Physics 2b - Static Electrcity

Question 1

TRUE OR FALSE

When an Acetate rod is rubbed with a duster, the rod is left with a positive charge

Answer 1

TRUE

The negative electrons are taken off the rod, leaving it with an overall positive charge

Question 2

The way the __________ are transferred depends on the __________.

Answer 2

The way the ELECTRONS are transferred depends on the MATERIALS.

Question 3

With a polythene rod, electrons are transferred from the _________ to the _______

Answer 3

With a polythene rod, electrons are transferred from the DUSTER to the ROD.

Question 4

With a acetate rod, electrons are from the _________ to the _______

Answer 4

With a acetate rod, electrons are from the ROD to the DUSTER.

Question 5

TRUE or FALSE

Only the electrons (negative charges) move, never the positive charges

Answer 5

TRUE

Question 6

A positive static charge is caused by…..

Answer 6

Electrons moving away

Question 7

When two electrically charged objects are brought close together what happens?

Answer 7

They exert a force on one another.

Question 8

Two things with an _________ electric charge are attracted to each other.

Answer 8

Two things with an OPPOSITE electric charge are attracted to each other.

Question 9

Two things with the same electric charge will _________ each other.

Answer 9

Two things with the same electric charge will REPEL each other.

Question 10

TRUE OR FALSE

Charges cannot move easily through conductors.

Answer 10

FALSE

Electric charges can move easily through most conductors. Metals are the best known conductors.

Question 11

What happens when certain insulating materials are rubbed together?

Answer 11

Negatively charged electrons are scraped off one and dumped on the other