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Review Classes - Science > Gen Sci > Flashcards

Gen Sci Flashcards

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Biology 101 flashcards
1
Q

What is the Scientific Method?

A

tool used by scientists to find solutions

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2
Q

What are the steps of scientific method

A 
Ask Question
Do Background Research
Create hypothesis
Test with an experiment
Analayze results and Draw conclusion
Report Results
(if false, Try again)
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3
Q

Hypothesis

A

tentative answer to a problem that can be tested by experiments and further studies
Assumption based on observation

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4
Q

Theory

A

Tentative explanation to a certain phenomenon based from years of investigation
has basis

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5
Q

Scientific Law

A

generalization proven by studies and supported by the scientific community

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6
Q

Length

A

Meter (m)

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7
Q

Mass

A

Kilogram (kg)

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8
Q

Time

A

Seconds (s)

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9
Q

Temperature

A

Kelvin (K)

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10
Q

Electrical Current

A

Ampere (A)

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11
Q

Amount of substance

A

Moles (mol)

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12
Q

Luminous Intensity

A

Candela (cd)

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13
Q

Significant Figures

A

all certain/sure digits plus one that is uncertain/unsure

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14
Q

Addition and Subtraction

A

round off to the least precise measurement

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15
Q

Multiplication and Division

A

round of to the least number of significant figures

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16
Q

Mantissa

A

a number that can be equal or greater than 1 but less than 10

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17
Q

Lever

A

easier to do work on a particular load

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18
Q

Parts of a Lever

A

Load - object
Effort - amount of force applied
Fulcrum - pivot point

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19
Q

Wheel and Axle

A

modified lever using two wheels attached in the middle (one is bigger than the other)

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20
Q

Pulley

A

lifts heavy objects`

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21
Q

Inclined Plane

A

ramp to lift objects to a higher position

22
Q

Wedge

A

two parts: Base and Height

23
Q

Screw

A

two parts: pitch and the radius

24
Q

Energy

A

Capacity to do work

Joule (J)

25
Q

Mechanical Energy

A

sum of Potential Energy and Kinetic Energy

26
Q

Potential Energy

A

Stored Energy
energy associated with an object due to its shape, position, configuration
Chemical, Gravitational, Elastic, Magnetic

27
Q

Kinetic Energy

A

energy of an object due to motion

28
Q

Electrical Energy

A

due to the motion of charged particles (electrons) through conducting wires

29
Q

Radiant/Light energy

A

transported by Electromagnetic waves

Radio waves, Microwaves, Infrared Radiation, Visible Light, Ultra Violet, x-ray, Gamma Ray

30
Q

Sound Energy

A

when a force causes an object or substance to vibrate

Energy is transferred through the substance in a wave

31
Q

Thermal Energy/ Heat

A

sum of kinetic energies of the molecules due to linear motion

32
Q

Convection

A

Lands and Sea Breeze

heat is transferred by currents in a fluid

33
Q

Conduction

A

Direct transfer of heat

34
Q

Radiation

A

heat is transferred by electromagnetic waves

35
Q

Matter

A

anything that occupied space and has mass

36
Q

Solid

A

definite volume and shape, high cohesion and density, incompressible, greater PE than KE

37
Q

Liquid

A

definite volume, indefinite shape, low cohesion, average density, incompressible, equal PE and KE

38
Q

Gas

A

indefinite volume and shape, almost non-existent cohesion, low density, compressible, greater KE than PE

39
Q

Plasma

A

Bose-Einstein Condensate

40
Q

Terrestrial Radiation

A

radiant energy emitted by the Earth which makes life possible

41
Q

Solid to liquid

A

Fusion

42
Q

Liquid to Solid

A

Solidification

43
Q

Liquid to Gas

A

Vaporization

44
Q

Gas to Liquid

A

Condensation

45
Q

Solid to Gas

A

Sublimation

46
Q

Gas to Solid

A

Deposition

47
Q

Cohesion

A

between like particles

48
Q

Adhesion

A

between unlike particles

49
Q

Surface Tension

A

the exposed surface contracts to the smallest possible area because of unequal molecular cohesive forces

exists because liquid always try to minimize surface area

50
Q

Capillarity

A

Rising of liquid in a thin tube due to adhesion

Review Classes - Science (6 decks)

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