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Test your basic knowledge |
Mechanical Analysis
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
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. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
P = F * v
Free Body Diagram
concentric force
I = F * t
2. Rotary effect of a force
p = mv
Torque
Fk = Uk * R
SE = 1/2kx^2
3. Tendency of a body to resist a change in its state of motion
W = F * s
KE = 1/2 mv^2
Inertia
Linear momentum
4. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
Strain Energy
Vector
a = F/m
Fs
5. Equation for Potential Energy
Us
Normal reaction force
PE = mgh
Kinetic Energy
6. Equation for Strain enegy
Vector
m
SE = 1/2kx^2
I
7. Newton's 2nd Law of Motion (law of acceleration)
Forms of mechanical energy
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
Linear momentum
8. Equation for Impulse
PE = mgh
W = F * s
I = F * t
T
9. The capacity to do mechanical work
Mechanical energy
Static Friction
Force
W
10. Equation for static friction
PE = mgh
Fs = Us * R
T
SE = 1/2kx^2
11. SI unit for impulse
p = mv
Newton (N)
P = (F*s)/t
N*s
12. Symbol for height above ground
Forms of mechanical energy
Uk
W = F * s
h
13. Coefficient of static friction
P = F * v
Us
s
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
14. Point around which a body's weight is equally balanced - no matter how the body is positioned.
m
i
k
Center of Gravity
15. Newton's 1st Law of motion (law of inertia)
Uk
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
i = F*t
Eccentric Force
16. The frictional force between two surfaces when there is movement between the surfaces
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Kinetic Friction
Fs = Us * R
k
17. SI unit for mechanical energy
P = F * (s/t)
Net Force
Joule (J)
I
18. Resultant force derived from the composition of two or more forces
N*s
Net Force
Eccentric Force
Mechanical energy
19. The frictional force between two surfaces when there is no movement between the surfaces
Static Friction
W
Net Force
Vector
20. Equation of Power equals Strength times Speed
SE = 1/2kx^2
Joule (J)
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
P = F * v
21. The study of what causes motion (describes the forces that cause motion)
P = F * v
PE = mgh
Kinetics
Fs
22. Symbol of inertia
m
i
Scalar
Normal reaction force
23. Equation for Kinetic Energy
KE = 1/2 mv^2
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
P = (F*s)/t
a
24. zero OR balanced
Frictional Force
if an object is at rest or moving with a constant velocity then the forces on it must be...
i
Free Body Diagram
25. Equation for acceleration
i = F*t
Mechanical energy
a = F/m
if an object is at rest or moving with a constant velocity then the forces on it must be...
26. The energy a body possesses due to its movement
Normal reaction force
Kinetic Energy
Mechanical energy
m
27. Equation for Power
P = (F*s)/t
W
P
Kinetic Energy
28. Symbol for gravity
Potential Energy
g
W = F * s
Us
29. Equation of impulse
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
F
i = F*t
h
30. Symbol for torque
concentric force
T
Newton (N)
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
31. Quantity of matter contained in an object
Kinetics
Mass
Fs
a = F/m
32. Potential energy due to an objects form
Strain Energy
symbol for momentum
Fk = Uk * R
KE = 1/2 mv^2
33. Equation for kinetic friction
Fk = Uk * R
I
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
P
34. Symbol for acceleration
PE = mgh
Scalar
a = F/m
a
35. An interaction between two objects/bodies that change or tend to change their motion (Vector)
Scalar
Force
Linear momentum
a
36. Physical quantity that is completely described by its magnitude (mass - volume - length)
I
P = F * (s/t)
Scalar
Torque
37. Static friction
P
Fs
Power
I
38. The energy due to the position that a body occupies relative to the earths surface
Potential Energy
Scalar
a
Vector
39. Symbol of mass
a
m
P = (F*s)/t
Net Force
40. Symbol for displacement
P = (F*s)/t
s
P
F
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
Center of Gravity
I = F * t
if an object is at rest or moving with a constant velocity then the forces on it must be...
Work
42. Product of mass and linear velocity
SE = 1/2kx^2
Linear momentum
W = F * s
W
43. Newton's 3rd Law of Motion (law of reaction)
Vector
s
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
Work
44. Kinetic friction
Strain Energy
Fk
Frictional Force
Impulse
45. Symbol of Impulse
Power
I
k
a
46. The rate of the mechanical work done by a force
Power
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
47. Rearrangement of equation for Power
Fs = Us * R
Static Friction
PE = mgh
P = F * (s/t)
48. Symbol of Force
p = mv
I = F * t
F
Kinetic Friction
49. Equation for momentum
P
p = mv
Torque
I
50. The spring constant
k
Vector
I
Frictional Force