Lesson 25
What is the smallest piece of matter called?
An atom
What is the term for the path through which electricity flows?
Circuit
How many parts is a circuit made of?
3
This force can be a push or a pull.
Magnetism.
A magnet created only when electrical current is running through it.
Electromagnet.
This part of an atom has a positive charge.
Proton
Conductors are commonly made of what material?
Metal.
Name all 3 parts of a circuit.
Power source (makes the electricity), path (moves the electricity), and load (powered by the electricity).
What is the term for the ends of a magnet?
Poles.
What is a solenoid?
Wire coil used to create an electromagnet.
This part of an atom has a negative charge.
Electron
This material stops the flow of electricity.
Insulator.
This circuit has one power source, one path, and multiple loads.
Series circuit.
Lucky Pick!
What is the best day of the week?
It's Monday! Right?!
Also acceptable - any other day!
To create an electromagnet:
Coil a solenoid around a metal object and then apply _______.
Electricity.
What charge does a neutron have?
No charge - it's neutral.
What does a resistor do to the flow of electricity?
Slows it down.
How is a parallel circuit different from a simple circuit?
A parallel circuit has more than one path, a simple circuit only has one path.
This is an invisible area surrounding a magnet where magnetism is creating a force.
Magnetic field.
What part of an electromagnet becomes the magnet when electricity is applied?
The metal.
This type of electricity is due to an imbalance.
Static electricity
List a specific example of a conductor and an insulator.
Answers will vary.
Something metal and something plastic or rubber?
Explain the difference between an open circuit and a closed circuit.
An open circuit has a gap or opening in the path and the electricity cannot flow to the load. A closed circuit does not have a gap, and electricity flows to and powers the load.
How do magnets need to be aligned in order to create a pull force?
Opposites attract! When the opposite poles of a magnet are close enough to create a magnetic field, a pull is created.
Both electricity and magnets are caused by the flow of _______.
Electrons.