Static Electricity Flashcards
Isotope meaning?
version of an element with the same number of protons but different number of neutrons
Static electricity is when…
an object becomes charged, usually by friction
What force makes an object charged?
Friction
Which subatomic particle is transferred when an object becomes charged?
Electrons
Objects that gain electrons become…
negatively charged
Objects that lose electrons become…
postively charged
Electric fields- what do they describe?
The lines of force surrounding a charged particle
Electric fields show the direction in which…
a positive test charge would move
Like charges ++…
Repel
Unlike charges -+…
attract
Charged objects attract
Uncharged objects
Static and safety? Describe about refuelling a vehicle
- Refuellling a car can be dangerous
- Fuel flowing through pipe can cause static buildup
- If it discharges via a spark it can make a fire or explosion
- Connect a wire from pump to vehicle to stop this
How to stop static buildup?
Connect a wire from pump to vehicle
What causes static buildup?
The fuel flowing through a pipe
What can cause a spark or explosion when refuelling a car?
If the static buildup discharges via a spark
Photocopier 1.
Drum -ve with static electricity
Photocopier 2.
Light reflects off the paper on to the drum
Photocopier 3.
Black toner sticks to the drum where it’s negatively charged
Photocopier 4.
Black toner TRANSFERRED to a new paper to make the copy
Photocopier 5.
Heat sticks the toner to paper permanently
When the negative balloon is close to the charged wall what happens
It attracts the protons and repels the electronsw
