position with respect to time and a frame of reference

• The shortest distance from the initial to the final position

• The speed of an object without considering direction

• The time taken for an object to return to its starting point

How is average velocity calculated according to the passage?

• By dividing the displacement by the time interval

• By multiplying speed by time

• By adding initial and final velocities

• By measuring the total distance traveled

Why is the average velocity zero when running around a circular track and returning to the starting point?

• Because the displacement is zero

• Because the speed is constant

• Because the time taken is zero

• Because the direction changes

In which field is velocity used to calculate the speed needed to launch satellites into orbit?

• Aerospace engineering

• Meteorology

• Sports

• Transportation

What educational activity is suggested in the passage to help students understand velocity?

• Measuring time taken and distance covered to calculate average velocity

• Using radar guns to track speed

• Designing machinery and vehicles

• Predicting weather patterns