ATOMS I
ATOMS II
STATIC ELECTRICITY
CURRENT ELECTRICITY
ELECTRICAL CIRCUIT
100
COMPLETE THE FOLLOWING STATEMENT WITH ONE WORD.
Electricity is a type of...
Electricity is a type of ENERGY.
100
An atom is electrically neutral when...
An atom is electrically neutral when IT HAS THE SAME NUMBER OF PROTONS AND ELECTRONS.
100
What's static electricity? Give a short definition.
When electricity gathers in one place, it is called static electricity.
100
Electricity that flows is called CURRENT ELECTRICITY.
It occurs when ________ are passed quickly from one _______ to another within certain materials.
Electricity that flows is called CURRENT ELECTRICITY.
It occurs when ELECTRONS are passed quickly from one ATOM to another within certain materials.
100
An electrical circuit alllows __________ to flow through a path.
An electrical circuit alllows ELECTRONS to flow through a path.
200
WHAT IS ALL MATTER MADE UP OF?
All matter is made up of ATOMS.
200
If you ______ two objects together, _________ can move from one object to another, which makes the objects electrically _________.
If you RUB two objects together, ELECTRONS can move from one object to another, which makes the objects electrically CHARGED.
200
Static electricity occurs when there is an ______ of positive and negative charges between two electrical insulators.
Static electricity occurs when there is an IMBALANCE of positive and negative charges between two electrical insulators.
200
How do we call those materials that ALLOW electricity to travel through them easily?
ELECTRICAL CONDUCTORS
200
Which part of the electrical circuit provides the energy?
The battery or power source.
300
In the nucleus of an atom, there are ________ and _________.
In the nucleus of an atom, there are PROTONS and NEUTRONS.
300
Positive and negative charges _________ each other.
Positive and negative charges ATTRACT each other.
300
When a lot of ________ move at the same time, you might see a spark or feel a small _______.
When a lot of ELECTRONS move at the same time, you might see a spark or feel a small SHOCK.
300
WHAT ARE ELECTRICAL INSULATORS?
ELECTRICAL INSULATORS are materials that DO NOT ALLOW electricity to pass throught them.
300
This part of the electrical circuit opens and closes the circuit and can stop the flow of electricity.
The switch.
400
CORRECT THE FOLLOWING STATEMENT.
Electrons, with a positive electric charge, move around outside the nucleus.
Electrons, with a NEGATIVE electric charge, move around outside the nucleus.
400
LOOK AT THE PICTURE AND COMPLETE THE SENTENCE.
_______ charges _________ other _______ charges.
POSITIVE charges REPEL other POSITIVE charges.
400
_________ charges attract. The electrons of a negatively charged object are attracted to a ________ charged object.
OPPOSITE charges attract. The electrons of a negatively charged object are attracted to a POSITIVELY charged object.
400
Wires and metals are examples of...
a) electrical insulators b) electrical conductors
Wires and metals are examples of ELECTRICAL CONDUCTORS.
400
The ______________ transforms the electricity into other forms of energy.
The RESISTOR trnasforms the electricity into other forms of energy.
500
Protons have a __________ electric charge and neutrons have ____ electric charge.
Protons have a POSITIVE electric charge and neutrons have NO electric charge.
500
Is this atom positively or negatively charged? Explain your answer.
This atom is POSITIVELY CHARGED because it has more protons than electrons.
500
Can you explain how lighting is caused?
Lightning is caused by STATIC ELECTRICITY.
Rain clouds move very fast. The water, air and ice particles RUB agaisnt each other and create a STATIC ELECTRICAL CHARGE.
500
Can you name two examples of ELECTRICAL INSULATORS?
500
___________ conduct electricity.
WIRES conduct electricity.