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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. SI unit for mechanical energy
P = (F*s)/t
Joule (J)
h
Scalar

2. Product of mass and linear velocity
Work
Linear momentum
T
Free Body Diagram

3. The capacity to do mechanical work
Strain Energy
Mechanical energy
if an object is at rest or moving with a constant velocity then the forces on it must be...
Normal reaction force

4. Symbol of inertia
i
F=ma
Torque
Force

5. Equation for work
Static Friction
s
W = F * s
N*s

6. Symbol for height above ground
symbol for momentum
Fs
h
W = F * s

7. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
Force
Eccentric Force
Free Body Diagram
P = F * v

8. Coefficient of kinetic friction
Fk = Uk * R
Uk
Newton (N)
a = F/m

9. A force acting away from the CoG of a body induces translation AND rotation
Eccentric Force
P
Scalar
Free Body Diagram

10. Force acting perpendicular to two surfaces in contact
Mass
m
Torque
Normal reaction force

11. Equation for Impulse
Mass
m
I = F * t
Joule (J)

12. The frictional force between two surfaces when there is movement between the surfaces
Kinetic Friction
Forms of mechanical energy
T
k

13. Equation for acceleration
Static Friction
a = F/m
F=ma
Net Force

14. The frictional force between two surfaces when there is no movement between the surfaces
W
m
W = F * s
Static Friction

15. Tendency of a body to resist a change in its state of motion
Force
i
Inertia
i = F*t

16. Quantity of matter contained in an object
Work
m
i
Mass

17. Newton's 3rd Law of Motion (law of reaction)
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
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
Static Friction
F=ma

18. Equation for Kinetic Energy
Us
Fk
KE = 1/2 mv^2
F

19. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Force
Vector
P = F * (s/t)
I = F * t

20. Symbol for power - measured in Watts (W)
h
Fs = Us * R
P
F

21. The energy a body possesses due to its movement
s
Fk = Uk * R
Kinetic Energy
i

22. SI unit for impulse
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
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

23. Equation of Force
F=ma
a
W = F * s
Strain Energy

24. Equation for static friction
Kinetic Friction
Types of friction
i
Fs = Us * R

25. Equation for Power
KE = 1/2 mv^2
P = (F*s)/t
Work
concentric force

26. 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
p = mv
h
Work
N*s

27. Symbol of mass
P
Kinetic Friction
m
F

28. Symbol of Impulse
Torque
I
Power
PE = mgh

29. The energy due to the position that a body occupies relative to the earths surface
Potential Energy
Scalar
F=ma
Free Body Diagram

30. Symbol for Watts
W
P = (F*s)/t
KE = 1/2 mv^2
Free Body Diagram

31. Newton's 2nd Law of Motion (law of acceleration)
s
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
Scalar

32. Equation for momentum
Vector
i = F*t
a
p = mv

33. Symbol for gravity
g
Impulse
N*s
s

34. Symbol for acceleration
a
m
Free Body Diagram
Kinetics

35. Equation for Strain enegy
i
SE = 1/2kx^2
symbol for momentum
Us

36. Equation for Potential Energy
PE = mgh
symbol for momentum
Torque
Fk

37. Equation of impulse
Kinematics
Potential Energy
Types of friction
i = F*t

38. SI unit of Force
T
k
Newton (N)
h

39. Point around which a body's weight is equally balanced - no matter how the body is positioned.
symbol for momentum
SE = 1/2kx^2
Center of Gravity
Work

40. Physical quantity that is completely described by its magnitude (mass - volume - length)
Fs = Us * R
Torque
concentric force
Scalar

41. Rearrangement of equation for Power
P = F * (s/t)
N*s
P = (F*s)/t
Static Friction

42. Symbol for torque
symbol for momentum
T
P = F * (s/t)
Mechanical energy

43. Resultant force derived from the composition of two or more forces
m
Center of Gravity
Net Force
Fk = Uk * R

44. Equation of Power equals Strength times Speed
Power
P = F * (s/t)
T
P = F * v

45. The study of what causes motion (describes the forces that cause motion)
F
Fs = Us * R
g
Kinetics

46. The spring constant
Vector
Net Force
k
Fk

47. Static friction
k
Fk = Uk * R
Fs
i

48. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
h
Frictional Force
I = F * t
T

49. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Inertia
Types of friction
F
Kinematics

50. Potential energy due to an objects form
Power
N*s
Mechanical energy
Strain Energy