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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. The energy due to the position that a body occupies relative to the earths surface
Newton (N)
Potential Energy
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
i = F*t

2. The frictional force between two surfaces when there is movement between the surfaces
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
Kinetic Friction
s
Fk

3. Symbol of Impulse
Free Body Diagram
I
Fk
SE = 1/2kx^2

4. The rate of the mechanical work done by a force
Power
Center of Gravity
Torque
N*s

5. Symbol for gravity
Mass
Fs = Us * R
p = mv
g

6. Point around which a body's weight is equally balanced - no matter how the body is positioned.
SE = 1/2kx^2
Center of Gravity
h
Types of friction

7. Equation of Force
s
F=ma
Free Body Diagram
P

8. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
Joule (J)
symbol for momentum
concentric force
Frictional Force

9. SI unit for mechanical energy
s
P
Joule (J)
Kinematics

10. Kinetic friction
Fk
Fk = Uk * R
concentric force
Uk

11. Rearrangement of equation for Power
symbol for momentum
P = F * (s/t)
N*s
W

12. Equation for Potential Energy
PE = mgh
Normal reaction force
Types of friction
SE = 1/2kx^2

13. Quantity of matter contained in an object
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Mass
Fs
Force

14. Symbol for displacement
P = F * v
KE = 1/2 mv^2
s
if an object is at rest or moving with a constant velocity then the forces on it must be...

15. Newton's 1st Law of motion (law of inertia)
N*s
PE = mgh
m
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force

16. Force acting perpendicular to two surfaces in contact
Forms of mechanical energy
Normal reaction force
Kinetics
h

17. Tendency of a body to resist a change in its state of motion
P
g
Frictional Force
Inertia

18. Symbol for power - measured in Watts (W)
Forms of mechanical energy
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
Mechanical energy
P

19. Symbol of mass
PE = mgh
m
I = F * t
Kinetic Energy

20. Coefficient of kinetic friction
g
P = F * v
Uk
I = F * t

21. Equation for static friction
I = F * t
Fs = Us * R
Impulse
Inertia

22. Equation for kinetic friction
SE = 1/2kx^2
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
Fk = Uk * R
P

23. Physical quantity that is completely described by its magnitude (mass - volume - length)
Scalar
I = F * t
Fs
Center of Gravity

24. SI unit for impulse
Linear momentum
N*s
Vector
P = (F*s)/t

25. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Kinetics
Kinematics
h
Power

26. Symbol for torque
T
Types of friction
I = F * t
symbol for momentum

27. P
Us
symbol for momentum
Work
s

28. Static friction
if an object is at rest or moving with a constant velocity then the forces on it must be...
s
F=ma
Fs

29. SI unit of Force
k
Newton (N)
P = F * v
p = mv

30. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
i
PE = mgh
Free Body Diagram
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

31. Equation of Power equals Strength times Speed
I
W = F * s
W
P = F * v

32. A force acting away from the CoG of a body induces translation AND rotation
Newton (N)
i = F*t
Eccentric Force
Linear momentum

33. Coefficient of static friction
Joule (J)
Force
Us
Fs = Us * R

34. Static - Kinetic - and Rolling
Fs = Us * R
Work
Types of friction
Kinetic Friction

35. Kinetic energy (KE) and Potential Energy (PE)
k
Mechanical energy
Forms of mechanical energy
a = F/m

36. Equation for Kinetic Energy
P
if an object is at rest or moving with a constant velocity then the forces on it must be...
KE = 1/2 mv^2
i

37. Symbol of inertia
Scalar
Uk
i
s

38. Symbol for height above ground
Eccentric Force
h
Mechanical energy
Kinetic Friction

39. The frictional force between two surfaces when there is no movement between the surfaces
Mechanical energy
Static Friction
Uk
if an object is at rest or moving with a constant velocity then the forces on it must be...

40. Product of mass and linear velocity
symbol for momentum
Linear momentum
T
m

41. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Fs
Vector
i
Net Force

42. The energy a body possesses due to its movement
Net Force
concentric force
Kinetic Energy
F=ma

43. A force acting through the CoG of a body induces translation
concentric force
Center of Gravity
Us
m

44. Equation for momentum
a = F/m
p = mv
Vector
symbol for momentum

45. Resultant force derived from the composition of two or more forces
Kinetic Energy
Inertia
Us
Net Force

46. Equation for Impulse
Fs
I = F * t
Strain Energy
SE = 1/2kx^2

47. Newton's 2nd Law of Motion (law of acceleration)
Kinetics
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
T
Kinematics

48. Rotary effect of a force
T
P
Torque
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force

49. The spring constant
Vector
k
a
i

50. Equation for acceleration
Kinetics
i = F*t
a = F/m
k