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