Quiz about Electricity and Magnetism definitions

Question 1

A device used to show the presence of electric charge

Accepted Answer

Electroscope

Answer

Capacitor

Answer

Voltmeter

Answer

Resistor

Question 2

The relationship between the voltage, V, current, I, and resistance, R in an ohmic circuit.

Accepted Answer

Ohm's Law

Answer

Newton's Law

Answer

Einstein's Law

Answer

Sabin's Law

Question 3

The quality of materials that are weakly repelled by other magnets and are magnetic only when in an external magnetic field

Example.

Water

Accepted Answer

Diamagnetic materials

Answer

Paramagnetic materials

Answer

Superparamagnetic materials

Answer

Ferromagnetic materials

Question 4

a dangerous circuit in which a conducting wire is connected directly across the two battery terminals

Accepted Answer

Short circuit

Answer

Open circuit

Answer

Series circuit

Answer

Parallel circuit

Question 5

the response of a mineral when exposed to magnetic materials; a physical property

Example.

magnetite displays strong attraction to magnetic fields

Accepted Answer

Magnetism

Answer

Electrical conductivity

Answer

Thermal expansion

Question 6

Conducting leaves inside an electroscope that spread apart when charge is present

Accepted Answer

Electroscope Leaves

Answer

Electroscope Magnets

Question 7

A continuous path for the flow of electricity.

Accepted Answer

Circuit

Answer

Resistor

Answer

Battery

Answer

Wire

Question 8

Permanently magnetic materials consisting of iron, often mixed with cobalt, nickel, or alnico.

Example.

Steel (an iron alloy)

Accepted Answer

Ferromagnetic Materials

Answer

Paramagnetic materials

Answer

Diamagnetic materials

Question 9

a piece of material in which most molecules align with the others, giving the piece of material a north pole and a south pole resulting in a magnetic field (force field)

Example.

refrigerator magnets

Accepted Answer

Permanent Magnet

Answer

Superconductors

Answer

Conductive materials

Answer

Diamagnetic magnet

Question 10

a coil of wire that is magnetic because current flows through it

Example.

solenoid

Accepted Answer

Electromagnet

Answer

transformer

Answer

inductor

Answer

capacitor

Question 11

A(n) electric property of matter that produces interactions with an electric field; can be positive or negative

Example.

protons, electrons

Accepted Answer

Electric charge

Answer

Electric current

Answer

Magnetic field

Answer

Voltage

Question 12

lines drawn to represent the direction and strength of a magnetic field.

Accepted Answer

field lines

Answer

Flux lines

Answer

Electric lines

Question 13

Term definition.

the unit for resistance

Accepted Answer

Ohm

Answer

Watt

Answer

Ampere

Answer

Volt

Question 14

The quality of materials that form strong magnets and generally stay magnetized even when removed from an external magnetic field

Accepted Answer

Ferromagnetic materials

Answer

Diamagnetic materials

Answer

Superconductors

Answer

Paramagnetic materials

Question 15

A device that uses electromagnetic induction to produce an electrical current (mechanical energy to electrical energy).

Accepted Answer

Generator

Answer

Capacitor

Answer

Battery

Answer

Transformer

Question 16

A continous route for electricity to flow through a material that conducts electricity.

Accepted Answer

Conducting Path

Answer

Wire

Answer

Battery

Answer

Resistor

Question 17

the potential magnetic force in the space surrounding a magnet; proportional to the force on a magnetic pole in the space around the magnet

Accepted Answer

magnetic field

Answer

gravitational field

Answer

electric field

Answer

magnetic charge

Question 18

The constant used in the calculation of the electrostatic force.

Accepted Answer

Coulomb's constant (k)

Answer

Avogadro's number

Answer

Planck's constant

Answer

Newton's constant

Question 19

The place from which electrical current is produced such as a battery, a wall outlet, a generator, or a solar panel.

Accepted Answer

Voltage Source

Answer

Current transformer

Answer

Power regulator

Answer

Electrical device

Question 20

A device that opposes the flow of electricity such as a lamp or a motor.

Accepted Answer

Resistor

Answer

Transistor

Question 21

The main difference between a resistor and a transistor is that a resistor limits the flow of electrical current, while a transistor amplifies and switches electrical signals

Accepted Answer

true

Answer

not me

Question 22

The quality of materials that are weakly attracted to other magnets and are magnetic only when in an external magnetic field

Example.

