Electricity and MagnetismOpposites

AttractMagnetic

PersonalitiesIt’s

ElectricCircuit

CitySuprises?

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FJ

Column 1, #1

Answer: B - a paperclip is correct!

a) b)

c) d)

Which object will be attracted to a magnet?

Magnetic Personalities

Answer: D - inside of a mini-van.

Out of the following choices, which is the safest place to be during a lightening storm?

a) In a lake.

b) In an open field.

c) Under a apple tree.

d) Inside of a mini-van.

Surprises

It’s Electric

Answer: C - static electricity

An object with a buildup of electric charges on its surface is charged with _________.

a) Solar power

b) Electromagnetism

c) Static electricity

d) Electric discharge

Suprises

What is the long, thin wire coiled in an incandescent bulb called?

a) A fixture

b) Mercury and argon vapor

c) A switch

d) A filamentAnswer: D - a filament

Magnetic Personalities

Answer: B - magnetic field

The space in which the force of a magnet can act is called its ________.

a) Electromagnetism

b) Magnetic field

c) Electric charge

d) Magnetic charge

Magnetic Personalities

Answer: C - a compass!

An instrument with a magnetized needle that is allowed to swing freely is called a ________.

a) lodestone

b) switch

c) compass

d) magnetic pole

It’s Electric

Answer: A - mercury and argon vapor

A fluorescent bulb glows when electricity flows through __________________.

a) Mercury and argon vapor

b) Hot air

c) A tungsten wire filament

d) An electromagnet

It’s Electric

Answer: D - Light and heat energy!

This object changes electricity into ______________.

a) Magnetic current and sound waves

b) Sound waves and heat

c) Light and electric current

d) Light and heat energy

Opposites Attract

Answer: B - opposites attract!

The charged objects are hung from thin strings so that they can move freely. In which diagram do the objects have opposite charges?

a) c)

b) d)

Opposites Attract What will happen when the two balloons

are brought closer together?

a) The balloons will pop.

b) Positive charges will move from one balloon to another.

c) The balloon will pop.

d) The balloons will attract each other. Answer: D - the balloons will attract each other.

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Surprises

Answer: A - energy of motion into electrical energy.

How is energy changing in this picture?

a) Energy of motion into electrical energy.

b) Energy of motion is changing to chemical energy.

c) Heat and light are changing to electrical energy.

d) Heat and light are changing to chemical energy.

It’s Electric The giant electric discharge that occurs

when negative charges jump between a cloud and the ground is called ___________.

a) An electrical circuit

b) A thunderstorm

c) Lightning

d) neutral

Answer: C - lightning

Opposites Attract

Magnets on the maglev train cause the rain to rise off the rail because _______________.

a) The magnets don’t have any poles.

b) Opposite poles are facing each other.

c) Like poles are facing each other.

d) The magnets have more than two poles.

Answer: C - like poles are facing each other.

It’s Electric

Answer: A - conductors is correct!

Materials that have low resistance and allow electricity to pass through them most easily are called _____________.

a) conductors

b) fixtures

c) electromagnets

d) insulators

Surprises

What device is found inside every electric motor?

a) a light bulb

b) a clock

c) a magnet

d) An electromagnet Answer: D - an electromagnet

Magnetic Personality

Answer: D - it can be turned on or off!

What is one advantage of an electromagnet over a natural magnet?

a) An electromagnet can pick up steel.

b) An electromagnet produces a magnetic field.

c) An electromagnet produces electricity.

d) An electromagnet can be turned on or off.

Surprises

Answer: D - plastic, rubber, glass

Which group lists three good insulators?

a) Wood, rubber, aluminum

b) Paper, steel, glass

c) Plastic, water, copper

d) Plastic, rubber, glass

It’s Electric

Answer: A - Thomas Edison

Who invented the lightbulb?

a) Thomas Edison

b) George W. Bush

c) Jerry Seinfield

d) Albert Einstein

Circuit City

Answer: D The electricity stops flowing and light B will go out.

In the circuit, if light bulb A is removed what will happen?

a) the battery stops workingb) light bulb B stays litc) light bulb A stays litd) the electricity stops flowing

A B

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Daily Double

Daily Double

Whose Class is better?A) Ms. Swick’sB) Mr. CastellanosC) Mrs. MendozaD) They are equally cool

Opposites Attract

What is an antonym for conductor?A) InsulatorB) FilamentC) ConstantinopleD) Glass

Answer A! Insulator

Circuit CityA ________ is a circuit in which electric

charges can flow only in ONE path.A) Parallel circuitB) Series circuitC) Serious CircuitD) Fast Circuit

Answer C! Series circuit

Circuit CityA ________ is a circuit in which electric

charges can flow in TWO or more paths.

A) City circuit

B) Bi-circuit

C) Series circuit

D) Parallel circuit

Answer B! parallel circuit

Magnetic PersonaltiesWhat causes this doorbell to ring?

A) A current in the wire creates a magnetic field that pulls the hammer to the bell.

B) The electromagnet moves, creating an electric current in the wire that rings the bell.

C) The bell hits the hammer, creating an electric current in the electromagnet that produces a sound.

D) The bell produces a magnetic field, which creates an electric current in the electro magnet.

Answer A! A current in the wire creates a magnetic field that pulls the hammer to the bell.

Opposites Attract

You put two doughnut magnets on a pencil. One magnet floats over the other one, why does this happen?

A) Like poles are facing each otherB) It’s a miracleC) Opposite poles are facing each otherD) There is an electric current between the two magnets

Answer A! Like poles are facing each other

Final Jeopardy

Briefly explain the difference between a series circuit and a parallel circuit? How many paths does each have?