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Science > Semester Test > Flashcards

Semester Test Flashcards

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Biology 101 flashcards
1
Q

Doppler Effect

A

The apparent change in frequency of a wave as the source moves in relation to the observer

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2
Q

Resonance

A

When an object is struck by a wave that matches it’s natural frequency the object will vibrate

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3
Q

Electromagnetic spectrum

A

Radio waves, micro waves, inferred, visible light, ultra violet, x-rays, gamma rays

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4
Q

Current

A

Continuous flow of electrons, measured in ampers

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5
Q

Voltage

A

The difference in electrical potential in a circuit measured in volts

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6
Q

Resistance

A

Opposition to the flow of a current

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7
Q

Ohms law

A

V=I•R

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8
Q

What are the different types of circuits?

A

Series and parallel

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9
Q

What is a series circuit

A

Only 1 continuous path for the electricity to travel

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10
Q

What is parallel circuit

A

Multiple paths

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11
Q

What are the facts against resistance

A

Diameter D^ R
Length is down resistance is up
Temp. Is down resistance is down
Type of wire

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12
Q

Dalton?

A

First modern atomic theory

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13
Q

Thomson

A

Discovered the electron

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14
Q

Rutherford

A

“Gold fail experiment”

Discovered the nucleus of a atom

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15
Q

Chadwick

A

Discovered the neutron

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16
Q

Proton

A

The mass of 1 a.m.u
Represented as p+
# of protons = the atomic #
Determined identity of an element

17
Q

Neutron

A

Mass slightly a greater than 1 a.m.u
Represented as n
# p+ = atomic mass
# n determines some properties of an element BUT not the identity

18
Q

Electron

A 
Mass of 1/1806 a.m.u 
Represented by e- in an Nuteral atom
#p+= # e- in an ion 
#e =#p in charge 
Determined how elements interact w/ other elements
19
Q

Ions

A

Atoms w/ a charge

20
Q

Valence electrons

A

The outermost e- is an atoms that are involved in bonding

21
Q

Ionic bonds

A

Electrons are taking by the non metals from the metal

22
Q

Covalent

A

2 or more non metals

23
Q

Isotopes

A

Atoms of the same element w/ different atomic masses + different propentney

24
Q

Diatomic elements

A

BrINICIHOF

Science (6 decks)

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