SP7a Charges and Static Electricity

Question 1

What does positively charged mean?

Answer 1

there are more protons than electrons.

Question 2

What does negatively charged mean?

Answer 2

there are more elctrons than protons.

Question 3

What does neutral mean?

Answer 3

there is an equal number of protons and electrons.

Question 4

How does rubbing an insulator transfer electrons? (what happens to a ballons charge when rubbed on something)

Answer 4

A balloon may become negatively charged due to electrons being added meaning there are more negative charges than positive ones.
A balloon may become positively charges due to electrons being removed meaning there are more positive charges than negative ones.

Question 5

Recall the charged particles found in an atom and their charges.

Answer 5

.proton - positive
.neutron - neutral
.electron - negative

Question 6

Explain why, when certain materials are rubbed together they end up with opposite charges?

Answer 6

electrons are being transferred so one material will become negatively charged as it gains electrons and the other will become positively charged as it loses electrons.

Question 7

What does repullsion occur between?

Answer 7

two positive/two negative charges

Question 8

What does attraction occur between?

Answer 8

opposite charges

Question 9

What can charged objects affect? (except for other charged objects)

Answer 9

the distribution of charge on an uncharged object.