Unit D - Section 1 Flashcards

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1
Q

Proton

A

Positive charge

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2
Q

Electron

A

Negative charge

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3
Q

Neutral atom

A

Objects that have equal amounts of positive and negative charge

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4
Q

Charge separation

A

Charged objects cause charge separation when they are brought close to neutral objects

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5
Q

Electrical discharge

A

When you feel a shock or see a spark as you reach to touch the doorknob; this spark is referred to as electrical discharge

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6
Q

Atoms

A

Made of small particles; particles in an atom are electrically charged

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7
Q

Static

A

Not moving or stationary

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8
Q

Current electricity

A

Electricity that flows continuously

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9
Q

Conductor

A

Materials that allow the electrons to flow or conduct electricity

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10
Q

Load

A

A device that converts electrical energy to another form of energy

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11
Q

Electrical current

A

The steady flow of charged particles

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12
Q

Circuit

A

A path that controls the flow of electricity

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13
Q

Amperes

A

The rate at which electric current flows; measured in (A) or Amp

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14
Q

Current

A

Steady flow of electrons, useful for powering devices

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15
Q

Voltage

A

A measure of how much electrical energy each electron carries

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16
Q

Volt

A

Unit of measurement for voltage

17
Q

Voltmeter

A

A device that measures voltage

18
Q

Short circuit

A

Any bypass in a normal circuit or unintended pathway of breakage in a circuit

19
Q

Insulator

A

Materials that do not conduct electrical charge or electricity

20
Q

Fuse

A

Thin wire that melts when there is over voltage

21
Q

Circuit breaker

A

Shuts off automatically when there is over voltage

22
Q

Electrochemical cell

A

Cells that contain chemicals to produce a steady current

23
Q

Primary cell

A

Dry or wet cell that is not rechargeable

24
Q

Secondary cell

A

Cells that can be recharged by reversing the flow of current by using an external source

25
Q

Battery

A

Contains two of more cells

26
Q

Cell

A

Single battery (one cell)

27
Q

Dry cells

A

Chemicals that are in a paste

28
Q

Electrolyte

A

A liquid or paste that is inside a battery

29
Q

Ion

A

An atom or group of atoms that has become electrically charged through the loss or gain of atoms

30
Q

Electrodes

A

The electrolyte reacts with the 2 metals called electrodes

31
Q

Wet cells

A

Wet cells have a liquid and not a paste and they are not rechargeable

32
Q

Rechargeable cells

A

Can be reversed by using an external electrical source to run electricity back through the cell

33
Q

Battery

A

Connecting many cells to create a battery

34
Q

Electrolysis

A

Electrical breakdown

35
Q

Electrochemistry

A

The study of chemical reactions involving electricity

36
Q

Electroplating

A

Less expensive products can be made by coating a cheaper metal with a thin layer of silver or gold

37
Q

Static electricity

A

the result of an imbalance between negative and positive charges in an object.

38
Q

Rules

A

Opposite charges attract
Like charges repel