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