Electricity Test Flashcards
What is resistance/ohm
How hard it is for an electron to travel through something
What is a parallel circuit
It’s a circuit with more than one path way for electrons to travel through
What is a series circuit
A circuit with only one pathway for electrons to pass through
Parts of the dry battery
Positive/negative terminal, electrolyte/ moist paste, carbon rod.
Unit for measuring current
Amp/ampere
Unit of measuring large amount of energy
Kilowatt hour
How does something become staticky charged
Friction
What is grounding
When you stick an object in the ground and allow electrons to flow through
How is static charge different from current electricity
Static charge builds up and the current electricity goes through
When you are measuring current what are you actually measuring
The amount of electrons running through a wire each second
What is ohms law
V=I x R. I = V / R. R = V / I,
What is the unit for measuring small amounts of energy
Joule
What does voltage mean
Amount of energy carries per electron
How does something become positively charged
It loses electrons
How does something become negatively charged
Gains electrons
What two things effect how strongly two negative/positive charges repel each other
How strongly charges they are and how close together they are
Why do neutral objects attract both negative and positive
It temporarily because oppositely charges then the charges object
How should a voltmeter be connected into a circuit in order to measure the voltage used by the light
Wire before and after the light bulb
What is the unit for power
Watt
What does a bolt meter measure
Different in voltage between two place in a circuit
Why is the current the same In all parts of a series circuit
Because there’s only one pathway for the electrons to travel through
Why can a current be different in different Parts of a parallel circuit
It has multiple paths
In a parallel circuit how does the current coming out of the battery compare to the current travelling through the different pathway
There the same
Why do bugger wire have less resistance
Because there’s more space for the electrons
