A1 LT7

Question 1

What are some examples of sources?

Answer 1

Batteries, generators, solar cells, thermocouples

Question 2

What happens to the lamp when the switch is open?

Answer 2

Lamp is off

Question 3

What is direct current (DC)?

Answer 3

Current that flows in the same direction all of the time.

Question 4

What is the load in a circuit?

Answer 4

Device that changes electrical energy

Question 5

What happens to the lamp when the switch is closed?

Answer 5

Lamp is on

Question 6

What is alternating current (AC)?

Answer 6

Changes direction continuously and at regular intervals.

Question 7

What are some examples of loads?

Answer 7

Lights, heaters, motors, radios, refrigerators

Question 8

What does it mean when a circuit is open?

Answer 8

current cannot flow

Question 9

What type of current is produced by alternators?

Answer 9

Alternating current

Question 10

What is the role of conductors in a circuit?

Answer 10

Complete the path for electron flow

Question 11

What is a closed circuit?

Answer 11

electrons can flow

Question 12

What are some examples of conductors?

Answer 12

Wires, busbars

Question 13

Define a short circuit.

Answer 13

parallel path of low resistance

Question 14

Why is polarity important in electric circuits?

Answer 14

Determining current flow direction

Question 15

What are some sources of direct current?

Answer 15

Batteries, thermocouples, photovoltaic cells, DC generators.

Question 16

What components must be connected for current to flow in a circuit?

Answer 16

Sources, loads, conductors

Question 17

Where do electrons pass through after the load in a circuit?

Answer 17

Return wires