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