Electrical Charges
What are the two types of electrical charges?
Positive and negative
What is static electricity caused by?
The buildup of electric charges
What is a circuit?
The path that electric charges flow through.
What kind of energy is produced when electricity heats a toaster?
Thermal Energy
What do we call materials electricity can flow through easily?
Conductors
What happens when two objects have the same charge get close together?
They repel or push apart
Rubbing a balloon on your hair makes your hair stick to it, why does this happen?
Charged balloon attracts uncharged hair
What does a circuit need for electricity to flow?
A closed or unbroken path
What type of energy is produced when electricity powers a lightbulb?
Light Energy
Give one example of a conductor
Metal objects
What happens when a charged object is brought near an uncharged object?
The uncharged object is attracted.
True or False: You must touch an object for static electricity to attract it.
False
What happens in an open circuit?
Electricity does not flow
When a fan runs using electricity, what form of energy is produced?
Motion/mechanical energy
What type of material stops electricity from flowing?
Insulators
What do we call the tiny particles inside atoms that carry electrical charges?
Electrons and protons
What type of energy transfer causes static electricity?
Friction or rubbing
What do we call the flow of charges in a circuit?
Electric current
What law explains that electricity is not created or destroyed but can only be changed?
Law of Conservation of Energy
Which object is an insulator: rubber band, metal nail, or penny?
Rubber Band
Why do two positively charged balloons push apart?
Because like charges repel
If Balloon A repels Balloon B, what can you conclude about their charges?
They have the same type of charge.
What direction do charges always flow in a circuit?
From negative to positive
Give two forms of energy that electrical energy can transform into
Heat
Light
Sound
Motion
Why is metal used in wires?
It is a good conductor of electricity.