1. Chapter 5 Physics 1 Projectile Motion Go through these flashcards at least once a day to get an “A”!

2. For a vector, the arrow represents the ________ and _______ of the quantity.

3. magnitude and direction

4. True or False: Velocity is a scalar quantity

5. False, it’s a vector quantity

6. A scalar quantity includes only ___________.

7. magnitude

8. Example of a vector quantity

9. Force, acceleration, velocity

10. Example of a scalar quantity

11. Time, mass, volume, speed

12. An airplane flies in the same direction as the wind. The velocity of the airplane is the sum of the airplane’s velocity relative to the air and the wind’s velocity relative to the ground. True or False?

13. True

14. The result of adding two vectors is called the ___________.

15. The resultant

16. The resultant of a 3 unit and 4 unit vector that are perpendicular is __________.

17. 5 units

18. Any vector can be resolved, or broken, into an equivalent set of two______________ vectors at right angles to each other.

19. Horizontal and vertical

20. True or False? The two perpendicular components of a vector are independent of one another.

21. True

22. The _____ component of velocity in projectile motion always changes with time.

23. vertical

24. The relationship between the horizontal and vertical components of velocity is _____.

25. Independent. Don’t affect one another.

26. Ignoring air resistance, the horizontal velocity of a projectile is ____________.

27. constant

28. The vertical motion of a projectile is the same as that of a _____.

29. Freely falling object

30. The path that a ball follows when it rolls off a horizontal desk is _____.

31. curved

32. The path of a projectile with constant horizontal velocity and a downward acceleration due to gravity is ____.

33. A parabola

34. The path of a projectile is called its _____.

35. trajectory

36. The curved path of a projectile is caused by _______.

37. Gravity and (constant horizontal velocity and increasing vertical velocity)

38. The equation for the distance a projectile falls below an imaginary straight line is _____.

39. D=1/2gt 2

40. The vertical component of a projectile’s velocity at the top of its path is _______.

41. zero