electricity exam
What is the law of attraction and repulsion
like charges repel, opposites attract, neutral charges attract each other
what is static electricity
Electricity that doesnt move
what is the difference between a conductor and a insulator
Conductor allowed electrons to move freely, insulators resist the movement
what are the three ways to charge something with static electricity
friction, induction, conduction
what are two ways grounding occurs woth a charged object
if you touch something positive to the ground negative charge is supplied and vice versa
what are the differences between charging by induction and conduxction
conduction requires direst contact and induction does bot
explain how lightning forms
negative charged go to the bottom of the cloud while positive go to the top, they attract and create lightning
What are the risks woth lightning
lightning can hit yiu and stop your hesrt
how do lightning rods work
the rods are high up and are conductors meaning the lightning is attractes to it. It then safely displaxes the electricity
describe ohms law
Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.
what is the difference between kinetic energy and potential energy
one is the energy of what can be and one is the energy of what is
list five types of energy sources and examples of each
nuclear energy, is energy coming from the nucleus of atoms, fossil energy, is energy coming from things like bones organic matter or coal. solar energy, is energy harvested from sun rays. hydro energy, is energy coming from the flow of water. wind energy, is energy harvested from the flow of wind
what is the difference between a paralell cirxuit and a series circuit
In a series circuit, the components are connected in a line and the same current flows through all of them. In a parallel circuit, the components are connected so that each component has its own separate branch and the same voltage is applied to each component