1. For an inclined plane, FN is equal to
Equations to memorize
For an inclined plane, FN is equal to
Fg┴=Fgcosθ=mg(cosθ)

2. FgII=Fgsinθ=mg(sinθ)
Equations to memorize
For an inclined plane, FgII is equal to
FgII=Fgsinθ=mg(sinθ)

3. Equations to memorize
For a force applied at an angle, the horizontal (or force parallel to the surface) equals
FAX=FAcosθ

4. The equation for the circumference of a circle
Equations to memorize
The equation for the circumference of a circle
C=2πr

5. Equation for centripetal force (combined version not on Ref Table)
Equations to memorize
Equation for centripetal force (combined version not on Ref Table)
Fc= 𝑚 𝑣 2 𝑟

6. Equations to memorize
Equation for change in momentum = impulse (long version of Newton’s Second Law)
Fnett=mΔv

7. Angle of a resultant given horizontal and vertical components
Equations to memorize
Angle of a resultant given horizontal and vertical components
Θ=tan-1(Ay/Ax)

8. Equations to memorize
Equation for slope
Slope = (Δy/Δx)

9. [(x-value)(y-value)]/2
Equations to memorize
Equation for area of a sloped (triangle) graph
Area = 1/2bh or
[(x-value)(y-value)]/2

10. Equation for area of a straight line (rectangular) graph
Equations to memorize
Equation for area of a straight line (rectangular) graph
Area = bh or
(x-value)(y-value)

11. Equation for Fs when a mass is applied vertically
Equations to memorize
Equation for Fs when a mass is applied vertically
Fs=Fg=mg
(or kx=mg)

12. Inverse or inverse square
Name the type of relationship represented by the graph
Inverse or inverse square

13. Name the type of relationship represented by the graph
Direct

14. Name the type of relationship represented by the graph
Direct Square

15. A quantity in which both direction and magnitude are important
Vocabulary or concept
A quantity in which both direction and magnitude are important
Vector

16. Vocabulary or Concept
Another word for mass
Inertia

17. Vocabulary or Concept
Mass x velocity =
Momentum or impulse

18. Vocabulary or Concept
The area where an object feels the force of another object with the same fundamental force carrier
Field

19. The word for the “size” of a measurement
Vocabulary or Concept
The word for the “size” of a measurement
Magnitude

20. Vocabulary or Concept
When trying to solve for an unknown force using a force diagram, what 2 questions must you answer?
What axis (x, y, or II)?
Is it at equilibrium?

21. Term for the sum of two vector quantities
Vocabulary or Concept
Term for the sum of two vector quantities
Resultant

22. Constant velocity or equilibrium
Vocabulary or Concept
The term for an object that is not experiencing acceleration
Constant velocity or equilibrium

23. The center of the circle
Vocabulary or Concept
The force causing an object to move in a circular path is always directed to
The center of the circle

24. Remains the same (Fg changes)
Vocabulary or Concept
As an object moves further from the center of a planet, the mass of the object
Remains the same (Fg changes)

25. Vocabulary or Concept
For an object moving in a circle, at any point the velocity is directed
Tangent to the circle

26. To the center of the circle
Vocabulary or Concept
Centripetal acceleration is directed
To the center of the circle

27. Vocabulary or Concept
To determine the force of friction on an object that is remaining at rest you must use the coefficient of ____________ friction
static

28. Vocabulary or Concept
For an object in motion, the _____________ coefficient of friction must be used
kinetic

29. The gravitational force is always
Vocabulary or Concept
The gravitational force is always
attractive

30. Perpendicular to the surface
Vocabulary or Concept
The normal force is the force from a surface that always points
Perpendicular to the surface

31. Net Force always agrees with
Vocabulary or Concept
Net Force always agrees with
acceleration

32. If acceleration is constant, Fnet will be
Vocabulary or Concept
If acceleration is constant, Fnet will be
Constant (uniform)

33. Vocabulary or Concept
During a collision the momentum of the system before the event always equals
Momentum after

34. Vocabulary or Concept
For any given change in momentum an increase in time will cause Fnet to
decrease

35. The rate in change of momentum is known as
Vocabulary or Concept
The rate in change of momentum is known as
Fnet = 𝑚∆𝑣 𝑡 = ∆𝑝 𝑡

36. STATE VARIABLE
Normal Force FN

37. STATE VARIABLE
Net force
Fnet

38. STATE VARIABLE
Spring constant k

39. Coefficient of friction
STATE VARIABLE
Coefficient of friction

40. STATE VARIABLE
mass m

41. STATE VARIABLE
Weight Fg

42. Parallel component of weight
STATE VARIABLE
Parallel component of weight
FgII

43. Change in equilibrium length of a spring
STATE VARIABLE
Change in equilibrium length of a spring x

44. STATE VARIABLE
Spring Force Fs

45. STATE VARIABLE
Centripetal Force Fc

46. Centripetal acceleration
STATE VARIABLE
Centripetal acceleration ac

47. Distance between two objects
STATE VARIABLE
Distance between two objects r

48. STATE VARIABLE
Radius of circle r

49. Gravitational field strength
STATE VARIABLE
Gravitational field strength g

50. Universal Gravitational constant
STATE VARIABLE
Universal Gravitational constant G

51. Acceleration due to gravity
STATE VARIABLE
Acceleration due to gravity m

52. STATE VARIABLE
Frictional Force Ff

53. STATE VARIABLE
Impulse J

54. STATE VARIABLE
Momentum p

55. STATE VARIABLE
time t