Study Guide for Linear Motion Video

Answer the questions below on your own paper. Be sure to follow procedure VI b. The answers are due at the end of class. Do not turn in this study guide with your answers.

1. What two things do you have to know in order to calculate the speed of an object?

2. What three things do you have to know in order to calculate the velocity of a object?

3. What is the equation used to calculate speed?

4. What is the abbreviation for speed or velocity?

5. If you travel for half an hour at a speed of 60km/h how far have you gone?

6. Based on #5 what is the equation used to calculate the distance an object travels if you know its velocity and the time?

7. Fill in the blank: Acceleration is equal to the ____ in velocity _____ by the time interval.

8. What is the acceleration of an object traveling at constant velocity?

9. Is it possible for an object to accelerate at constant speed? Explain.

10. Is it possible for an object to accelerate at constant velocity? Explain.

11. What two controls in a car affect its speed?

12. What control of a car affects its velocity without changing its speed?

13. If you are in a car how can you tell the difference between motion at constant velocity and no motion at all?

14. If you are in a car with the windows covered how can you tell the difference between motion at constant velocity and no motion at all?

15. What is the acceleration due to gravity on earth (Ignore air resistance)?

16. Acceleration is abbreviated ‘a’ but if that acceleration is due to gravity what is the abbreviation?

17. What is the velocity of a freely falling object at the surface of the earth after 5s?

18. What is the formula used to calculate how far a freely falling object falls after a known time interval? (Provided, of course, it starts at rest!)

19. If an object is thrown up with an initial speed of 30m/s how fast will it be going when it returns to the point where it started?

20. What is the acceleration of the object that you threw up in #19 on the way up; on the way down?

21. What is the acceleration of the object in #19 when it reaches the top of its path just before it starts back down?

22. What is the speed of the object in #19 when it reaches the top of its path just before it starts back down?

23. Based on your answer to #22 is it possible for an object to accelerate with a speed of 0m/s

24. Does the acceleration of an object thrown upwards ever change while it is in the air?

25. If you throw an object downwards with a velocity of 20m/s what is its acceleration when it leaves your hand?