static electricity

Question 1

the basic form of an atom are made up of 4 parts. what are these parts

Answer 1

protons
neutrons
electrons

Question 2

what are conductors made of and what are 2 examples

Answer 2

metal - copper and aluminum

Question 3

why are these conductors

Answer 3

• these types of electrons loosely

Question 4

what are insulators made of and two examples

Answer 4

• things that aren’t metal
• rubber, plastic
• these materials hold onto there electrons tightly

Question 5

if two object attracted. what does the mean?

Answer 5

both are charged and the charges are different
one is positive and one is negative

Question 6

if tow object repel what does the mean

Answer 6

both are charged but the charge is the same
either both positive or both negative

Question 7

if two object do nothing what does this mean

Answer 7

both are neutral

Question 8

what is grounding

Answer 8

a way to neutralize a charge connect the object to the earth using a conductor to carry away excess charge.

Question 9

what is the law of attraction

Answer 9

unlike charge attract
like charges repel
neutral and neutral do nothing

Question 10

what are the three. ways to cause a charge in balance

Answer 10

charging by friction
charging by contact
charging by induction

Question 11

what is charging by friction

Answer 11

contact between two neutral objects
objects that are rubbed together causing electron to be transferred

Question 12

what is charging by contact

Answer 12

contact between a charged and a neutral object
electrons are transferred

Question 13

what is charging by induction

Answer 13

by bringing a charged object near a neutral object
electrons are forced to move but not leave the object
creates a temporary charge

Question 14

utline the steps that take place to produce lightning in a cloud.

Answer 14

i) updrafts and down drafts (wind currents) cause dust and ice crystals to rub and charge
by friction
ii) these charged particles collect in the top (usually +) and bottom (usually -) of the cloud
iii) the negative charge at the base of the cloud causes the ground to become + by induction
(electrons in the ground are repelled by the negative part of the cloud
iv) air molecules are pulled apart (ionized) by the opposite charges in the cloud and the
ground
v) these channels of ionized air allow electrons to flow from the cloud to the ground,
causing lightning to occur
This process starts at the ground level, so the flash of lightning progresses upwards

Question 15

what are 3 components that are needed in order for lightening to form

Answer 15

heat
moisture
ice crystals