Electric fields and static electricity

Question 1

What is static electricity

Answer 1

Charges that are not free to move (e.g. insulating materials)
This causes them to build up in one place and often ends in a spark or shock

Question 2

How does static energy build up

Answer 2

When insulating materials are rubbed together the negatively charged electrons will be scraped off and transferred to the other material which leaves one positively charged and one negatively charged

Question 3

Do the positively charges move during static electricity

Answer 3

No
Only the electrons move

Question 4

What causes sparks

Answer 4

A bigger change in potential difference between the object and the earth (0V) the electrons can jump across the gap

Question 5

What is the force when to opposite charges attract

Answer 5

Electrostatic attraction/repulsion

Question 6

What is electric fields

Answer 6

A field around any electrically charged object

Question 7

What happens when you get closer to a electric field

Answer 7

Gets stronger

Question 8

How to draw electric fields

Answer 8

Go from positive to negative
Always at right angles to the surface
The closer the lines the stronger the field is