Lithium

Accepted Answer

Paramagnetic materials

Answer

Diamagnetic materials

Answer

Ferromagnetic materials

Answer

Superparamagnetic materials

Question 23

a material, often metal, through which electrons can move freely

Accepted Answer

Conductor

Answer

Insulator

Answer

Semiconductor

Answer

Resistor

Question 24

an atom with a net electrical charge because it lost or gained an electron

Accepted Answer

Ion

Answer

Molecule

Answer

Atom

Answer

Compound

Question 25

an ion cannot be neutral; by definition, an ion is an atom or molecule that has gained or lost electrons, resulting in a net positive or negative charge, so it cannot be electrically neutral.

Accepted Answer

true

Answer

not me

Question 26

low-mass, negatively charged particle; surrounds the nucleus of an atom

Accepted Answer

electron

Answer

neutron

Answer

proton

Answer

positron

Question 27

A coil of wire around a central iron piston.

Accepted Answer

Electromagnet or Solenoid

Answer

Capacitor

Answer

Inductor

Answer

Transformer

Question 28

a material that prevents or limits the flow of electricity

Example.

glass, air

Accepted Answer

Insulator

Answer

Conductor

Answer

Superconductor

Answer

Semiconductor

Question 29

how well a material conducts electricity; a physical property of matter

Accepted Answer

Electrical conductivity

Answer

Optical density

Answer

Magnetic permeability

Answer

Thermal conductivity

Question 30

The process of inducing a current by moving charges through a magnetic field.

Accepted Answer

Electromagnetic induction

Answer

Thermal conduction

Answer

Static electricity

Answer

Magnetic resonance

Question 31

An electrical circuit in which all components are on the same continuous electrical path.

Accepted Answer

Series circuit

Answer

Parallel circuit

Answer

Open circuit

Answer

Short circuit

Question 32

The flow rate of charge, measured in amps (A).

Example.

3 amps (3 A)

Accepted Answer

current

Answer

voltage

Question 33

a material without a net positive or negative charge

Accepted Answer

Neutral material

Answer

Positively charged material

Answer

Negatively charged material

Answer

Charged material

Question 34

the north and south ends of a magnet

Accepted Answer

Magnetic Poles

Answer

Positive end and Negative end

Answer

East pole and West pole

Answer

Front end and Back end

Question 35

a piece of material that acts like a magnet after being placed in a magnetic field; may lose its magnetic alignment immediately after the magnetic field is removed or may slowly lose magnetism over time

Example.

a steel paperclip that has been rubbed on a permanent magnet

Accepted Answer

Temporary Magnet

Answer

Superconductors

Answer

Diamagnetic material

Answer

Paramagnetic material

Question 36

the lowest potential, or voltage, in a circuit

Accepted Answer

Ground

Answer

Voltage source

Answer

Negative terminal

Answer

Positive terminal

Question 37

the force of one charged particle on another

Accepted Answer

Electrostatic Force

Answer

Newton's law of gravitation

Answer

Ohm's law

Answer

Faraday's law of electromagnetic induction

Question 38

a drawing that uses symbols to show how components should be connected in a circuit

Accepted Answer

Schematic diagram

Answer

Block diagram

Answer

Wiring diagram

Answer

Circuit layout

Question 39

How do magnetic field lines show the difference between stronger and weaker magnetic fields?

Accepted Answer

Lines are closer together when the field is strong.

Answer

Lines have more arrows on them when the field is strong.

Answer

Lines are further apart when the field is strong.

Answer

Lines are darker when the field is strong.

Question 40

Electromagnetic induction works because of which of the following?

Accepted Answer

Charged particles experience a force when they move across a magnetic field.

Answer

Magnetism and electricity are essentially the same thing.

Answer

Rotating a wire or a coil makes electrons flow in the wire or coil.

Answer

Magnets experience a force when they are near charged particles.

Question 41

Where is the magnetic field the strongest on the outside of a permanent magnet?

Accepted Answer

closest to the poles

Answer

furthest from the poles

Answer

near the middle, lengthwise

Answer

at any point touching the magnet

Question 42

Which of the following are synonyms for the term "voltage"?

Select all answers that apply.

Accepted Answer

potential difference

Accepted Answer

potential

Accepted Answer

voltage drop

Answer

potential energy

Question 43

What makes magnetized iron different from unmagnetized iron?

Accepted Answer

The magnetic domains of magnetized iron are aligned.

Answer

Magnetized iron has a greater density.

Answer

A current runs through magnetized iron.

Answer

Magnetized iron is full of magnetic particles, such as magnetite.

Question 44

____ becomes magnetic when its magnetic domains are aligned. Domains are small, magnetic, grains of iron that make up an iron sample.

