Static Electricity Flashcards
0
Q
If an object gains electrons it becomes…
A
Negatively charged
1
Q
What causes static electricity?
A
A build up of charge.
2
Q
If an object loses electrons it becomes…
A
Positively charged
3
Q
In what ways can an object become static?
A
- Friction can physically move electrons from one object to another
- Induction is where the electrons are pushed or pulled away by an already charged object
4
Q
Identically charged objects….. each other
A
Repel
5
Q
Oppositely charged objects……. each other
A
Attract
6
Q
The charge gained by one object is always…
A
Equal in size, but opposite in sign to the charge lost by another
7
Q
When are sparks caused?
A
When electrons move quickly to another place
8
Q
What are some dangers of static electricity?
A
- electric shocks to humans
- explosions
- fires
- damaging equipment
- building or statue damage
9
Q
What are some uses of static electricity?
A
- photocopiers
- printers
- defibrillators
- electrostatic dust precipitators
- paint spraying
