1. If you have NOT turned in your homework yesterday, then TODAY is your last chance to do so!!! If you have turned it in then KEEP QUIET!!!

2. REVIEW FOR TODAY’S TEST

3. A ball rests on the ground. If the earth is moving around the sun at the speed of 30 km/s, how fast is the ball moving with respect to the ground? The sun? 1.0 km/s, 0 km/s 2.0 km/s, 30 km/s 3.30 km/s, 30 km/s 4.30 km/s, 0 km/s

4. A ball is thrown straight up. At the top of its path, its instantaneous speed is 1.0 m/s 2.About 5 m/s 3.About 10 m/s 4.About 50 m/s

5. A ball is thrown straight up. At the top of its path, its acceleration is 1.0 m/s 2.About 5 m/s 3.About 10 m/s 4.About 50 m/s

6. If a ball were equipped with a speedometer and allowed to fall freely on a planet where acceleration due to gravity is 23 m/s/s, the reading on the speedometer would increase each second by 1.10 m/s 2.20 m/s 3.23 m/s 4.40 m/s

7. A freely falling object starts from rest. After falling 1 second, it will have a speed of about 1.0 m/s 2.5 m/s 3.10 m/s 4.50 m/s

8. If you drop a feather and a coin in a vacuum tube, which will reach the bottom of the tube first? Neither – both will reach the bottom at the same time The coin The feather

9. True/False: If false, change the italicized words to correct it. Speed is velocity with a direction Velocity is speed with a direction

10. Essay Questions What are the steps for the Scientific method? Give two ways by which speed is different from velocity.

11. UNITS Distance Meters Time Seconds Speed Meters / second Acceleration Meters / second squared or Meters / second / second

12. Acceleration due to gravity Letter used to represent this g Value on Earth 10 m/s/s

13. A car starts from rest and after 7 seconds it is moving at 42 m/s. What is the car’s acceleration? 1.5 m/s/s 2.10 m/s/s 3.6 m/s/s 4.20 m/s/s

14. A freely falling object starts from rest. After falling for 5 seconds, it will have a speed of about 1.5 m/s 2.10 m/s 3.50 m/s 4.100 m/s

15. What is the speed of a dog who runs 30 m in 10 seconds 1.30 m/s 2.10 m/s 3.3 m/s 4.5 m/s

16. Remember DO NOT WRITE ON THE TEST. Answer all questions except Multiple choice on the blank sheet of paper provided. You will need a calculator for the test False statements in True/False have to be corrected