Physical Science Chapter 6

Front 1

Electrostatic charge results from?

Back 1

Transfer or redistribution of electrons

Front 2

The unit of electric charge is the?

Back 2

Coulomb

Front 3

An electric field describes the condition of space around?

Back 3

A charged particle

Front 4

A material that has electrons that are free to move throughout the material is a(n)

Back 4

Electric conductor

Front 5

What's an example of an electrical insulator is?

Back 5

Glass

Front 6

The electrical potential difference between two points in a circuit is measured in units of?

Back 6

Volt

Front 7

The rate at which an electric current flows through a circuit is measured in units of ?

Back 7

Amp

Front 8

The law that predicts the behavior of electrostatic forces acting through space is

Back 8

Coulombs law

Front 9

what type of electric current is produced by fuel cells and solar cells

Back 9

Dc

Front 10

the electrical resistance of a conductor is measured in units of?

Back 10

Ohm

Front 11

According to ohms law what must be the greater to maintain the same current in a conductor with more resistance

Back 11

Voltage

Front 12

A kilowatt per hour is a unit of

Back 12

Work

Front 13

If you multiply volts by amps the answer will be in units of

Back 13

Power

Front 14

Units of joules per second are a measure called a

Back 14

Watt

Front 15

A lodestone is a natural magnet that attracts

Back 15

Iron,cobalt,nickel

Front 16

The North Pole of a suspended or floating bar magnet currently. Directly towards Earths

Back 16

North Magnetic pole

Front 17

A current carrying wire always has

Back 17

A magnetic field with closed concentric field lines around the length of the wire

Front 18

Magnetism is produced by

Back 18

Moving charges

Front 19

Earths magnetic field

Back 19

Has undergone many reversals in polarity

Front 20

The strength of magnetic field around a current-carrying wire varies directly with the

Back 20

Amperage of the current

Front 21

Reverse the direction of a current in a wire and the magnetic field around a wire will

Back 21

Have a reversed North Pole direction

Front 22

The operation of which of the following depends on the interaction between the two magnetic fields

Back 22

Car stereo speakers, Telephone, Relay circuit

Front 23

An electric meter measures the

Back 23

Strength of a magnetic feild

Front 24

When I lubb of wire cut across magnetic field lines or magnetic field lines move across a loop of wire

Back 24

Electrons are pushed toward one end of the loop

Front 25

A step up transformer steps up the

Back 25

Voltage

Front 26

Electromagnetic induction occurs when recording of wire cut across magnetic field lines which one of the following increases the voltage produced

Back 26

Increased strength of magnetic field

Front 27

Electric Power Company step up the voters are generated power for transmission across the country because higher voltage

Back 27

Reduces the current which lowers the energy lost to resistance

Front 28

A solar cell

Back 28

Produces electricity directly

Front 29

Which of the following is most likely to acquire an electrostatic charge

Back 29

Electrical nonconductor

Front 30

Which of the following units are measures of rates

Back 30

Amp and watt

Front 31

You are using which description of a current if you consider a current to be positive charges that flow from a positive to the negative terminal of a battery

Back 31

Conventional current

Front 32

In an electric current the electrons are moving

Back 32

At a very slow rate

Front 33

In which of the following Curren is there no electron movement from one end of the conducting wire to the other end

Back 33

Alternative current

Front 34

If you multiply amps. Volts the answer will be in units of

Back 34

Power

Front 35

A permanent magnet has magnetic properties because

Back 35

the magnetic domains are aligned

Front 36

a current carrying wire has a magnetic field around it because

Back 36

A moving charge produces a magnetic field of its own

Front 37

When an object acquires a negative charge it actually

Back 37

Gains mass

Front 38

A positive and negative charge are initially 2 centimeters apart what happened to the force on each as they are moved closer and closer together? The force

Back 38

Increases while moving

Front 39

To be operational a complete electric circuit must contain a source of energy a device that does work and

Back 39

A conductor from the source to the working device and another conductor back to the source

Front 40

Which variable is inversely proportional to the resistance

Back 40

Cross-sectional area of conductor

Front 41

Which of the following is not considered to have strong magnetic properties

Back 41

Silver

Front 42

A piece of iron can be magnetized or unmagnetized this is explained by the idea that

Back 42

Atoms of iron are grouped into tiny magnetic domains that may orient themselves in a particular direction or in a random of direction

Front 43

Are magnetic field is believed to originate

Back 43

With electric currents that are somehow generated in Earth's core

Front 44

This speaker in a stereo system works by the action of

Back 44

And electro-magnetic pushing and pulling on a permanent magnet

Front 45

Electromagnetic induction takes place because

Back 45

Electrons have their own magnetic field which interacts with an externally applied magnetic field

Front 46

The current in the secondary cool of a transformer is produced by

Back 46

Varying magnetic field

Front 47

An electromagnetic uses

Back 47

An electric current to produce a magnetic field

Front 48

A transformer

Back 48

Changes the voltage of an alternating current

Front 49

A parallel circuit has

Back 49

Separate pathways for the current to flow through

Front 50

In which type of circuit would you expect a reduction of the available voltage as more or more resistance are added to the circuit

Back 50

Series circuit

Front 51

In which type of circuit would you expect the same voltage with an increase current as more and more resistance are added to the circuit

Back 51

Parallel circuit