Science Unit three vocabulary

Question 1

Has domains. Creates a field. has a north and south pole. Can attract repel or have no effect on other materials. Attracts ferromagnetic materials.

Answer 1

Magnet

Question 2

Parts of a magnet. North and South. Strongest at this part but weakest at center.

Answer 2

Magnetic poles

Question 3

Ability of a material to respond to and exert a ____

Answer 3

magnetic force

Question 4

field created by an electromagnet.

Answer 4

electromagnetic field

Question 5

Negative node of a battery

Answer 5

Anode

Question 6

positive part of a battery

Answer 6

Cathode

Question 7

A common type of rock material or iron ore that is naturally magnetic.

Answer 7

Magnetite

Question 8

the shape of a magnetic field. Used to show the strength and the placement of the magnetic field.

Answer 8

Magnetic Field Lines

Question 9

Only Iron, Nickel, and cobalt have these. They are groups of atoms that act like magnets. Poles of atoms are aligned in the same direction. region in which the magnetic fields of atoms are grouped together and aligned.

Answer 9

Domains

Question 10

consists of a solenoid (coil of wire) wrapped around a bar of iron or other ferromagnetic material.

Answer 10

electromagnet

Question 11

the simplest form. It includes a battery and a wire. No added components to reduce the flow of electrons.

Answer 11

short circuit

Question 12

Caused by electrostatic difference in the circuit. Difference between charge of negative and positive nodes. Speed of flow of electrons.

Answer 12

Voltage

Question 13

The measure of speed of flow of electrons or voltage.

Answer 13

volts

Question 14

consisting of a solenoid around a ferromagnetic object. Has domains aligned for a period of time, but not permanently.

Answer 14

Temporary Magnet

Question 15

Multiple theories. The geographic north is the magnetic south. The geographic South is the magnetic north.extends from Earth’s interior out into space. Controls radiation from the sun.

Answer 15

Earth’s Magnetic field

Question 16

A circuit that doesn’t work and is missing something.

Answer 16

Open Circuit

Question 17

A complete circuit with all of its components and it is working.

Answer 17

Closed Circuit

Question 18

the interaction of electric currents or fields and magnetic fields.

Answer 18

Electromagnetism

Question 19

type of electromagnet formed by a helical coil of wire whose length is substantially greater than its diameter, which generates a controlled magnetic field. The coil can produce a uniform magnetic field in a volume of space when an electric current is passed through it. Converts Electrical into magnetic energy

Answer 19

solenoid

Question 20

an electrical machine that converts electrical energy into mechanical energy. operate through the interaction between the motor’s magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor’s shaft
device that transforms electrical energy into mechanical energy.
Uses electromagnetism to do this!
When an electric current travels through the wires, an electromagnet is created.
This electromagnet will either have a North or South pole.
It then interacts (attracts/repels) with the permanent magnets on the outside, which causes the axle to rotate.

Answer 20

electric motor

Question 21

is the winding of an electric machine which carries alternating current. converts from electrical energy into mechanical energy

Answer 21

armature

Question 22

number or amount of electrons flowing through a circuit.
measured in amps or amperes can be changed by adding or removing batteries uses galvanometer to measure this

Answer 22

current

Question 23

Amperes. used to measure current

Answer 23

amps

Question 24

No source of electricity. process of converting mechanical energy into electrical energy. By moving magnet near wire to create current.

Answer 24

electromagnetic induction

Question 25

any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers

Answer 25

electric generator

Question 26

multiple components to a circuit

Answer 26

series circuit

Question 27

amount of electrical energy sen through a circuit per unit time.

Answer 27

power

Question 28

the measure of power. currentXvoltage=power

Answer 28

watts