Circuits Flashcards
Name 3 types of charge.
Main 2 are Protons which is positive. Electrons which is negative. And leftover is Neutrons which is Neutral (0).
What happens when a positive and negative charge meet?
They Attract
What happens when a negative meet a negative. And positive meet positive.
They repel.
All materials are made of atoms but what 3 particles make atoms?
Protons, electrons, and Neutrons.
Why can you only lose and gain electrons?
Because they are outside while protons cant change because they are stuck inside.
What happens when you gain electrons?
The atom becomes negative because electrons are negative and you gained negatives.
What happens when you lose electrons?
The atom becomes positive because you lose negatives.
What is current?
The flow of charge around a circuit per second.
Units and measurement of current.
The unit is amps or amperes it is measured by an ammeter.
What happens at a closed and open switch?
A closed switch is on and An open switch is of.
What is another name for potential difference?
Voltage.
What is potential difference. (1)
The push
The bigger the p.d
.more force the current is moving with
.more energy can be transferred to the component
Units of p.d
measured in volts by a voltmeter.
What happens when p.d increases?
Current increases.
