Ohm's Law
Electricity
Magnetism
Energy
Circuits
100
What does each symbol stand for in Ohm's Law?
I , V , and R
I - Current
V - Voltage
R- Resistance
100
What particle is primarily involved in the flow of electricity?
An electron.
100
What are the ends of magnets or the directions of the magnetic fields called?
North and south poles
100
What happens to energy that is "lost"?
It is transformed into another type of energy (like heat or sound)
100
What is a circuit?
A closed loop that electricity can flow through.
200
What is current?
The flow of electrons or flow of electricity.
200
What has to happen before someone gets shocked with static electricity (how does it build up)?
Electrons build up (on an object)
200
The north pole of one magnet is pointed at the north pole of another magnet. What will happen?
They will repel (push away from each other)
200
What type of energy is electricity or electric energy? (hint: what do the electrons do)
Kinetic Energy
200
How many loops are in a series circuit?
1
300
What is voltage?
The force that moves electrons through a circuit or the potential difference between positive and negative.
300
What does electric current through a wire create around the wire?
A magnetic field
300
The north pole of one magnet is pointed at the south pole of another magnet. What will happen?
They will attract (pull towards each other)
300
What type of energy does friction generate?
Heat or thermal energy
300
How many loops does a parallel circuit have to have?
More than one
400
What is resistance?
How much a material resists or opposes the flow of electrons.
400
1. What is the name for materials that allow electrons to flow through them easily?
2. What is the name for materials that do NOT allow electrons to flow through them easily?
1. Conductors
2. Insulators
400
When you move a magnet near wire or wire near a magnet, what will happen?
Electricity/an electric current will be generated
400
Resistance is like friction for electrons. What type of energy is generated as current flows through a material with high resistance?
Heat or thermal energy
400
What happens to the resistance in a series circuit as you add light bulbs?
It increases.
500
What is the resistance of a circuit with a voltage of 6.0V and a current of 2.0A?
6.0V/2.0A = 3 Ohms
500
What is the term for when a single object is neutral, but has one part with more negative charges and another part with more positive charges?
Polarization
500
How does an electric motor work?
Electricity creates a magnetic field that pushes on a permanent magnet to create motion or
Electricity -> Magnetic field (pushes on magnet) -> motion
500
What type of energy is a battery?
Potential or chemical potential energy
500
What happens to the resistance in a parallel circuit as you add light bulbs/loops and WHY?
It decreases because there are more paths for electricity to flow.