Speed Velocity and Distance Time Graph III

What is speed defined as?

• The total distance covered in a journey

• The rate of change of position in a certain direction

• The distance traveled by an object in a unit of time

• The rate at which an object changes its velocity

Which of the following is a vector quantity?

• Speed

• Distance

• Time

• Velocity

What is the SI unit of speed?

• Miles per hour (mph)

• Centimeters per second (cm/s)

• Meters per second (m/s)

• Kilometers per hour (km/h)

If an object is moving at a constant speed in a straight line, what can be said about its average speed and average velocity?

• Average velocity is greater than average speed

• They are always different

• They are equal

• Average speed is greater than average velocity

What does a horizontal line on a distance-time graph indicate?

• The object is moving at a constant speed

• The object is stationary

• The object is accelerating

• The object is moving back towards the starting point

What is the formula for calculating average speed?

• Speed x Time

• Distance x Time

• Time / Distance

• Distance / Time

Which of the following statements about velocity is true?

• Velocity includes both speed and direction

• Velocity is a scalar quantity

• Velocity can never be negative

• Velocity is always equal to speed

What does a steeper slope on a distance-time graph represent?

• Higher speed

• Constant speed

• No movement

• Lower speed

If a car travels 150 kilometers in 3 hours, what is its average speed?

• 50 km/h

• 75 km/h

• 25 km/h

• 100 km/h

What is the average velocity of an object that travels 100 meters north and then returns to the starting point?

• 100 m/s

• 0 m/s

• 200 m/s

• 50 m/s