Matter & Atoms
What is matter?
Matter is anything that has mass and takes up space
What happens between opposite charges?
They attract
What is static electricity?
A buildup of excess electric charge on an object
What type of material allows electrons to flow easily?
How many ways can electric charge be transferred?
3
What is the simplest form of matter?
Atoms
What happens between like charges?
What causes a shock during static electricity?
When the charge is neutralized
What type of material blocks the flow of electrons?
Insulator
Which type of charge transfer requires direct contact?
Conduction
Name the three subatomic particles.
Protons, Neutrons, Electrons
What law states charge cannot be created or destroyed?
Give one real-life example of static electricity.
Lightning, doorknob shock, clothes sticking together
Name one common conductor.
Metal (copper)
Which type of charge transfer involves rubbing objects together?
Friction
When is an atom electrically neutral?
When the number of protons equals electrons
According to the law of conservation of charge, what always stays constant?
Net electric charge
What must happen for static electricity to discharge?
Charge must move to neutralize
Name two insulators.
Plastic, rubber, glass, wood, air
Which type of charge transfer works over a distance without touching?
Induction
Which particle moves to create static electricity?
Electrons
If electrons move from one object to another, is charge created, destroyed, or transferred?
Transferred
Why does rubbing two objects together often cause static electricity?
Rubbing transfers electrons between objects
Why are wires metal on the inside and rubber/plastic on the outside?
Metal conducts electricity; rubber/plastic insulates for safety
What happens to a neutral object during induction?
Polarization Occurs