Speed and Velocity

Using this data, calculate Braden’s average speed on his bicycle.

• 1 m/s

• 4 m/s

• 5 m/s

• 25 m/s

A turtle relay was set up for the turtles to race at a straight distance of 25 meters. The turtle that reached 25 meters first was the winner. The fastest turtle at this event completed the race in 16.8 seconds. What was the approximate speed of the turtle that traveled the fastest?

• 0.056 meters per second

• 1.45 meters per second

• 1.42 meters per second

Which statement correctly explains the motion of the car based on the graph?

• The car moves at a constant velocity for 5 seconds then turns right and moves at a constant velocity for 5 seconds.

• The car moves at a constant velocity for 5 seconds then stops for 5 seconds.

• The car moves at a constant speed of 25 m/s and then stops.

• The car moves at a constant speed of 5 m/s then decreases to a speed of 2.5 m/s.

To calculate your speed and determine your velocity for walking from the shop to school along the street in 120 seconds, what should you do?

• Calculate speed as total distance divided by time, and velocity as displacement divided by time, noting that speed is scalar and velocity is vector.

• Calculate both speed and velocity as total distance divided by time, since they are the same.

• Calculate speed as displacement divided by time, and velocity as total distance divided by time.

• Only calculate speed, as velocity is not relevant in this scenario.

Demonstrate an understanding of calculating speed. Explain how you would calculate speed in a given scenario.

• Speed is calculated by dividing the distance traveled by the time taken (Speed = Distance / Time).

• Speed is calculated by multiplying the distance traveled by the time taken (Speed = Distance x Time).

• Speed is calculated by adding the distance and time together (Speed = Distance + Time).

• Speed is calculated by subtracting the time taken from the distance traveled (Speed = Distance - Time).

What is the main difference between speed and velocity?

• Speed is a scalar quantity (only magnitude), while velocity is a vector quantity (magnitude and direction).

• Speed is measured in meters, while velocity is measured in seconds.

• Speed can be negative, but velocity is always positive.

• Speed and velocity are always equal in value.

Chloe drives from Manhattan to New Jersey to visit a friend. She travels along the Hudson River for 8.2 km, crosses the George Washington Bridge for 1.8 km, and drives another 4.5 km to her destination. Her trip is shown in the image.

The black path on the map indicates the ​ (a)   traveled. The white arrow on the map represents Chloe’s ​ (b)   .

• distance
• displacement
• velocity
• speed

A cyclist travels a distance of 30 kilometers in 1.5 hours. What is the average speed of the cyclist in kilometers per hour?

• 15 km/h

• 20 km/h

• 25 km/h

• 30 km/h

What is the formula to calculate average speed when given total distance and total time?

• Average Speed = Total Distance / Total Time

• Average Speed = Total Time / Total Distance

• Average Speed = Total Distance + Total Time

• Average Speed = Total Distance - Total Time

Bill runs 400 meters to Andy's house, turns around, and runs 400 meters back home.  What is Bill's distance?

• 0 meters
• 400 meters
• 800 meters
• 1600 meters