Materials Can Become Electrically Charged

Electric Charge is a Property of Matter Static electricity is

what makes: clothes stick

together when they come out of a dryer

gives you a shock with you touch a metal doorknob.

Electric Charge is a Property of Matter Electric charges allow

an object to exert an electric force on another object without touching it.

The space around a particle where an electric charge can exert this force is called an electric field.

The strength of the field is greater near the particle and weaker farther away.

Electric Charge is a Property of Matter All protons have a

positive charge (+), and all electrons have a negative charge (-).

usually, atoms have an equal number of protons and electrons, so their charges balance each other, and the charge of the atom is neutral.

Electric Charge is a Property of Matter Particles with the

same type of charge (positive or negative ) have like charges, and particles with different charges have unlike charges.

Particles with like charges repel each other (push away)

Electric Charge is a Property of Matter Particles with

unlike charges attract each other, or pull toward each other.

Static Charges are Caused by the Movement of Electrons A static charge is a

buildup of electric charge caused by particles with the same charge.

A material develops a static charge when it contains more of one type of charged particles than another.

Static Charges are Caused by the Movement of Electrons Electrons can move

from one atom to another.

The movement of electrons through a material is called conduction.

Static Charges are Caused by the Movement of Electrons If electrons move

from one atom to another.

The atom they move to develops a negative charge.

The atom they move away from develops a positive charge.

Magnets

Magnet’s work the same way:

Like charges repel each other

Unlike charges attract one another

Materials are magnetic based on how their atoms are arranged

1. Like Charges?2. Unlike Charges?3. Static

Electricity is caused by the movement of:

4. Charge of Protons:

5. Charge of Electrons:

6. Charge of Neutrons:

7. Movement of electrons by physically touching something:

8. The charge around a magnet:

9. Magnets are stronger: (closer together, far away)

10. Can magnets become demagnetized?