Charging Flashcards
(30 cards)
Between what particles would an electric force of repulsion occur?
Proton to proton because like charges repel
What kind of charging will leave the two items with an opposite charge?
Friction
The smallest positive charged particle is?
Proton
What unit is power measured in?
Watts
What unit is charge measured in?
Coulombs
Amperes is used to measure…?
Current
Circuit breakers are switches that…?
Turn off if too much current flows through the circuit breaker
Ohms is the unit for..?
Resistance
What is currents symbol?
I
Induction is the charging method that causes you to receive a shock after walking across a carpet.. True or false?
False! Friction is the charging method!
If an object is grounded it will gain electrons… True or false?
False it will lose electrons
A conductor easily carries protons from one place to another.. True or false?
False! A conductor easily carries ELECTRONS
Three ways of charging and object
Induction
Friction
Contact
What factors affect the amount of static charge that is transferred when you rub two different substances together?
Moisture In the air
The materials you rub together
The differences between insulators and conductors?
An electrical insulator is a substance in which electrons cannot move freely from one atom to another
An conductor is a substance in which electrons CAN move freely from one atom to another
How does a lighting rod mounted on the roof protect your house?
It grounds the house
Ways to discharge a charged object.
Leave it for long enough
Ground it
Shine light on it
The difference between static electricity and current electricity?
Static electricity is generated by friction, or sudden contact – for instance, rubbing two materials against each other
Current electricity, on the other hand, is a phenomenon of moving electrons in a particular path, or direction, such as a stream of them flowing through conducting materials.
The difference between a primary cell and a secondary cell?
A primary cell can only last so long…
A secondary cell can be recharged to be used over and over again
What is a short circuit? Why is it dangerous?
A short circuit in an electrical circuit that allows a current along a different path from the one intended A short circuit is dangerous because the magnitude of electric current can be very large and the release of energy very dramatic
Why are houses wired in parallel?
So if one light burns out all the lights in the house wouldn’t go out as well! Also so it doesn’t take forever to find which light went out
List one advantage and one disadvantage of circuit breakers over fuses.
Advantage: when a fuse goes it’s done but when a circuit breaker goes all you have to do is flip it.
Disadvantage: fuses are cheaper
Why is it dangerous to help someone experiencing electric shock?
Because the shock could travel through their body to yours!
Contact is a way of charging objects?
That gives the same charge as the original charged object
