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