Electric Energy - Different Types Of Electric Energy - Static Electricity Flashcards Preview

Science - Energy and Change - 2017 > Electric Energy - Different Types Of Electric Energy - Static Electricity > Flashcards

Flashcards in Electric Energy - Different Types Of Electric Energy - Static Electricity Deck (10):
1

Give a short description of what static electricity is (2)

When certain materials are rubbed together, electric charges often produce on the surface. Then, they attract each other or spark to jump from one to another...

2

What does it mean if a object is neutral? (1)

The object has equal protons and electrons.

3

What happens when 2 neutral objects are rubbed together? (2)

The electrons transfers from one object to the other and the opposite charged objects attract each other .

4

When is the object negatively charged? (1)

If it has more electrons than protons

5

When is an object positively charged? (1)

When it has more protons than electrons

6

Name one form of static electricity in nature (1)

Lighting

7

When we rub a balloon against our hair, which one looses electrons? (1)

our hair

8

True or false:
When we rub a balloon on our hair, al hairs stand up together

False

9

Explain electric discharge (3)

There is often a spark between two objects. This went two objects neutralise their charges again. When electrons suddenly flow across an empty space with no conduction matter, it sparks.

10

Explain how lightning strikes (4)

The particles in the cloud 'rub against' each other. The electrons transfer through dust and air particles. The strong source goes to the weak source. A lightning bolt flashes as the sources neutralise again.