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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. 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
N*s
Vector
Center of Gravity
Work
2. Tendency of a body to resist a change in its state of motion
Inertia
Fk = Uk * R
Free Body Diagram
k
3. Physical quantity that possesses both magnitude and direction ( force - pressure - torque - weight)
s
Torque
Vector
Center of Gravity
4. The energy a body possesses due to its movement
PE = mgh
Kinetic Energy
Fk
Fs
5. The energy due to the position that a body occupies relative to the earths surface
g
Center of Gravity
Static Friction
Potential Energy
6. Symbol of mass
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Center of Gravity
Free Body Diagram
m
7. An interaction between two objects/bodies that change or tend to change their motion (Vector)
i
Force
Potential Energy
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
8. Kinetic energy (KE) and Potential Energy (PE)
Kinetic Energy
Forms of mechanical energy
Free Body Diagram
Static Friction
9. Product of force X time over which the force acts
a = F/m
Fk
P = F * (s/t)
Impulse
10. zero OR balanced
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
if an object is at rest or moving with a constant velocity then the forces on it must be...
Free Body Diagram
g
11. Newton's 2nd Law of Motion (law of acceleration)
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
Kinematics
Force
Fk = Uk * R
12. Coefficient of static friction
Fk = Uk * R
Frictional Force
Us
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
13. Newton's 1st Law of motion (law of inertia)
Eccentric Force
Fk = Uk * R
h
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
14. Newton's 3rd Law of Motion (law of reaction)
Free Body Diagram
P = (F*s)/t
Us
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
15. Resultant force derived from the composition of two or more forces
W
Net Force
Scalar
i = F*t
16. Equation of Power equals Strength times Speed
Scalar
Power
P = F * v
Kinetics
17. SI unit for impulse
if an object is at rest or moving with a constant velocity then the forces on it must be...
Net Force
N*s
Torque
18. Force acting perpendicular to two surfaces in contact
i = F*t
Force
Normal reaction force
SE = 1/2kx^2
19. Symbol for height above ground
a
h
Net Force
F
20. Equation of Force
Vector
F=ma
if an object is at rest or moving with a constant velocity then the forces on it must be...
Linear momentum
21. The study of HOW things move (describes the appearance of movement position - velocity - and acceleration)
W
Kinematics
a = F/m
SE = 1/2kx^2
22. A force acting away from the CoG of a body induces translation AND rotation
Types of friction
h
Center of Gravity
Eccentric Force
23. P
symbol for momentum
i = F*t
Inertia
Us
24. Quantity of matter contained in an object
F=ma
Scalar
Mass
Kinetic Friction
25. Product of mass and linear velocity
Linear momentum
Mechanical energy
Eccentric Force
i
26. The rate of the mechanical work done by a force
Power
a
F
p = mv
27. Sketch that shows a defined system in isolation with all of the force vectors acting on the system.
F=ma
Free Body Diagram
m
if an object is at rest or moving with a constant velocity then the forces on it must be...
28. Physical quantity that is completely described by its magnitude (mass - volume - length)
Scalar
Joule (J)
W = F * s
s
29. SI unit of Force
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Newton (N)
s
Static Friction
30. Symbol for Watts
W
I
Kinematics
KE = 1/2 mv^2
31. SI unit for mechanical energy
m
Net Force
Joule (J)
Forms of mechanical energy
32. Static friction
Mechanical energy
g
Fs
Work
33. Equation for Impulse
SE = 1/2kx^2
g
i = F*t
I = F * t
34. The force that arises whenever one body moves - or tends to move across the surface of (always opposes the motion or impending motion)
PE = mgh
Frictional Force
Power
i
35. Symbol for torque
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
Strain Energy
Fs = Us * R
T
36. Equation for Strain enegy
I = F * t
T
SE = 1/2kx^2
An object will remain at rest or continue with constant motion (velocity) unless acted on by an unbalanced force
37. Equation for Power
Kinetic Friction
Strain Energy
P = (F*s)/t
g
38. 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
Free Body Diagram
Uk
39. Symbol for acceleration
Free Body Diagram
a
Work
Uk
40. Equation for acceleration
a
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
KE = 1/2 mv^2
41. Symbol of inertia
i
Net Force
Force
m
42. Symbol of Force
Normal reaction force
F
a = F/m
Vector
43. Equation for static friction
P
Fs
Fs = Us * R
Power
44. Symbol for gravity
Eccentric Force
Forms of mechanical energy
g
Types of friction
45. Equation for kinetic friction
Fk = Uk * R
Kinetic Friction
Net Force
Kinetics
46. Potential energy due to an objects form
P = F * (s/t)
Strain Energy
Types of friction
Uk
47. Equation for Potential Energy
Eccentric Force
Free Body Diagram
PE = mgh
Fs
48. The frictional force between two surfaces when there is movement between the surfaces
Kinetic Friction
Mass
I = F * t
concentric force
49. Rotary effect of a force
Inertia
g
Torque
Potential Energy
50. Symbol for displacement
s
Normal reaction force
SE = 1/2kx^2
Static Friction