Circuits And Energy

Question 1

Fossil fuels are known as

Answer 1

Finite

And non-renewable resources

Question 2

Examples of fossil fuels

Answer 2

Oil
Gas
Coal

Question 3

Non renewable meaning

Answer 3

They will eventually run out

-short in supply

Question 4

Step 1 of creating electricity

Answer 4

• fossil fuels are burnt
• to heat water
• make steam

Question 5

Step 2 of creating electricity

Answer 5

The steam passes through a large turbine

-this rotates the turbine

Question 6

Step 3 of creating electricity

Answer 6

• the turbine turns a generator

- this produces an electrical current

Question 7

Step 4 of creating electricity

Answer 7

A transformer increases the electrical voltage produced

Question 8

Step 5 of creating electricity

Answer 8

• the electricity then goes into the national grid

- this distributes electricity to every home

Question 9

LED stands for

Answer 9

Light -emitting diode

Question 10

LED features and use

Answer 10

• has a semi conductive part inside

- glows when electricity passes through

Question 11

Slide switch

Answer 11

-like Gate which allows electricity to pass through to complete the circuit
Or
-close the circuit off

Question 12

Power cable do what

Answer 12

Plug into the mains

-provide electricity to circuit to power it

Question 13

Positive protons flow around…

Answer 13

The red wire

Question 14

Negative electrons flow around..

Answer 14

The black wire

Question 15

Soldering

Answer 15

+when electrically conductive metal called solder melts
+it melts at the point where electrical wires and the parts of the court touch
+so electricity can flow around it

Question 16

Circuit

Answer 16

• arrangements of electronic parts
• linked together with electrically conductive wires
• this allows electricity to flow to the inputs/outputs