P5 Flashcards
Name the 4 magnetic metals.
Iron, Steel, Nickel, Cobalt
what is the name of the process of inducing magnetism in an unmagnetised ferromagnetic material without any contact with the magnet?
Magnetic Induction
Define magnetic induction
The process of inducing magnetism in an unmagnetised ferromagnetic material without any contact with the magnet.
Induced magnetism is a ________ process.
temporary
What are insulators?
materials where electrons are not free to move
Give some examples of an insulator
- plastic
- wood
- rubber
- glass
- cotton
_____________ is when charge “builds up” on an object and doesn’t move.
Static electricity
Two different rods will _______ each other if they have _______ charge.
attract, different
Two different rods made of the same material will _______ each other due to having the _______ charge.
repel, same
A charge builds up on the dome due to electrons being “_______” by the belt. If a big enough ________ is built up then the voltage becomes high enough to _______ the air molecules and the electrons “________” down to Earth - this is an electric ________.
rubbed off, charge, ionise, jump, current
Define electric current
The rate of flow of electric charge
I = Q/t
Change this into a word equation.
Current = charge/time
The energy given to electric charge to make them move is called?
voltage/potential difference
Define electrical resistance
Electric current prevented from flowing
