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Multiple Choice

Energy is the ability to do work.

• True

• False

Multiple Choice

Follow the path.

Which image demonstrates a flow of electrical current ?

• Open Circuit

• Closed Circuit

Multiple Choice

Select the

types of Energy

• Mechanical

  Electrical

  Light

  Thermal

  Sound

• Electrical

  Thermal

  light

• Sound

  Mechanical

• Mechanical

  Electrical

  Light

  Thermal

Multiple Choice

A Circuit is the pathway through which electricity flows.

• True

• False

Multiple Choice

The energy being used is __________ and it is producing _______ energy.

• Electrical energy to sound energy.

• Electrical energy to mechanical energy.

• Sound energy to electrical energy.

• Sound energy to light energy.

Multiple Choice

The energy being used is __________ and it is producing _______ energy.

• Electrical energy to sound energy.

• Electrical energy to mechanical energy.

• Electrical energy to Light energy.

• Electrical energy to light and thermal energy.

Multiple Choice

What is a closed path for electrons to flow through?

• static electricity
• circuit
• amperes

Multiple Choice

Identify the insulator below.

• aluminum foil
• paperclip
• rubber eraser

Multiple Choice

Identify the conductor below.

• cloth rag
• plastic bottle
• gold ring

Multiple Choice

Electric current is measured in ______.

• Watts
• Volts
• Amperes

Multiple Choice

As the resistance in a circuit increases, the electric current __________.

• increases
• decreases
• stays the same

Multiple Choice

Which subatomic particles have a positive charge?

• neutrons
• electrons
• protons

Multiple Choice

What is the unit for resistance?

• Volts
• Amperes
• Ohms

Multiple Choice

A bulb has

• two terminals and one filament

• two terminals and two filaments

• multiple terminals and single filament

• single terminal and single filament

Multiple Choice

Filament of a bulb is made up of

• aluminium

• chromium

• platinum

• tungsten

Multiple Choice

Bulb glows only in

• closed circuit

• open circuit

• in both circuits

• open circuit if bulb is not fused

Multiple Choice

A battery is

• a single cell

• a combination of cells in which cells are joined (+) to (-)

• a combination of cells in which cells are joined (+) to (+)

• None of these

Multiple Choice

A substance which allows electricity to pass through it is called

• a conductor

• an insulator

• semiconductor

• superconductor

Multiple Choice

An example of a conductor is

• tap water

• salt solution

• metal wire

• all of these

Multiple Choice

Thinner wires take electricity to the ________________.

• fingers

• wall

• sockets

Multiple Choice

________________ also is form of electricity.

• Lightning

• Thunder

• None of these

Multiple Choice

Which of the following statements describes the interaction between magnetic poles?

• Like poles attract each other.

• Like poles repel each other, and opposite poles attract each other.

• Opposite poles repel each other.

• Like poles attract each other, and opposite poles repel each other.

Multiple Choice

Magnetism is...

• the force of attraction between any two objects

• the force of attraction and repulsion between like an unlike poles

• any phenomenon associated with stationary or moving electrons,ions, or other charged particles

Multiple Choice

If a negatively charged rod touches a conductor, the conductor will be charged by what method? 

• Friction
• Conduction
• Induction
• Convection

Multiple Choice

A method used to charge an object without actually touching the object to any other charged object.

• Induction

• Conduction

• Friction

• Grounding

Multiple Choice

A magnet always has both a north pole and a south pole.

True or False

• True

• False

Everything in the universe is made of tiny little particles!

They are so small that we can't see them.

Determining Charge of Atom

Count the number of electrons and protons

If it has more electrons, it is negative.

More protons, positive charge

History of Electricity

• Ancient Greeks noticed that amber produced a spark when rubbed with fur

• Edison changed the use of electricity with the light bulb

All matter is made up of particles.

​

Electrical energy is energy produced by the movement of certain particles.

​

This flow of particles is called electric current.

​

​Some text here about the topic of discussion.

​How does electricity travel?

​

​Some text here about the topic of discussion.

​ How does Electricity travel?

​

​In order to light a light bulb or turn on a computer, we need to produce a continuous electric current.

​

An electric circuit is a pathway through which electric current flows.

​Two kinds of metals build up opposite charges.

( - ) Negative

( + ) Positive​

​​Power Source

​A material that allows heat or an electric current to flow through easily.

• Good Conductors (copper/aluminum)

​​ Conductor

​A material through which heat or electricity does not easily flow through.

​​ Insulator

​Circuits deliver electrical energy to a

load, or device, that will use that energy. Loads change electrical energy into some other form of energy. Light bulbs, fans, and buzzers are common loads.

Load​

​

​

​What does a Circuit need to work ?

​

​How does electricity travel?

​

Static Electricity

• Occurs when electrical charges build up on the surface of an object

• One object gains an electron (negative charge), one loses an electron (positive charge)