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Mechanical Analysis

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Coefficient of static friction
Power
s
Us
g

2. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
if an object is at rest or moving with a constant velocity then the forces on it must be...
Vector
Types of friction
concentric force

3. Symbol for torque
T
W = F * s
Kinetic Friction
Potential Energy

4. Tendency of a body to resist a change in its state of motion
W
Strain Energy
Inertia
m

5. The spring constant
k
SE = 1/2kx^2
Center of Gravity
Linear momentum

6. SI unit for impulse
Inertia
N*s
i = F*t
Types of friction

7. Equation for Strain enegy
W
SE = 1/2kx^2
Force
Power

8. Equation of impulse
k
i = F*t
W
a = F/m

9. The energy due to the position that a body occupies relative to the earths surface
Potential Energy
if an object is at rest or moving with a constant velocity then the forces on it must be...
Kinetics
F

10. Quantity of matter contained in an object
T
PE = mgh
Work
Mass

11. The rate of the mechanical work done by a force
P = F * (s/t)
Static Friction
Power
k

12. Potential energy due to an objects form
Kinematics
Strain Energy
Vector
I = F * t

13. Symbol of Force
h
Fs = Us * R
F
Vector

14. Static - Kinetic - and Rolling
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
PE = mgh
P = F * v
Types of friction

15. Mechanical work is equal to the product of magnitude of the force is applied to an object and the displacement undergone by the object in the direction that the force is being applied
Potential Energy
Work
i = F*t
Free Body Diagram

16. Symbol for displacement
Linear momentum
s
Fk = Uk * R
Kinetic Friction

17. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
Frictional Force
i = F*t
KE = 1/2 mv^2
F

18. P
F
symbol for momentum
i
Mechanical energy

19. Symbol for Watts
i
W
F
Forms of mechanical energy

20. zero OR balanced
concentric force
if an object is at rest or moving with a constant velocity then the forces on it must be...
Linear momentum
Fk

21. The frictional force between two surfaces when there is no movement between the surfaces
Static Friction
Free Body Diagram
Center of Gravity
Kinetic Friction

22. Physical quantity that is completely described by its magnitude (mass - volume - length)
Center of Gravity
T
Scalar
Mechanical energy

23. Newton's 3rd Law of Motion (law of reaction)
Uk
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
When two objects are in contact - the force applied by one object is equal and opposite to that which the second object applies on the first
N*s

24. A force acting away from the CoG of a body induces translation AND rotation
Power
Eccentric Force
a
Static Friction

25. Resultant force derived from the composition of two or more forces
W
Torque
Net Force
P = (F*s)/t

26. Equation for Potential Energy
PE = mgh
F=ma
Scalar
i = F*t

27. The capacity to do mechanical work
P = F * v
a = F/m
PE = mgh
Mechanical energy

28. Force acting perpendicular to two surfaces in contact
Torque
F
Free Body Diagram
Normal reaction force

29. SI unit of Force
Newton (N)
I
Impulse
W

30. Equation for Impulse
if an object is at rest or moving with a constant velocity then the forces on it must be...
I = F * t
g
W

31. Rearrangement of equation for Power
I = F * t
P = F * (s/t)
Us
Kinematics

32. Equation for Power
Center of Gravity
P = (F*s)/t
F
Joule (J)

33. Equation for momentum
Work
Static Friction
a
p = mv

34. Point around which a body's weight is equally balanced - no matter how the body is positioned.
i
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
Center of Gravity
P

35. The energy a body possesses due to its movement
P = F * v
Kinetic Energy
Fk
Newton (N)

36. Symbol for gravity
P = (F*s)/t
Fs
m
g

37. Symbol for height above ground
Eccentric Force
Work
h
Force

38. The frictional force between two surfaces when there is movement between the surfaces
Kinetic Friction
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
Strain Energy
I

39. Equation of Power equals Strength times Speed
P = F * v
Work
Force
T

40. Coefficient of kinetic friction
Fk
m
Us
Uk

41. SI unit for mechanical energy
Joule (J)
W
I
Force

42. The study of what causes motion (describes the forces that cause motion)
Free Body Diagram
PE = mgh
Types of friction
Kinetics

43. Kinetic friction
Fk
k
PE = mgh
i = F*t

44. Kinetic energy (KE) and Potential Energy (PE)
concentric force
Forms of mechanical energy
Torque
symbol for momentum

45. Product of force X time over which the force acts
Impulse
P = F * (s/t)
The rate of change of motion (or acceleration for a body/object of constant mass) is proportional to - and in the same direction as - the force applied to it
Potential Energy

46. Symbol of inertia
Work
i
Kinetic Friction
P = F * (s/t)

47. Symbol of mass
if an object is at rest or moving with a constant velocity then the forces on it must be...
Fs = Us * R
m
P = F * (s/t)

48. Symbol of Impulse
Kinetic Energy
Frictional Force
Static Friction
I

49. Equation for static friction
Power
P = F * (s/t)
a = F/m
Fs = Us * R

50. Rotary effect of a force
Torque
Kinematics
Mass
Strain Energy