Static Electrictricty Flashcards
(12 cards)
What is static electricity?
Electricity that doesn’t flow
What is an insulator?
A material that does not allow electricity to flow
What is the term for the movement of electrons?
Electric current
What happens when static electricity builds up?
It creates a negative charge
What is a perspex rod used for in static electricity demonstrations?
To demonstrate attraction and repulsion
What does a van der Graaff generator consist of?
Metal sphere, rubber belt, motor
How does friction contribute to static electricity?
It causes electrons to move between materials
What charge does a Perspex rod acquire when rubbed with cloth?
Positively charged
What charge does the polythene cloth acquire when rubbed with a rod?
Negatively charged
Fill in the blank: When the cloth rubs the rod, there is a _______.
frictional force
True or False: Both the rod and the cloth are conductors.
False
What role does the rubber belt play in a van der Graaff generator?
It generates static electricity through friction
