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Mechanical Analysis
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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. Symbol of mass
symbol for momentum
Center of Gravity
m
Mechanical energy
2. Tendency of a body to resist a change in its state of motion
Fs
Forms of mechanical energy
N*s
Inertia
3. Equation for Strain enegy
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
SE = 1/2kx^2
Types of friction
Vector
4. Equation for work
KE = 1/2 mv^2
Inertia
W = F * s
Free Body Diagram
5. Symbol of inertia
I = F * t
Force
i
Forms of mechanical energy
6. A force acting through the CoG of a body induces translation
Vector
if an object is at rest or moving with a constant velocity then the forces on it must be...
Linear momentum
concentric force
7. A force acting away from the CoG of a body induces translation AND rotation
W = F * s
Eccentric Force
I = F * t
PE = mgh
8. Product of force X time over which the force acts
F
Kinetic Energy
a = F/m
Impulse
9. Equation for Kinetic Energy
Uk
g
Eccentric Force
KE = 1/2 mv^2
10. Equation of Power equals Strength times Speed
a = F/m
I = F * t
P = F * v
P = F * (s/t)
11. Newton's 3rd Law of Motion (law of reaction)
Mass
a = F/m
Strain 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
12. Product of mass and linear velocity
Strain Energy
Kinetic Friction
Linear momentum
a = F/m
13. Symbol for torque
W
Fs = Us * R
T
Torque
14. Rearrangement of equation for Power
I
s
i = F*t
P = F * (s/t)
15. The energy due to the position that a body occupies relative to the earths surface
Potential Energy
Kinetic Friction
Scalar
k
16. Newton's 1st Law of motion (law 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
m
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Frictional Force
17. Quantity of matter contained in an object
m
i
Mass
Normal reaction force
18. Coefficient of static friction
P = (F*s)/t
m
Us
if an object is at rest or moving with a constant velocity then the forces on it must be...
19. Static - Kinetic - and Rolling
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
I = F * t
Work
Types of friction
20. zero OR balanced
k
if an object is at rest or moving with a constant velocity then the forces on it must be...
Types of friction
Frictional Force
21. SI unit of Force
Potential Energy
h
Newton (N)
KE = 1/2 mv^2
22. Symbol for Watts
P = F * (s/t)
W
F
if an object is at rest or moving with a constant velocity then the forces on it must be...
23. An interaction between two objects/bodies that change or tend to change their motion (Vector)
P = F * v
Force
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
Kinetic Friction
24. Kinetic friction
Kinematics
p = mv
i = F*t
Fk
25. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
Fk = Uk * R
Frictional Force
p = mv
P = F * v
26. The frictional force between two surfaces when there is no movement between the surfaces
F
Static Friction
Free Body Diagram
Torque
27. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Scalar
P = F * v
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Vector
28. SI unit for mechanical energy
Normal reaction force
I
Joule (J)
Potential Energy
29. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
Kinematics
Frictional Force
h
p = mv
30. Force acting perpendicular to two surfaces in contact
i
Normal reaction force
Uk
concentric force
31. Symbol for power - measured in Watts (W)
F
P
N*s
a
32. Symbol for height above ground
h
a
Static Friction
Potential Energy
33. The energy a body possesses due to its movement
F=ma
h
Fk
Kinetic Energy
34. Potential energy due to an objects form
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
Strain Energy
Forms of mechanical energy
35. SI unit for impulse
N*s
Forms of mechanical energy
a = F/m
Uk
36. 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
Types of friction
Center of Gravity
Work
Fk
37. Equation for acceleration
Normal reaction force
a = F/m
Force
k
38. Equation of Force
Torque
a = F/m
k
F=ma
39. The rate of the mechanical work done by a force
Power
Center of Gravity
a
if an object is at rest or moving with a constant velocity then the forces on it must be...
40. Resultant force derived from the composition of two or more forces
SE = 1/2kx^2
symbol for momentum
a
Net Force
41. Coefficient of kinetic friction
P = (F*s)/t
Uk
symbol for momentum
a
42. Symbol of Impulse
Free Body Diagram
I
Frictional Force
if an object is at rest or moving with a constant velocity then the forces on it must be...
43. P
P = F * (s/t)
Vector
symbol for momentum
Static Friction
44. Equation for momentum
p = mv
i
PE = mgh
N*s
45. Equation for Power
g
P = (F*s)/t
Joule (J)
Fs
46. Rotary effect of a force
k
Fs
Inertia
Torque
47. The study of what causes motion (describes the forces that cause motion)
Force
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
Kinetics
KE = 1/2 mv^2
48. Equation for Impulse
SE = 1/2kx^2
symbol for momentum
Potential Energy
I = F * t
49. The frictional force between two surfaces when there is movement between the surfaces
if an object is at rest or moving with a constant velocity then the forces on it must be...
N*s
Static Friction
Kinetic Friction
50. Newton's 2nd Law of Motion (law of acceleration)
Inertia
p = mv
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
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