Electric current is made up of flowing ____________.
Electrons
100
Glass, plastic, and rubber are examples of _____________.
insulators
100
Give two examples of static electricity you have seen at home.
Clothes taken from a dryer clinging together, sparks after walking across carpet and touching an object. Other possible answers.
200
You can use this to open and close a circuit.
Switch
200
This is produced when an object has an unequal number of protons and electrons
Static electricity
200
When a switch is turned off, the circuit is ____________.
open
200
Most metals are good ___________.
Conductors
200
Tell how electric current and a circuit are related.
The movement of electrons along a path is the current, the path through which a current flows is the circuit.
300
The smallest part of matter
Atom
300
Opposite charges (repel, attract) each other
attract
300
Wire is often made from ___________.
copper
300
The flow of current can be controlled with a __________.
Switch
300
Tell what a static discharge is and give an example.
The movement of electrons from one object to another. An example is lightning.
400
Negatively charged particle
Electron
400
A positively charged particle is called what?
Proton
400
The movement of electrons along a path is called a ___________.
current
400
A paper clip is an example of a ______________.
Conductor
400
Why might your hair stand out while you are combing it?
The comb attracts electrons from the hair. Each hair is positively charged and with like charges the hairs repel each other.
500
Same charges (repel, attract) each other
Repel
500
This occurs when electrons move from one object to another so that the objects have no electrical charge
Static discharge
500
The path through which an electric current flows is a __________.
circuit
500
A comb is an example of an ________________
Insulator
500
Be able to label the parts of the atom.
Proton- Has a positive charge
Neutron- No electric charge
Electron- Found outside the nucleus and have a negative charge
Nucleus- The center of the atom