Force Fields

Question 1

FORCE

Answer 1

Any of the various factors that cause a body to change its speed, direction or shape

Question 2

FORCE FIELD

Answer 2

A region or space in which a given effect (such as magnetism) exists

Question 3

NET FORCE

Answer 3

A single force whose external effects on a rigid body are the same effects of several actual forces acting on the body

Question 4

NON CONTACT FORCE

Answer 4

Froces that act between two objects that are not physically touching each other

Question 5

ATOM

Answer 5

The smallest unit of a chemical element. An atom consists of a dense central nucleus composed of protons and neutrons, surrounded by a cloud of rapidly orbiting electrons.

Question 6

ELECTRON

Answer 6

A stable subatomic particle with a negative electric charge that is opposite to that of a proton but is equal in magnitude. (This is what gets transferred in electricity, and static electricity)

Question 7

NEUTRONS

Answer 7

An electrically neutral or no charge subatomic particle that has a mass slightly greater than that of a proton and is part of every atomic nucleus

Question 8

PROTONS

Answer 8

A stable subatomic particle that is a part of the nucleus of an atom and and a positive electric charge. Its charge is opposite to that of an electron but is equal in magnitude. The amount of protons depends on the individual element.

Question 9

STATIC ELECTRICITY

Answer 9

Electric charge that accumulates on an object rather than flowing through it as a current

Question 10

MAGNETIC DOMAIN

Answer 10

A region composed of a group of atoms whose magnetic fields are aligned in the same direction.

Question 11

PERMANENT MAGNET

Answer 11

A magnet that retains its magnetism after removal of the magnetizing force.

Question 12

POLE

Answer 12

EIther of two areas of a magnet where the magnetic field is the strongest. The North and South Poles are the strongest.

Question 13

INSULATOR

Answer 13

a material of such low conductivity that the flow of current through it is negligible (usually rubber)

Question 14

CONDUCTOR

Answer 14

a substance, body, or device that really conducts heat, electricity, sound, etc. (copper)

Question 15

ELECTRIC MOTOR

Answer 15

An electric monitor is a device for converting electrical energy into mechanical energy in the form of rotation.

Question 16

ELECTROMAGNET

Answer 16

A device that consists of a coil of insulated wire wrapped around an iron core that becomes magnetized when an electric current flows through the wires

Question 17

GENERATOR

Answer 17

A device that converts motion (kinetic energy) into electrical energy. A generator contains a coil of wire that rotates within a magnetic field, producing an electric current in the wire.

Question 18

SOLENOID

Answer 18

A coil of wire that acts as a magnet when an electrical current passes through it.

Question 19

TRANSFORMER

Answer 19

A device used to change the voltage of an alternating current in one circuit (the primary circuit) to a voltage in a second circuit (the secondary circuit). A transformer consists of a frame of an easily magnetized material with two coils of wire around it. Each coil is connected to one of the two circuits.