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BIO 30.01 > M2: Mechanical Aspects of Biosystem > Flashcards

M2: Mechanical Aspects of Biosystem Flashcards

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1
Q

It is determine base on a reference point (Earth)

A

Motion

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2
Q

Moving on a single axis

A

Translational

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3
Q

Motion along it’s own axis, and stays in one place

A

Rotatonal

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4
Q

Motion in an equilibrium position

A

Vibrational

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5
Q

Cause of Vibrational Motion

A
  1. Repetitive Force
  2. Restoring Force
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6
Q

Force present on elastic material

A

Elastic Force

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7
Q

Force used in vibrational force

A

Gravity Force

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8
Q

Motion along a straight line without intervening force

A

Linear Kinematics

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9
Q

Is the location of the particle with respect to it’s chosen reference point

A

Position

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10
Q

This defines position

A

Frame of Reference

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11
Q

Change in particle position

A

Displacement

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12
Q

Relationship of distance and displacment

A
  • Distance is always positive and greater than 0
  • Displacement is positive or negative, and less than or equal to 0
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13
Q

Rate at which displacement occurs

A

Average velocity

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14
Q

What is the average velocity in the position vs time graph?

A

Slope

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15
Q

Rate at which velocity changes over a period of time

A

Acceleration

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16
Q

What is the requirements for acceleration?

A
  1. Change in speed
  2. Change in direction
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17
Q

What is the graph of a position vs time in constant acceleration?

A

Curve

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18
Q

What is the graph of velocity vs time in constant acceleration?

A

Slant/Diagonal

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19
Q

What is the graph of acceleration vs time in constant acceleration?

A

Horizontal

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20
Q

What is the area under acceleration vs time graph?

A

Change in velocity

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21
Q

What is the area under velocity-time graph?

A

Change in position or displacement

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22
Q

What is the requirements for non-constant acceleration?

A
  1. Speed up
  2. Slow down
  3. Change in direction
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23
Q

Is it possible to have constant speed and acceleration simultaneously?

A

No

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24
Q

Is it possible to increase velocity without increasing acceleration?

A

Yes

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25
The integral of acceleration with respect to time, in non-constant acceleration
Velocity (by integration)
26
The integral of velocity with respect to time in non-constant acceleration
Displacement or Position (by integration)
27
Object moving and governed by 2 axis
Projectile Motion
28
Any body given an initial acceleration and follows a path determined by gravitational force and acceleration
Projectile
29
Path followed by projectile
Trajectory
30
Air resistance and Earth curvature and rotation is neglected
Ideal Model
31
Why do we neglect curvature and rotation of Earth?
Effects are minimal that they can be negligible
32
Trajectory can be divided into 2 equal parts
Symmetrical trajetory
33
What is the only acceleration experienced by the projectile?
Gravity
34
Is vy=0 and ay=-g, at the peak?
Yes
35
Is ay=-g in all points?
Yes
36
Are both ax and ay have values greater than 0 at initial and final ?
No
37
The relationship of motion to the forces that causes it
Dynamics
38
Did Newton derive his laws of motions?
No
39
An interaction between two objects or between an object and it's environment
Force
40
Objects pushes on a surface, and the surface exacting force in parallel
Normal Force
41
Force against movement of the object
Friction Force
42
A pulling force exerted by a rope, cord, or stretchable material
Tension Force
43
The pull of gravity on an object is a long-range force
Weight
44
Representation of applied force
Vector
45
Vector sum of all forces
Net Force
46
When a body is either at rest or moving with constant velocity
Newton's First Law or Inertia Law
47
Is it possible to have multiple frame of references?
Yes
48
Frame of reference where Newton's first law is valid
Inertial frame of reference
49
Non-newtonian forces that has non-constant acceleration and non-inertial field of reference
Pseudo/Ficticious Forces
50
The acceleration of an object is directly proportional to the net forces of the object
Newton's Second Law of Motion
51
if net force is fixed, what is relationship of acceleration and mass?
Inversely proportional
52
Gravitational force that Earth exerts on an object
Weight
53
Indirectly proportional to the gravitational value
Altitude
54
Fixed amount of matter on an object
Mass
55
For every action, there is equal and opposite reaction
Newton's Third Law
56
Why is projectile motion governed by 2 axes?
There is a need of interaction of 2 axis
57
What is the graph of position vs time in non-constant acceleration?
Slant or Diagonal
58
What is the graph for velocity vs. time in non-constant acceleration?
Parabola
59
What is the graph of acceleration vs time graph in non-constant acceleration?
Curve
60
Why ax=0 and ay=-g?
Ideal Motion
61
What can projectile motion identify?
Point of Origin
62
Can you apply a force without interacting to another object?
No
63
Conditions to exhibit normal force
Direct contact and Perpendicularity
64
Why can we easily move in smooth surface?
There is no resisting or opposing force
65
If object is resting, is there friction?
Yes, static friction
66
Elaborates the forces acting on the object
Free Body Diagram
67
Why is the point of reference is in the center?
It's the point where the weight is distributed or in equilibrium

BIO 30.01 (2 decks)

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