Electricity Test

Electricity

By MICHAEL SOSNOWSKI

Multiple Choice

Electric current is defined as

• detect electric current

• negative terminal to positive terminal

• the flow rate of electric charges through a conductor

Multiple Choice

What is the danger of broken insulation?

• People can get electric shock.

• Appliances will be damage.

• A lot of energy is wasted.

Multiple Choice

What are the two types of electricity?

• Current and voltage

• Series and parallel

• Static and current

Multiple Choice

What is used to measure electric current?

• Voltmeter

• Ammeter

• Wattmeter

Multiple Choice

Electricity that flows in a closed path is called a

• path
• current
• circuit

Multiple Choice

What is voltage measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

Multiple Choice

What is current measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

Multiple Choice

Ashley is classifying some objects as conductors or insulators. What is the difference between conductors and insulators?

• A conductor allows electrical current to flow through it easily, while an insulator does not.

• An insulator allows electrical current to move through it easily, while a conductor does not.

• An insulator is a metal, while a conductor is not a metal.

Multiple Choice

Abbie was making breakfast before school and used her toaster to warm her bagel. What energy transformation took place within her toaster?

• Electrical energy to heat and light energy.

• Electrical energy to sound energy.

• Electrical energy to light and sound energy.

Multiple Choice

Which of the following is an example of human-harnessed electricity?

• Lightning striking a building

• Getting a small shock when touching a doorknob

• A hydroelectric dam

Multiple Choice

The diagram shows an electrical circuit.

What object below could be placed in the open space to act as a conductor and complete the circuit?

• penny

• toothpick

• eraser

• crayon

Multiple Choice

The image shows a magnet with iron filings on a piece of paper. Where is the magnetic field the strongest?

• The magnetic fields are the strongest in the middle of the magnet.

• The magnetic fields are the strongest under water.

• The magnetic fields are strongest at the poles.

Multiple Choice

In order to work, a circuit must be:

• Open

• Closed

Multiple Choice

An example of a conductor is:

• Steel, Copper, any metal

• Wool, Cotton, any Clothing

• Any Plastic

Multiple Select

An example of an insulator is: (Hint: Pick 2)

• Silver

• Glass

• Copper

• Plastic

Multiple Choice

The shock you sometimes feel when you touch a metal doorknob on a dry day is electric ________.

• Current

• Discharge

• Resistance

Multiple Choice

A particle that carries a negative electric charge is called a(n) ______.

• neutron
• atom
• proton
• electron

Multiple Choice

An example of a voltage source is a _____.

• voltmeter
• battery
• resistance
• switch

Multiple Choice

Your hair might be attracted to your comb as your hair and the combe become oppositely charged.

• true
• false

Multiple Choice

A neutral object becomes negatively charged when it loses electrons.

• true
• false

Multiple Choice

If the lights are off, the circuit is

• closed
• open

Multiple Choice

Two types of circuits are

• parallel and magnetic
• electromagnetic and series
• series and parallel

Multiple Choice

The flow of electricity requires a

• complete path
• incomplete path
• insulated current

Multiple Choice

True or False, Lighting is a form of static electricity.

• True
• False

Multiple Choice

Parts of the atom

• Protons, negatons, elephantons

• neutrons, protons

• neutrons, protons, electrons

Multiple Choice

Part of the atom with negative charge

• neutron

• electron

• proton

• negatron

Multiple Choice

Part of the atom with positive charge

• neutron

• electron

• proton

• negatron

Multiple Choice

Part of the atom with neutral charge

• neutron

• electron

• proton

• negatron

Multiple Choice

Opposite charges

• repel

• attract

• do nothing

Multiple Choice

Electricity is the movement of electrons

• True

• False

Multiple Choice

Why is electrical wiring usually made of copper?

• copper is not magnetic

• copper conducts electricity

• copper is an insulator

Multiple Choice

Why is electrical wiring usually covered in a layer of plastic?

• to make it look nice

• to help electricity flow along the wire

• to make it safe

Multiple Choice

What type of charge does the atom have?

• positive

• negative

• neutral