Science Q3 Flashcards

1
Q

Computation of Swave

A

Swave = λ f

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2
Q

Computation of f

A

f = Swave/λ

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3
Q

Computation of λ

A

λ = Swave/f

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4
Q

Light coming from the sun, lighting, and organisms that emit their own light.

A

Natural light source

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5
Q

Light from light bulbs and Flames from a candle.

A

Artificial light source

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6
Q

A phenomenon when two waves meet in the same medium

A

Interface

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7
Q

the ability of light to bounce back

A

Reflection

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8
Q

– the bending of the light when it encounters obstacles or passes through a small opening

A

Diffraction

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9
Q

light passes through

A

Transparent

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10
Q

materials that only allow part of the light to pass through them.

A

Transluscent

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11
Q

material totally that blocks the light

A

Opaque

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12
Q

Characteristics of light

A

Speed
intensity
wavelength
frequency

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13
Q

average kinetic energy present in a system

A

Thermal Energy

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14
Q

energy that is transferred from one body to another as the result of difference in temperature.

A

Heat

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15
Q

Energy in motion

A

Kinetic energy

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16
Q

measure of hotness or coldness of an object

A

Temperature

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17
Q

An instrument that measures temperature

A

Thermometer

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18
Q

The process by which heat occurs through a medium from one point to another.

A

Conduction

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19
Q

That allow electricity and heat to flow through it

A

Conductor

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19
Q

that reduces or prevents transmission of heat or sound or electricity

A

Insulator

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20
Q

is the transfer of heat through the actual physical movement of fluid

A

Convection

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21
Q

the transfer of thermal energy by electromagnetic waves.

A

Radiation

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22
Q

The basic building block of matter

A

Atom

23
Q

like charges repel each other and unlike changes attract with each other.

A

Laws of Charges

24
Q

if an object is being charged, then the electron is neither created nor destroyed.

A

Law of Conservation

25
Q

involves the transfer of electrons by rubbing objects against each other.

A

Friction

26
Q

involves friction at first to charge an object.

A

Conduction

27
Q

and instrument used to detect the present and kind of charge in an object.

A

Electroscope

28
Q

charging an object without any direct contact

A

Induction

29
Q

corresponds to 0°, the point of reference where all other horizontal lines are measured from.

A

Equator

30
Q

these lines that divide earth horizontally.

A

Latitudes

31
Q

vertical lines which divide earth into wedges.

A

Longitudes

32
Q

Why is Prime meridian is also called Greenwich Meridian

A

because it passes through Greenwich, England.

33
Q

A location that uses a chosen reference that will serve as the basis for its location

A

Relative Location

34
Q

A location that does not change no matter what happens to the surroundings

A

Absolute location

35
Q

Is the location based on the bodies of water surrounding it.

A

Insular Location

36
Q

are materials that can be replaced or replenished over a reasonable period, especially when managed properly.

A

Renewable resources

37
Q

are those that cannot be replaced or replenished over a reasonable amount of time.

A

Nonrenewable Sources

38
Q

are products that come from deep inside earth.

A

Fossil fuels and petroleum

39
Q

Is the process of evaporating a liquid and then cooling the steam at a certain temperature to condense it into its pure substance.

A

Distillation

40
Q

is a mix of water, aggregate (sand and gravel), and cement.

A

Concrete

41
Q

is made up of certain proportions of materials such as calcium, silicon, aluminum,
and iron.

A

cement

42
Q

– is a black, sticky petroleum product made of a polycyclic hydrocarbon that has to be heated to hold the aggregates together.

A

Bitumen

43
Q

are also by-products of petroleum.

A

Petrochemicals

44
Q

– is the measure of the amount of water needed to make a certain product.

A

Water footprint

45
Q

Is the densest part of the atmosphere.

A

Troposphere

46
Q

It contains the OZONE LAYER, which is the layer of the atmosphere that deflects the UV
radiation from the sun.

A

Stratosphere

47
Q

Is a really cool region where it is nearly -90 degrees Celsius at the very top of the layer.

A

Mesosphere

48
Q

In this layer, There is no ozone layer to protect you.

A

Thermosphere

49
Q

is a form of heat transfer by EM waves.

A

Radiation

50
Q

is a natural process that traps heat in Earth’s atmosphere, similar to how a greenhouse traps heat for plants to thrive.

A

Greenhouse effect

51
Q

is the steady, long-term increase in earth’s temperature due to trapped heat in the atmosphere.

A

Global warming and climate change

52
Q

Rising ocean temperatures stress corals, where corals lose their color and starve.

A

Coral Bleaching

53
Q

One of the major sources of greenhouse gases.

A

Burning of fossil fuels

54
Q

Changing the landscape so that it can be used by people, especially farming, increases the greenhouse gases in the atmosphere, particularly carbon dioxide.

A

Land use

55
Q

comes from heating up calcium carbonate, producing lime and carbon dioxide.

A

Making cement

56
Q

are particles suspended in the air, including CFCS and sulfates from burnt fossil fuels.

A

Aerosol