Unit 5-Electricity

Question 1

Charge Q

Answer 1

A property where matter experiences a force when close to other electrically charged matter

Question 2

Current I

Answer 2

The rate of flow of charges passed a given point and amperes A

Question 3

Voltage V

Answer 3

The electric potential energy per unit charge in J/C or V

Question 4

Source

Answer 4

Power supply

Question 5

Conductors

Answer 5

Joins the parts of the circuit

Question 6

Load

Answer 6

Transformers electric energy into a useable form of energy

Question 7

Series circuit

Answer 7

Loads or cells in a row only one path for current flow. Voltage splitter

Question 8

Parallel circuit

Answer 8

There are two or more paths for charges to follow. Current splitter

Question 9

Current convention

Answer 9

Electrons flow from positive to negative

Question 10

Electron flow convention

Answer 10

Electrons flow from negative to positive

Question 11

Short circuit

Answer 11

Circuit with no load

Question 12

Direct current

Answer 12

Charges move one direction through a path

Question 13

Alternating current

Answer 13

Charges reversed directions positive and negative

Question 14

Resistance

Answer 14

Ability to stop or slow down electrons

Question 15

Resistors

Answer 15

Devices put into circuits to resist current flow

Question 16

Ohmic resistor

Answer 16

Obey ohms law

Question 17

Non-ohmic resistor

Answer 17

For some loads resistance changes with time

Question 18

Equivalent resistance

Answer 18

A single resistance that can replace all the resistors in a circuit well keeping the same current

Question 19

Kirchoff’s voltage rule

Answer 19

The total voltage in a loop in a circuit is equal to the sum of the voltages across the loads

Question 20

Kirchoff’s current rule

Answer 20

At any Junction the current going on equals the current going out