Non Contact Forces Vocab Concepts 1-4

Question 1

Electrons

Answer 1

have a negative charge. They are small enough to escape the nucleus of the atom, and are the reason we have electricity. This is also the reason we get shocked by electrons moving from object to object

Question 2

Proton

Answer 2

positive charge. They are too big to escape the nucleus. Their charge is off-set by electrons.

Question 3

Neutron

Answer 3

negative or no charge. They prevent the electrons and protons from touching each other.

Question 4

Force

Answer 4

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

Question 5

Force Field

Answer 5

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

Question 6

Net Force

Answer 6

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

Question 7

Non Contact Force

Answer 7

Forces that act between two objects that are NOT physically touching each other.

Question 8

Atom

Answer 8

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 9

Electron

Answer 9

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 10

Neutrons

Answer 10

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 11

Protons

Answer 11

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

Question 12

Static Electricity

Answer 12

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

Question 13

Magnetic Domain

Answer 13

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

Question 14

Permanent Magnet

Answer 14

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

Question 15

Pole

Answer 15

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

Question 16

Insulator

Answer 16

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

Question 17

Conductor

Answer 17

a substance, body, or device that readily conducts heat, electricity, sound, etc. (Copper)

Question 18

Electric Motor

Answer 18

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

Question 19

Electromagnet

Answer 19

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 20

Generator

Answer 20

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 21

Solenoid

Answer 21

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

Question 22

Transformer

Answer 22

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