Scienceeee Flashcards
Substances which do allow electricity through are…..
Conductors
Some examples of conductors are….
Copper Metal Aluminium Steel Silver Gold
Where are metals good conductors?
The electrons are only weakly attracted to the nuclei of atoms
Substances which don’t allow electricity are called?
Insulators
Some examples of insulators are?
Plastic Wood Rubber Air Porcelain
The electrons in insulators are…
Strongly attached to the nuclei of the atoms
A pathway for electricity is called…
Circuit
What does a switch do?
It lets you open and close a circuit
The movement of electrons in a circuit is called?
Electric current
The more current flowing through a circuit the …… the bulb glows
More
If the resistance in a circuit increases the current gets…..
Smaller
A conductor has a …. resistance
Low
Bulb
Circle with a cross
Switch
Lines with circles
The current is measured using a..
Anmeter
Measures the amount of electrons per second
what is a current measured in?
Amps
How fast the electrons moving through is called an ….
Amperes
In a Series circuit the current…..
Is the same at all points
in a parallel circuit the current is….
Split between each
The voltage is measured in…
Volts
What do u measure volts in…
Voltmeter
Series circuit
Voltage:
Current:
Spilts
Stays the same
Parallel circuit
Voltage:
Current:
Stays the same
Splits
What is an electric current?
The movement of electrons in a wire
Hat does it mean when one bulb goes out but others dont?
Each lightbulb has a different pathway to the battery
Parallel Circuit
If you add more bulbs to a parallel circuit the….
- Resistance decreases
- Current Increases
Conductors have…. resistance
Low
What is resistance?
- opposite to electric current
- measured in Omphs
- short circuit is with low resistance
What is voltage?
It motivates the flow and current.
If you add a bulb to a series circuit….
- resistance increases
- current decreases
How do you know if its a parallel circuit?
Multiple pathways
in a series circuit if one lamp unscrews what happens to the others?
Goes out
Anmeters are only used in series circuits?
True
Where are Parallel circuits used?
In homes, this is by cutting electricity off one thing but others still remaining with electricity
Series or parallel in iPads?
Parallel
What appliances require series circuits?
Lamps, freezers and refrigerators
IF YOU INCREASE ETHE VOLTAGE THE CURRENT
INCREASES
IF YOU INCREASE THE RESITANCE THE CURRENT
DECREASES
