What is friction?
When 2 neutral materials (both having equal numbers protons and electrons) some of the electrons move from one material to the other
What is the result of friction?
- First material - fewer electrons than protons - has a positive charge
- Second - more electrons than protons - negative energy
What certain materials causes electrons to be transferred between the atoms of the material?
- Plastic
- Perspex
- Glass
- Nylon
- Wool
- Silk
What type of energy charges do you get?
- Positive charge - A shortage of electrons
- Negative charges - An excess of electrons
What generates electricity?
Friction is called static electricity because electricity does not move
What do like and unlike charges do?
Like - repel
Unlike - attract
What happens when a negatively charge object is held near a neutral object?
Electrons in neutral object move to the other side, it has a positive and negative side
Why must you be careful of filling container with petrol?
Friction can cause positive charges on plastic and negative on petrol and can cause a spark
