Electric Current Flashcards Preview

Science 9: Chapter 7/8 > Electric Current > Flashcards

Flashcards in Electric Current Deck (12)
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1
Q

What are the two types of charge?

A

Static and moving

2
Q

Electric load

A

A device that transforms the electric energy into other forms of electricity
Examples: oven-heat, speakers-sound, fan-wind

3
Q

Electric curcut

A

A complete pathway for electrons that allow current to flow so electric energy works.

4
Q

How does a chemical cell work?

A

Chemical energy in a cell gives electrons on the negative terminal electric potential energy.

  • electrons are attached to positive terminal
  • when electrons reach the positive terminal the circuit is complete
5
Q

The 4 basic parts to a circuit

A

Source, conductor, load, switch

6
Q

Source

A

The source of electrical energy

Example: cell, battery

7
Q

Conductor

A

The wire through which current flows

8
Q

Load

A

A device that transforms the electric energy into other forms of electricity

9
Q

Switch

A

A device that can turn the circuit on or off by closing or opening the circuit

10
Q

Current electricity

A

A continuous flow of charge

-only works when there is a complete circuit for e- to flow

11
Q

How does current flow?

A

Electrons are bumped

12
Q

Current-measure of flow

A

Unit of flow for electric current is amperes (A)