Static Electricity
Circuits
Conductors/Insulators
Magnets
Atoms
100
Objects that have LIKE charges:
Objects that have UNLIKE charges:
Repel
Attract
100
Name the 4 parts of a circuit
Battery, wires, bulb, switch (optional)
100
A conductor is...
a material through which electric charges can easily flow
100
What is a magnet?
An object that can push or pull on iron without touching the metal
100
Protons are... what charge?
Positive
200
What is an example of static electricity in nature?
Lightning!
200
What is the function of a battery in a circuit?
It provides the “push” to keep electrons moving in the circuit
200
An insulator is...
An insulator is a material through which an electric charge cannot easily flow
200
If the north poles of two magnets are close, they will:
REPEL
200
Neutrons are... what charge?
Neutral
300
You rub a plastic comb with wool. Why will the comb then attract small bits of paper with a positive charge?
The comb has a magnetic attraction.
The bits of paper have electric discharge.
The comb and paper both have a negative charge.
The comb has a negative charge.
4. The comb has a negative charge.
300
Is this an open or a closed circuit?
OPEN
300
Give 3 examples of insulators
Most plastics
Glass
Cloth
Sand
Rubber
Wood
300
How can you turn a magnet into an electromagnet?
Describe OR Draw a picture.
300
Electrons are... what charge?
Negative
400
What is it called when electrons "jump" from one object to another?
Electric discharge
400
What kind of circuit is this?
Parallel
400
Give 3 examples of conductors
Copper
Iron
Gold
Water
Aluminum
Steel
Silver
400
A magnetic field and a magnet are strongest at which parts?
The POLES
400
When an object has too many electrons, it has a _____________ charge.
Negative
500
Explain what happens when you rub a balloon on your head and then stick it to the whiteboard.
The balloon picks up electrons from your hair, giving it a negative charge and then attracts to the positive charge of the whiteboard.
500
In a series circuit that has two light bulbs, what happens to one of the light bulbs when the other bulb burns out?
The good light bulb will also go out.
500
Explain how you can test whether an object is an insulator or a conductor
Build a simple circuit and see if the object lights the bulb or not.
500
Name two advantages of electromagnets
They can be turned on and off
They can be made stronger or weaker by changing the strength of the battery or wire loops
The direction of the fields can be changed (switch the poles) by switching the ends of the battery
500
Which of these devices could be removed without breaking an electric circuit?
A. bulb
B. battery
C. switch
D. wires
C. switch