S&T Strand 3 Unit 1-2 Flashcards

Question	Answer
Electricity travels to our homes through	- step up transformers - pylons - step down sub-stations - electricity boxes - wall sockets
Source	where a thing comes from/starts
Device	something that changes the electricity into output energy
Systems will not work without these three stages	- source - device - output
Electrical circuits need these components	- a source of energy - conducting material - device
Source for electricity can be...	mains electricity or cell [or many cells such as battery]
Kettle	heat
Light bulb	light
Buzzer	sound
Motor	movement
When you connect all components it equals...	system
If pathway is closed, it is...	unbroken/complete [electricity flows] call this pathway a circuit
If pathway is open, it is...	broken [electricity doesn't flow]
Circuit diagrams: Cell	two lines, 1 short and 1 long
Circuit diagrams: Bulb	X in circle
Circuit diagrams: Closed switch	line with 2 dots
Circuit diagrams: in line fuse	line with box, in box is amp value
Circuit diagrams: ammeter	A in circle
Circuit diagrams: Voltmeter	V in circle
Circuit diagrams: Electrical Motor	M in a circle
Circuit diagrams: Direct current	= in circle
Circuit diagrams: Alternating current	~ in circle

Resource summary

	Created by Luca Truen about 9 years ago