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Mechanical Analysis
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
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. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
Static Friction
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
I
2. Rotary effect of a force
Torque
Vector
p = mv
F
3. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Kinetics
KE = 1/2 mv^2
W = F * s
Kinematics
4. Equation for kinetic friction
Mechanical energy
Fk = Uk * R
Types of friction
I = F * t
5. Equation for Strain enegy
Inertia
Scalar
SE = 1/2kx^2
F=ma
6. Equation of Force
Fk = Uk * R
I = F * t
F=ma
i
7. Symbol for acceleration
a
Forms of mechanical energy
h
Vector
8. SI unit for mechanical energy
Joule (J)
a = F/m
i
Kinematics
9. Product of force X time over which the force acts
Torque
concentric force
Free Body Diagram
Impulse
10. Symbol of inertia
i
concentric force
a = F/m
Kinetic Friction
11. The energy due to the position that a body occupies relative to the earths surface
Forms of mechanical energy
Potential Energy
P = F * (s/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
12. Newton's 1st Law of motion (law of inertia)
k
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Power
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
13. Point around which a body's weight is equally balanced - no matter how the body is positioned.
Joule (J)
PE = mgh
if an object is at rest or moving with a constant velocity then the forces on it must be...
Center of Gravity
14. Coefficient of static friction
Scalar
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Us
Uk
15. Symbol of Force
KE = 1/2 mv^2
a = F/m
F
Fs = Us * R
16. Potential energy due to an objects form
Power
Strain Energy
F=ma
W = F * s
17. 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
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Forms of mechanical energy
Net Force
18. SI unit of Force
i
F
Newton (N)
P = (F*s)/t
19. Equation for momentum
Fk = Uk * R
p = mv
a = F/m
Uk
20. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Vector
Torque
W = F * s
a = F/m
21. Product of mass and linear velocity
Linear momentum
a
F=ma
Potential Energy
22. The capacity to do mechanical work
I = F * t
Static Friction
W = F * s
Mechanical energy
23. A force acting through the CoG of a body induces translation
Joule (J)
concentric force
i
h
24. Equation for Kinetic Energy
Free Body Diagram
s
Kinetics
KE = 1/2 mv^2
25. Symbol for height above ground
a = F/m
Fs = Us * R
h
i
26. P
I = F * t
symbol for momentum
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
m
27. Static friction
p = mv
I = F * t
Fs
a
28. Force acting perpendicular to two surfaces in contact
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Normal reaction force
N*s
Fk = Uk * R
29. The rate of the mechanical work done by a force
concentric force
Power
F=ma
Torque
30. Symbol of mass
m
Fk = Uk * R
s
Kinetics
31. SI unit for impulse
Work
Power
N*s
Joule (J)
32. A force acting away from the CoG of a body induces translation AND rotation
h
k
Eccentric Force
Impulse
33. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Force
Inertia
Free Body Diagram
Kinematics
34. Kinetic friction
Kinematics
Fk
Us
T
35. The study of what causes motion (describes the forces that cause motion)
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
g
SE = 1/2kx^2
36. Symbol for torque
P = F * v
T
Power
s
37. Symbol for displacement
Joule (J)
i
KE = 1/2 mv^2
s
38. The energy a body possesses due to its movement
Forms of mechanical energy
Scalar
Center of Gravity
Kinetic Energy
39. Symbol for power - measured in Watts (W)
P
Us
I = F * t
a
40. Symbol for gravity
I
g
Torque
Net Force
41. Quantity of matter contained in an object
Power
Free Body Diagram
Static Friction
Mass
42. Equation of impulse
Kinetic Energy
F=ma
i = F*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
43. The frictional force between two surfaces when there is movement between the surfaces
I
Impulse
Joule (J)
Kinetic Friction
44. The frictional force between two surfaces when there is no movement between the surfaces
Kinetic Energy
I = F * t
Static Friction
W = F * s
45. 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
Kinematics
Work
Mechanical energy
Center of Gravity
46. 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
g
SE = 1/2kx^2
KE = 1/2 mv^2
47. Symbol of Impulse
g
I
P = F * (s/t)
a
48. Physical quantity that is completely described by its magnitude (mass - volume - length)
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Static Friction
Scalar
Impulse
49. Coefficient of kinetic friction
i = F*t
Power
Uk
P = (F*s)/t
50. The spring constant
PE = mgh
k
Power
Kinetics
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