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Flashcards in First Element Of Physics Deck (13)
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1

What is an insulator?

Any material that does not allow the flow of energy or charged electrons through it.

Examples-rubber, dry wood, plastic.

2

What is a potentiometer?

Volume control on radio, dimmer switches
Changing the flow of energy.

3

What is a transformer?

Increases or decreases voltage.

4

What are electric filters?

Remove unwanted frequencies and increase wanted frequencies.

5

What is a fuse?

Device that 'blows' when excess current flows through a circuit.
Also known as a circuit breaker or safety device.

6

What is a rectifier?

Converts AC to DC

7

What is an oscillator?

Produces a repetitive signal.

8

What is an anode?

Positively charged electrode.
Current flows into anode.

9

What is a cathode?

Negatively charged electrode.
Current flows out of electrode.

10

What is an anion?

Carries negative electrical charge.

11

What is a cation?

Carries positive electrical charge.

12

What is a conductor?

Any material which allows the flow of energy or charged electrons through it.

Examples-water, copper, gold.

13

OZONE
Made by:

High frequency - induction coil
Induction creates a spark, spark changes the attraction of ions