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