Accepted Answer

Unmagnetized iron

Answer

Aluminum

Answer

Copper

Answer

magnetized iron

Question 45

difference in magnetized iron vs unmagnetized iron

Accepted Answer

in magnetized iron, the tiny magnetic domains within the material are mostly aligned in the same direction , creating a net magnetic field

Accepted Answer

unmagnetized iron, these domains are randomly oriented, resulting in no overall magnetic field

Answer

in unmagnetized iron, the tiny magnetic domains within the material are mostly aligned in the same direction , creating a net magnetic field

Answer

magnetized iron, these domains are randomly oriented, resulting in no overall magnetic field

Question 46

If a metal wire is magnetic and attracts metallic objects, it can be concluded that:

Accepted Answer

there is an electric current moving through the wire

Answer

the wire is permanently magnetic

Answer

the wire is copper

Answer

the wire would repel non-metallic objects

Question 47

A conducting sphere of diameter D is initially charged to a potential V₀. It is then connected by a conducting wire to a conducting sphere of diameter D/2 which is also initially charged to a potential V₀. Which of the following correctly describes the flow of charge through the wire?

Accepted Answer

No net charge will flow between the spheres.

Answer

Charge will flow until the smaller sphere holds an amount of charge equal to that of the larger sphere.

Answer

Charge will flow until the potential of the smaller sphere is one-fourth that of the larger sphere.

Answer

Charge will flow until the capacitance of the two spheres is zero.

Question 48

In which of the following situations would the force of electrostatic attraction increase between two charged objects?

Accepted Answer

a positively charged object moving towards a negatively charged object

Answer

a negatively charged object moving towards a negatively charged object

Answer

a positively charged object moving towards a positively charged object

Answer

a neutral object moving towards a neutral object

Question 49

What is a neutral material?

Accepted Answer

a material with neither a positive nor a negative charge

Answer

a material with missing neutrinos

Answer

a material with either a positive or a negative charge

Answer

a material with extra neutrons

Question 50

Students record their observations, relating the number of batteries used to the brightness of the light bulb. What extension activity would best help students use scientific reasoning to explain their observations?

Accepted Answer

Students predict what would happen if a fan were used in place of a light bulb.

Answer

Students repeat the activity with a switch added to each circuit.

Answer

Students reverse the direction of the batteries in each circuit and make additional observations.

Answer

Students replace the existing wires with wires made from a different material.

Question 51

The circuit a battery, two lamps, a switch and several conducting wires, however when the switch is closed, the lamps will not light and the battery will get hot. There is something wrong with the circuit. What is this kind of circuit called?

Accepted Answer

short circuit

Answer

broken circuit

Answer

open circuit

Question 52

An electromagnet can be formed from a copper wire wound around the nail. What else is required for the electromagnet to become magnetic?

Accepted Answer

a power supply so current will flow in the wire

Answer

paper clips or something the electromagnet can pick up

Answer

a switch to turn the electromagnet on and off

Answer

it must be on Earth to absorb the influence of Earth's north and south poles

Question 53

A positively charged particle is placed halfway between a negative charge and a positive charge. If the negative charge is to the left of the particle and the positive charge is to the right, in which direction will the particle tend to move?

Accepted Answer

It will move to the left.

Answer

It will move to the right.

Answer

It will oscillate between the two charges.

Answer

It will remain at rest.

Question 54

A string of lights is used to decorate a classroom ceiling. When one bulb is removed, the rest of the bulbs remain lit up. What type of circuit is this?

Accepted Answer

parallel

Answer

ground

Answer

series

Answer

short

Question 55

The structure of the equation of Coulomb's law is the most similar to the structure of which of the following equations?

Accepted Answer

Newton's law of universal gravitation

Answer

conservation of momentum

Answer

conservation of energy

Answer

Ohm's law

Question 56

Which of the following describes how the magnetic molecules of unpaired electrons in a ferromagnetic material align themselves when the material is placed in and then removed from an external magnetic field?

Accepted Answer

while in the field: align with the external field; when removed from the field: remain aligned

Answer

while in the field: align with the external field; when removed from the field: no longer aligned

Answer

while in the field: align opposite to the external field; when removed from the field: remain aligned

Answer

while in the field: align opposite the external field; when removed from the field: no longer aligned

Question 57

Maya needs to build a device that can temporarily hold metal objects in place during her school project. She wants to use a magnet to do this. Which magnet type would be the best choice and why?

Accepted Answer

An electromagnet because its magnetic strength can be adjusted by changing the electric current and it can be turned on and off for temporary use.

Answer

A temporary magnet because it loses magnetism when removed from the magnetic field, allowing for easy control during temporary applications.

Answer

A ceramic magnet because it is the strongest type of magnet and can hold a metal object firmly when needed and be removed when not needed.

Answer

A permanent magnet because it has a constant magnetic field and can be used repeatedly without a power source.

Electricity and Magnetism definitions

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