Electricity
What is the flow of charged particles?
Electric Current
What particle can move between atoms?
Electrons
Electrons in a current flows from: _______ to _______ terminal of a battery.
Negative to positive
What gives energy (voltage) to charged particles in a circuit?
battery
What makes a good conductor? Give an example.
A material that allows free charged particles to move easily from one atom to another.
Copper, Gold
What particles are in the center of the atom?
Protons and Neutrons
Which circuit has only 1 path for electrons to flow through?
Series
What happens to current if there is more voltage?
Current will increase. Bulbs will be brighter.
What are 2 indicators of electrical energy?
Light
Heat
What is the area called where the protons and neutrons are located?
Nucleus
What happens to resistance in a parallel circuit when you add bulbs?
Resistance goes down
Which type of circuit will have less current through each bulb as you add bulbs?
Series.
What must be true about an electric circuit for there to be current?
If there is electric current, then the circuit is closed.
How do like charges behave (negative and negative)?
They repel
How many pathways does a series have for electrons to flow through?
One
Why are bulbs in a parallel circuit brighter?
As bulbs are added in parallel, resistance decreases. The voltage is the same across each resistor and the current increases, making the bulbs glow brighter.
What is an insulator? Define it and give an example.
A material that does not allow electrons to flow between atoms.
Glass, plastic, rubber
How do opposite charges behave (negative and positive)?
Opposite charges attract
What happens to resistance in a series circuit when you add bulbs?
It goes up.
What happens to the voltage in a series circuit as you add bulbs?
The voltage is divided by the number of bulbs added.