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