Static Electricity Review

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Electric Charge & Static Electricity

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Presentation transcript:

Static Electricity Review

Which part of the atom can move from one atom to another? + – Proton (positive charge) + neutron (neutral) electron (negative charge) – atom nucleus

Which part of the atom can move from one atom to another? The electron + – + electron (negative charge) – atom nucleus

What happens to make an object have a negative charge? If electrons > protons  negative charge (gains electrons)

What happens to make an object have a positive charge?

If electrons < protons  positive charge (lost electrons)

What are 3 ways to transfer electric charge

3 ways to transfer electric charge Conduction Induction Friction

Type of Electron Transfer when Objects make Contact

Conduction Excess electrons pass to a neutral object when touched

Type of Electron Transfer when Electrons move from a distance without contact

Induction Electrons transferred when a neutral object is near a charged object (in the electric field)

Type of Electron Transfer when Electrons are moved by force

Friction moving electrons by force Type of Electron Transfer when Electrons are moved by force

What are Insulators?

Insulators Insulators: materials that do NOT allow electrons to flow through them easily. Insulators can be easily charged by friction as the extra electrons gained CANNOT easily escape.

Examples of Insulators? Insulators: materials that do NOT allow electrons to flow through them easily.

Conductors and Insulators Copper Rubber Aluminum Cloth Humans Hair Water Plastic Most metals Glass Paper

Which of these materials allow electrons to flow through them? Conductors Insulators Copper Rubber Aluminum Cloth Humans Hair Water Plastic Most metals Glass Paper

Which of these materials will build up static electricity? Conductors Insulators Copper Rubber Aluminum Cloth Humans Hair Water Plastic Most metals Glass Paper

What is the difference between insulators and conductors? Copper Rubber Aluminum Cloth Humans Hair Water Plastic Most metals Glass Paper

What do the built up electrons create around the charged object?

What do the built up electrons create around the charged object? An electric field

What will happen?

What will happen? X will repel like charges repel

What will happen? Y will attract in a neutral object like charges repel and the opposites attract

What will happen? Z will attract opposites attract

What will happen to the man?

How does the man get positively charged?

How does the man get positively charged? He gets charged by friction

Why does the man get zapped?

Why does the man get zapped? He is positively charged and the electrons jump to him during electric discharge

Why are many electrical objects grounded?

Why are many electrical objects grounded? So extra electrons go to the ground and do not build up on materials to shock people

Maybe the caravan was struck by lightning. The van and the balloon have opposite charges so they stick together. The man is charged and has a lot of negative charges.

Why is her hair standing up?

Electric Discharge