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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 of Force
Newton (N)
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
m
p = mv

2. Point around which a body's weight is equally balanced - no matter how the body is positioned.
Fs
I
Center of Gravity
Eccentric Force

3. Equation for Impulse
Kinetic Energy
Uk
Force
I = F * t

4. Kinetic energy (KE) and Potential Energy (PE)
i
W
Forms of mechanical energy
Us

5. A force acting away from the CoG of a body induces translation AND rotation
P = F * v
Eccentric Force
I = F * t
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force

6. Equation for 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
Fk = Uk * R
Kinematics
Mechanical energy

7. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Kinematics
Joule (J)
i
Kinetic Energy

8. Equation for acceleration
Force
a = F/m
N*s
h

9. Newton's 1st Law of motion (law of inertia)
a
m
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Power

10. SI unit for mechanical energy
Joule (J)
Normal reaction force
P = (F*s)/t
Work

11. Coefficient of kinetic friction
PE = mgh
KE = 1/2 mv^2
Work
Uk

12. Static friction
Mechanical energy
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Fs
Types of friction

13. Rearrangement of equation for Power
concentric force
W
SE = 1/2kx^2
P = F * (s/t)

14. Symbol of Force
F
Fk
Work
i

15. Symbol for height above ground
N*s
Kinematics
P = F * v
h

16. Equation for momentum
p = mv
N*s
F
Mass

17. Symbol for gravity
KE = 1/2 mv^2
g
Mechanical energy
Us

18. Equation for Kinetic Energy
KE = 1/2 mv^2
I = F * t
h
a = F/m

19. Newton's 2nd Law of Motion (law of acceleration)
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
m
P

20. Equation for Potential Energy
PE = mgh
Kinetics
Strain Energy
i

21. 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
F
Potential Energy
Work
Net Force

22. Symbol of inertia
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
Normal reaction force
W = F * s
i

23. The study of what causes motion (describes the forces that cause motion)
PE = mgh
p = mv
Kinematics
Kinetics

24. Equation for Strain enegy
Mechanical energy
SE = 1/2kx^2
Kinematics
Vector

25. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Normal reaction force
Force
i = F*t
T

26. The energy due to the position that a body occupies relative to the earths surface
T
Potential Energy
F
Kinetic Friction

27. Symbol of mass
Mass
Inertia
m
Fs

28. Symbol for power - measured in Watts (W)
KE = 1/2 mv^2
a = F/m
P
F=ma

29. Potential energy due to an objects form
Types of friction
p = mv
Strain Energy
Newton (N)

30. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
h
P = (F*s)/t
Free Body Diagram
Potential Energy

31. The rate of the mechanical work done by a force
Power
g
Kinetic Energy
Linear momentum

32. Newton's 3rd Law of Motion (law of reaction)
P
I = F * t
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
i = F*t

33. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
i
Normal reaction force
Vector
s

34. Force acting perpendicular to two surfaces in contact
Mass
P = F * (s/t)
P = (F*s)/t
Normal reaction force

35. The spring constant
Kinetic Friction
Kinetics
k
Strain Energy

36. SI unit for impulse
Kinetics
P
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
N*s

37. Symbol for torque
T
Power
Kinetic Friction
h

38. The capacity to do mechanical work
I = F * t
Mechanical energy
Scalar
Torque

39. Physical quantity that is completely described by its magnitude (mass - volume - length)
W
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
Scalar
PE = mgh

40. Static - Kinetic - and Rolling
h
Types of friction
symbol for momentum
p = mv

41. Symbol of Impulse
Strain Energy
PE = mgh
I
P = F * v

42. Symbol for displacement
KE = 1/2 mv^2
s
Frictional Force
Normal reaction force

43. Equation of Force
Kinematics
P = (F*s)/t
F=ma
Static Friction

44. Equation for static friction
Forms of mechanical energy
Fs = Us * R
Types of friction
Free Body Diagram

45. Symbol for Watts
W
Scalar
N*s
p = mv

46. Product of mass and linear velocity
k
P
Fs
Linear momentum

47. zero OR balanced
Kinematics
I = F * t
if an object is at rest or moving with a constant velocity then the forces on it must be...
KE = 1/2 mv^2

48. Equation for Power
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
m
P = (F*s)/t
Fk

49. Symbol for acceleration
Center of Gravity
a
Impulse
W = F * s

50. The frictional force between two surfaces when there is movement between the surfaces
p = mv
Static Friction
Kinetic Friction
Inertia