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Science > Vocab Terms I > Flashcards

Vocab Terms I Flashcards

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Biology 101 flashcards
1
Q

Opposite poles of a magnet do this

A

Attract

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2
Q

The range of wavelengths or frequencies over which electromagnetic radiation extends ( includes gamma, x-ray, UV, visible light, infrared, microwave, and radio wave?

A

Electromagnetic Spectrum

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3
Q

Analyzed preserved remains, traces of animals and plants, and microorganisms to reconstruct the history of life on Earth

A

Fossil record

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4
Q

Generated when a bar magnet is moved through a wire coil

A

Electric Current

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5
Q

Uses curved mirrors, largest optical telescopes in the world

A

Reflecting telescope

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6
Q

Empty space that only electromagnetic waves can travel through

A

vacuum

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7
Q

Part of the earth’s crust that is thick but not as dense as oceanic crust

A

Continental Crust

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8
Q

Formed when oceanic crust subducts under continental crust at subduction zones ( Convergence-Oceanic subduction )

A

Volcanic mountain ranges

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9
Q

Also known as artificial selection, is a process used by humans to develop new organisms with desirable characteristics

A

Selective breeding

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10
Q

Change in direction of waves that occurs when waves travel from one medium to another

A

refraction

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11
Q

Formed in the ocean when magma rises up, erupts, cools and solidifies and pushes the sea-floor outwards

A

mid-Ocean ridge

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12
Q

Long, narrow ditches in the Earth’s crust when 2 or more oceanic plates converge and one subducts under the other

A

deep sea trenches

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13
Q

a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity

A

seafloor spreading

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14
Q

Waves that don’t reqquire a medium

A

Electromagnetic waves

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15
Q

Bouncing back of waves

A

Reflection

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16
Q

Thinnest layer of the Earth

A

crust

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17
Q

68% of Earth’s mass, movement in this layer causes the movement of the continents (convection currents )

A

Mantle

18
Q

Uses mechanical energy to produce electricity

A

generator

19
Q

Type of mechanical wave where the energy runs at right angles ( perpendicular) to the wave

A

transverse wave

20
Q

During the first and third quarters of the Moon, Moon and Sun are at right angles to each other

A

Neap Tides

21
Q

Occurs whenever there is a full or new moon, Sun and Moon must either be in a straight line on the same side of Earth, or they must be on opposite sides of Earth, gravity causes very high and very low tides

A

Spring Tides

22
Q

Largely metallic and mainly iron, the outer core is liquid and responsible for generating the Earth’s magnetic field

A

Outer Core

23
Q

When one plate dives under another plate due to it being more dense

A

subduction

24
Q

Most dense layer of Earth, SOLID DUE TO IMMENSE PRESSURE

A

inner core

25
Q

Occurs when two plates collide together. Form mountains , island arcs, volcanos, and ocean trenches

A

convergent boundaries

26
Q

Occures when an object moves towards the observer

A

blue shift

27
Q

Plates that are moving apart. Form mid ocean rides and continental drift zones

A

Divergent boundaries

28
Q

For every action there is an equal but opposite reaction

A

Newton’s 3rd law

29
Q

Force that opposes motion

A

friction

30
Q

Structures that have “ lost” their original use

A

vestigial structures

31
Q

Simply a coil of wire wrapped around an iron core connected to an electric current producing a magnetic field

A

An electromagnet

32
Q

1) increase current 2) increase # of coils

A

Makes an electromagnet stronger

33
Q

Age of a fossil by comparing it to the fossils around it, generally which is older and which is younger-no exact number

A

relative age

34
Q

Similar structure, different function/ job

A

Homologous

35
Q

Different structure, similar function/job

A

Analogous

36
Q

Uses refracting lenses to see things within our solar system

A

Refracting telescope

37
Q

The resultant force when two or more forces are combined

A

Net Force

38
Q

one complete wave cycle; usually measure crest to crest or trough to trough

A

wavelength

39
Q

Any characteristic or trait that allows an organism to survive

A

adaption

40
Q

Lowest point of a wave

A

trough

41
Q

Highest part of a wave

A

crest

42
Q

Proposed the theory of Continental Drift which became the basis for today’s modern palte tectonic theory

A

Alfred Wegener

Science (3 decks)

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