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