Electricity Flashcards

1
Q

Name a natural magnet:

A

Lodestone, Magnetite

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2
Q

Two magnetic poles will repel each other if:

A

Both are south poles

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3
Q

Static electricity means:

A

Electricity at rest

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4
Q

A measurement of resistance is called an:

A

ohm

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5
Q

A flow of electrons constitutes:

A

Electric currentA

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6
Q

A flow of electrons in the same direction is called:

A

Direct current

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7
Q

A circuit that has a break or gap in it so no current can flow is a/an:

A

Open circuit

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8
Q

A unit of measurement of quantity of electricity is termed:

A

Coulomb (count>coulomb)

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9
Q

Alternating current:

A

Flows in interrupted pulses

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10
Q

A unit of electrical pressure is called:

A

volt

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11
Q

A milliampere is:

A

1/1000 of an ampere

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12
Q

Whenever an electrical current is diverted from its prescribed course so that a very great current flows, it is called:

A

Short circuit

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13
Q

The manner in which electricity is used for a therapeutic effect is:

A

A modality

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14
Q

A direct current generator produces electricity is:

A

Chemical means

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15
Q

A transformer does what?

A

Steps voltage up or down

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16
Q

Alternating current can be converted to direct current by a:

A

Rectifier

17
Q

Galvanic current is what kind of current?

A

Direct

18
Q

Electrons always flow from:

A

Negative to positive

19
Q

The smallest unit of matter in which a substance can be divided, without losing its basic properties is:

A

A molecule

20
Q

Rubber, plastic, glass, and dry wood are examples of what kind of materials:

A

Insulators

21
Q

Cataphoresis is the use of a positive pole, to produce what in the skin?

A

Acid

22
Q

When electrical current is an actual operation, it is known as:

A

A complete circuit

23
Q

A conductor of electricity does what?

A

Carries current, transmits current, conveys current

24
Q

In order to make a current flow, you must have what?

A

Voltage

25
Q

A step-up transformer is a device used on Alternating current to:

A

Increase voltage, and decrease amperage