Force of Electricity

Electric Forces

Presented by Kesler Science

1. What factors determine the
strength of electric forces?

Essential Questions:

What are ATOMS?

•Positive and negative charges
begin with the atom.
•Protons - positive charge
•Electrons – negative charge
•If the number of protons and
electrons is the same, the atom
has no charge or is neutral.
•Atoms tend to gain and lose
electrons easily.

Electric and Magnetic Forces

Drag and Drop

There are TWO charged types of particles in an atom.

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have a POSITIVE charge while ​

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have a NEGATIVE charge. ​

Drag these tiles and drop them in the correct blank above

Protons

Neutrons

Electrons

Atoms (cont.)

•Gain of electrons = negative
charge
•Loss of electrons = positive
charge
•A charged atom is an ion.
•Because this atom is now
positive, it will be attracted and
bond to an atom with a
negative charge. (opposites
attract)

Electric and Magnetic Forces

7P

Loses an electron

Positive Ion

Drag and Drop

If atoms GAIN electrons then that atom has a​

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charge. If the atoms LOSE electrons then that atom has a ​

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charge.

Drag these tiles and drop them in the correct blank above

negative

positive

neutral

What are electrical forces?

•Electric Forces – occur when ions
create attractive and repulsive
forces

•Electromagnetism – a force
combining both electric and
magnetic forces

Electric and Magnetic Forces

Magnetic Force

Electric Force

Electric Forces

•Electric charges create electric forces.
•Like magnets, there are two
types of charges – positive and
negative.
•Like magnets, the forces either
attract or repel.
•This is called static electricity,
which does not move through
a current.

Electric and Magnetic Forces

When you rub the balloon on your hair,
you removed electrons giving the
balloons a negative “charge”. The
balloons are now “attracted” to your
positively charge hair.

Open Ended

What is STATIC electricity?

Electric and Magnetic Forces

What is electrical current?

•Rate of flow of charged particles
•Electric charge is made up of
protons (+) and electrons (–)
•When electrons flow in a circuit,
a current is produced.
•Measured in Amperes (A)

•1A = 1,000 mA milliamperes
•1mA = 0.001 A

Ammeter – measures
the current in a circuit

Drag and Drop

Electrical

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is the constant flow of electrons from a ​

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source to a ​

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source.

Drag these tiles and drop them in the correct blank above

current

negative

positive

static

Electric and Magnetic Forces

What is a circuit?

The energy source (battery)
gives energy to electrons and
pushes them around a circuit
from the negative (-) terminal to
the positive (+) terminal of the
cell.

B – Battery

L1 and L2 – Lights

S - Switch

How do Electrons Flow?

Electron flow

-
B

S

Quick Action – Electric and Magnetic
Forces

What are differences between static and current electricity?

Electron
flow

-

Open Ended

What is the difference between STATIC and CURRENT electricity?

Multiple Choice

What is the positive part of the atom?

• neutrons

• electrons

• protons

• positrons

Multiple Choice

What are negative parts of an atom called?

• Neturons

• Electrons

• Protons

• Neutrality

Multiple Choice

What measures the amount of electrical current in a circuit?

• Ohms

• Watts

• Amps

• Volts

Poll

Should I use Quizizz for notes in the future?

• YES! This is much better than the old notes

• It's ok but don't use it all the time

• No, I hate looking at my chromebook for notes!