Show your calculations and remember to label!
1. If your bus travels 400m in 20 seconds, what is your bus’ speed? 2. If you move down the 6th grade hallway that is 50 meters in 10 seconds, what is your speed? 3. You arrive in my class 45 seconds after leaving math which is 90 meters away. What speed did you travel?
4. A plane travels 395,000 meters in 9000 seconds. What was its speed? 5. It takes Jordan 40 minutes to walk to school. Her route is 160 m long. What is Jordan’s average speed on her walk to school? 6. If a rocket travels 5600 km in 3.00 hours, what is its speed? 7. Calculate the speed of a cheetah that runs 140 meters in 5 seconds. 8. If Noah throws a football 50 meters in 3 seconds, what is the speed of the football? 9. Mrs. Meginnis’ car was detected exceeding the posted speed limit of 60 kilometers per hour, how fast was she going if she had covered a distance of 150 kilometers in 2.5 hours? 10. Why did she get a ticket even though her average speed equaled the speed limit? Velocity Sometimes, you will hear people use velocity to describe speed. Velocity and speed are very similar. Scientists define velocity as speed with direction. For example, if I’m running 10 meter/second heading north, my velocity would be 10 meters/second heading north. My speed would just be 10 meters/second. This seems like a small difference, but direction plays a big role in science especially when you start talking about physics. To calculate the velocity of something, you would simply divide the distance by the time. Average velocity = total distance covered time Hopefully, the formula looks very familiar. It should because it is the same as the speed formula. The only difference would be how we report the answer. For example, if I’m running on a path heading north and cover 400 meters in 50 seconds, I can calculate my velocity: Average velocity = total distance covered = 400 m = 8 meters/second time 50 seconds I would say that my average velocity is 8 m/sec heading north. The only difference between speed and velocity is that last piece “heading north.” That is the direction part which makes this velocity. 11. A vehicle travels 2345 m in 315 s west toward the evening sun. What is its velocity? 12. A shopping cart is pushed 15.6 meters west across a parking lot in 5.2 seconds. What is the velocity of the shopping cart?
13. A girl scout troop hiked 5.8 kilometers southeast in 1.5 hours. What was the troop’s velocity?
14. What is the velocity of a car that travels 100.0 meters, northeast in 4.65 seconds?
15. How are speed and velocity different?