1.
The units for speed in the metric system are _____________________.
The units for velocity in the metric system are 2.
______________________.
3. The units for speed in the American System are ______________________.
4. What is the difference between speed and velocity?
5. What is the difference between instantaneous and average values?
6. A car travels 50 m in 20 s. Find the average speed of the car.
Freddy Fly walked 7 cm up a wall, turned right and walked another 5 cm and then walked back down the wall 7 cm. His journey took 1 minute. Draw a diagram of Freddy’s walk.
At what average speed did Freddy walk? What was Freddy’s average velocity from his starting point? 8. A fast car (Car A) and a slow car (Car B) both travel the same distance. Which car takes more time to do this? 9. A teacher walks back and forth in front of the room during a lesson. They start at one end of the desk and walk from the door to the windows, a distance of 4.0m in 5 s. They then stop, turn around and walk 2.0 m back toward the door in 3 s. They stop here for 10 s and then walk 3 meters toward the door in 6 s.
What is the average speed of the teacher over the entire 24 s interval?
d = What was the average velocity of the teacher over the entire 24s interval?
Δx = 10.
An expecting grandparent paces back and forth down the hallway in the hospital in front of a water fountain. They walk 20 m in 3 minutes away from the fountain then turn around and walk 10 m back toward the fountain in 4 minutes. The grandparent then walks away from the fountain covering 40 meters in 6 minutes.
Find the average speed of the grandparent for each interval of time
3 min.
4 min.
6 min.
11.
Calculate the average speed of a cheetah that runs 140 meters in 5 seconds.
8 m/s. How far does a 12. Light travels at a constant speed of 3x10
beam of light travel in 6 s?
13. We drive at a speed of 20 km/h for 3 hours. Then we drive 4 hours at 30 km/h. What is our average speed?