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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. zero OR balanced
if an object is at rest or moving with a constant velocity then the forces on it must be...
Fk = Uk * R
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
Vector

2. 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
Fk = Uk * R
Potential Energy
Work
i

3. Symbol of inertia
Center of Gravity
a
T
i

4. SI unit for mechanical energy
Joule (J)
Uk
Kinetic Energy
s

5. The spring constant
P = F * v
a
Forms of mechanical energy
k

6. Symbol of mass
P = F * (s/t)
KE = 1/2 mv^2
I
m

7. Force acting perpendicular to two surfaces in contact
Newton (N)
Vector
F=ma
Normal reaction force

8. Newton's 3rd Law of Motion (law of reaction)
a
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
h
W

9. Equation of Force
F=ma
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
I
Normal reaction force

10. Product of mass and linear velocity
P = F * v
Power
Linear momentum
i = F*t

11. SI unit for impulse
N*s
Vector
Potential Energy
Types of friction

12. Symbol for acceleration
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
a
F=ma

13. Equation for static friction
concentric force
Fk
Fs = Us * R
Kinematics

14. Equation for momentum
Fk
p = mv
Kinetic Friction
Torque

15. Symbol of Force
Kinematics
F
a = F/m
Frictional Force

16. Potential energy due to an objects form
g
P = F * v
I
Strain Energy

17. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
Fk = Uk * R
Scalar
Free Body Diagram
Impulse

18. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Fs = Us * R
I = F * t
Vector
Normal reaction force

19. Rearrangement of equation for Power
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
Us
Scalar

20. Equation for Impulse
I = F * t
a
a = F/m
Uk

21. Equation for acceleration
a
Newton (N)
if an object is at rest or moving with a constant velocity then the forces on it must be...
a = F/m

22. Equation for Potential 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
PE = mgh
Eccentric Force
P = F * v

23. Product of force X time over which the force acts
KE = 1/2 mv^2
Impulse
g
Static Friction

24. Symbol for Watts
Fk = Uk * R
Eccentric Force
W
Kinetic Friction

25. The frictional force between two surfaces when there is no movement between the surfaces
Net Force
Fs
Static Friction
PE = mgh

26. The energy a body possesses due to its movement
W
Eccentric Force
Kinetic Energy
Mechanical energy

27. The study of what causes motion (describes the forces that cause motion)
Kinetics
if an object is at rest or moving with a constant velocity then the forces on it must be...
h
Fk

28. Equation for kinetic friction
Fk = Uk * R
Newton (N)
Fs = Us * R
Forms of mechanical energy

29. Static - Kinetic - and Rolling
T
I
Types of friction
Free Body Diagram

30. 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
Fs = Us * R
Work
Kinetic Friction

31. Symbol of Impulse
Us
I
F
T

32. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Force
Center of Gravity
Us
Free Body Diagram

33. Equation of Power equals Strength times Speed
P = F * v
Joule (J)
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
Impulse

34. A force acting away from the CoG of a body induces translation AND rotation
Kinetics
Eccentric Force
P = F * (s/t)
Mechanical energy

35. Physical quantity that is completely described by its magnitude (mass - volume - length)
I = F * t
P
Scalar
concentric force

36. Symbol for torque
T
Impulse
PE = mgh
Linear momentum

37. The frictional force between two surfaces when there is movement between the surfaces
P = F * (s/t)
W
P
Kinetic Friction

38. Newton's 1st Law of motion (law of inertia)
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
KE = 1/2 mv^2
Us
Potential Energy

39. Equation for work
W = F * s
Types of friction
P = F * (s/t)
F

40. The capacity to do mechanical work
Linear momentum
P = (F*s)/t
Mechanical energy
a

41. Tendency of a body to resist a change in its state of motion
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
Inertia
PE = mgh
T

42. Static friction
Inertia
SE = 1/2kx^2
Fs
Fs = Us * R

43. Coefficient of static friction
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
i
Inertia
Us

44. Coefficient of kinetic friction
Uk
T
Force
Types of friction

45. Equation for Strain enegy
Mechanical energy
I
Types of friction
SE = 1/2kx^2

46. The rate of the mechanical work done by a force
i = F*t
KE = 1/2 mv^2
g
Power

47. Quantity of matter contained in an object
s
T
Mass
Kinetics

48. Kinetic energy (KE) and Potential Energy (PE)
Vector
P = (F*s)/t
Forms of mechanical energy
Joule (J)

49. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Newton (N)
W = F * s
Kinematics
PE = mgh

50. A force acting through the CoG of a body induces translation
concentric force
p = mv
Fk = Uk * R
P = F * (s/t)