Physics - Chap 10

Question 1

Charging by contact

Answer 1

Charging process in which electrons transfer from the charged object to the neutral object that it touches

Question 2

Conduction

Answer 2

Movement or transmission of electric charges through a substance

Question 3

Induction

Answer 3

Movement of electrons within a substance, caused by a nearby charged object, without direct contact between the substance & object

Question 4

Conductivity

Answer 4

Ability of materials to allow electrons to move freely in them

Question 5

Conductor

Answer 5

Material that allows objects to change positions

Question 6

Electric charge

Answer 6

Charged particles that exert an electric force on each other

Question 7

Electrical discharge

Answer 7

Rapid transfer of electric charges

Question 8

Electron affinity

Answer 8

Tendency of a substance to hold on to electrons

Question 9

Electroscope

Answer 9

Instrument that can detect static charge

Question 10

Electrostatics

Answer 10

Study of static electric charges

Question 11

Electron

Answer 11

Negatively charged particles in an atom; outside nucleus

Question 12

Proton

Answer 12

Positively charged particles in an atom; inside nucleus

Question 13

Neutron

Answer 13

Particle that has no electric charge, therefore neutral; inside nucleus

Question 14

Nucleus

Answer 14

Centre of the atom; contains protons & neutrons

Question 15

Friction

Answer 15

Force resisting the relative notion of 2 surfaces in contact

Question 16

Grounding

Answer 16

Process of connecting a charged object to earths surface

Question 17

Insulator

Answer 17

Solid, liquid, or gas that resists or blocks the movement of electrons

Question 18

Law of attraction

Answer 18

Particles with opposite charges attract each other

Question 19

Law of repulsion

Answer 19

Particles with like charges repel each other

Question 20

Lightning rod

Answer 20

Metal pole with a wire attached to it that runs down to the ground with the purpose of allowing electrons that build up on a building to spread out into the air

Question 21

Static charge/static electricity

Answer 21

Electric charge that builds up on the surface of an object