1 / 12

Speed and Velocity

Speed and Velocity. James Martin Middle School Mrs. Anna Ward. DO NOW!!!!. In the formula: S = D/T, what does the: S stand for? D stand for? T stand for? Calculate the answers using the formula S = D/T:

yanni
Download Presentation

Speed and Velocity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Speed and Velocity James Martin Middle School Mrs. Anna Ward

  2. DO NOW!!!! • In the formula: S = D/T, what does the: • S stand for? D stand for? T stand for? • Calculate the answers using the formula S = D/T: • A bicyclist travels 60.0 kilometers in 3.5 hours. What is the cyclist’s average speed? • How much time would it take for the sound of thunder to travel 1,500 meters if sound travels at a speed of 330 m/sec? • A comet is cruising through the solar system at a speed of 50,000 kilometers per hour for 4 hours time.

  3. Announcements • The Quiz scheduled for tomorrow has been moved to Friday

  4. Agenda • Average Speed vs. Instantaneous Speed • Speed vs. Velocity • Choral Response: Speed and Velocity • Speed practice problems • Racecar lab on Speed

  5. Average Speed Instantaneous Speed • Average Speed is the total distance divided by the total time, the average of all the speeds during a given time • Think about it….if you drive to school from your house, do you travel at the same time for the entire trip? • However, in science class we will use the average speed for our calculations • Your moment-to-moment speed • The speed at any given moment • What the “SPEED LIMIT” is based off of

  6. What is velocity? • Velocity is speed with direction

  7. Speed versus Velocity http://www.youtube.com/watch?v=DRb5PSxJerM

  8. Speed vs. Velocity—Choral Response • Speed is distance over time; Velocity adds in direction

  9. CFUs: • What is speed + direction? • Ms. Lusk’s room is 20 meters from my room. Duante went to take a textbook to her room and it took 20 seconds to get there. What was his speed? • The baseball field is 300 meters away. Alfie is really late to practice, so it only took 60 seconds to get to tothe field. What was his speed? • What is the formula for speed? • What is the formula for velocity? • Ramiro took his dog for a walk around the block. It took him 5 minutes to travel 1 km.

  10. More CFUs: • Kaleeha walks at a rate of 1.5 m/s. She needs to go from Mrs. Ward’s room to the office to pick up a form. It takes her 240 seconds to get to the office and back. How far did she walk? • How far is the office from Mrs. Ward’s room? • Dianelys runs during soccer practice for every day after school. She runs the length of the field many times at every practice. If Ms. Bickett times Dianelys running at a rate of 2.5 m/s for 400 meters, how long does she run? • What is the name for the location of a place or thing? • What is another name for change in position?

  11. Race Car Lab • We are using the same tape marks as Monday (2 m) • Students with stopwatches will be team captains • Please use your quiet partner voices and remember to exceed expectations

  12. EXIT TICKET • Mr. Rudolph lives 16 km from James Martin Middle School. If he drives at an average speed of 2 km/minute, how long will it take him to get home? • Mrs. CVT has a meeting at the CMS Central Secondary Office. If it takes her 20 minutes to get there and she drives at an average rate of 1 km/minute, how far is the office?

More Related