Methods of Charging and Types of Electric Charging
Insulators, Conductors, and Electric Force
Static Electricity in our everyday lives, and introduction to Circuits
Electric Current and Electric Potential Difference
Resistors and Ohm's Law, and Resistors in series and parallel circuits.
100
This method of charging causes electric charges to transfer from one object to another when two objects are rubbed together.
What is charging by friction?
100
A substance which does not allow electrons to flow freely from one atom to another. What are 2 examples of these substances?
What is an insulator? Examples can include any non-metals or semi-conductors. LIKE RUBBERS.
100
Three examples of other other forms of energy produced from electrical energy.
What is light, heat, mechanical, and sound energy? This is what the load does in a circuit. It's a device which converts electrical energy into another form of energy.
100
The explanation of the formula for calculating current. (explain what the letters mean)
What is I equals to Q over T? I = (the current in Amps) Q = (quantity of electric charges in Coulombs) T = (Time in seconds)
100
This is the symbol for the measurement of Ohms.
What is the OMEGA symbol?
200
A type of charge which is stationed on an object until it either gets discharged or has a path to travel through (conductive material)
What is a static charge?
200
The simplest way to discharge an object of its excess electrons.
What is grounding? This makes the object neutral.
200
The SI unit for measuring energy
What is a Joule (J)?
200
The three types of currents
What are Conventional currents, Direct currents (DC), and alternating currents (AC)?
200
Define the resistance of a conductor, give its name, and gimme the equation written for it.
What is the ratio of voltage in a conductor to the current flowing through the conductor, OHM'S LAW, and R=V/I or V=IxR.
300
Explain the Law of Electric Charges (Not a jeopardy-like question but this is still important yall)
What is the law which states that Like charges repel and unlike charges attract.
300
This is what Michael Faraday discovered when he used his first Faraday cage.
What is the discovery that when electricity strikes the outside of some sort of Faraday cage, no excess charges were in the inside of the cage?
300
In science, what is the difference between an electric charge and a battery?
An electric charge refers to one electric cell, and a battery refers to a combo of 2+ electric cells.
300
What is the difference between Series circuits and Parallel circuits?
In a series circuit, the current goes through each device in a sequence. The electrons only have one path to flow through. In a parallel circuit, the current is split up and some of the current goes through each device. The electrons have a choice of paths to flow through.
300
A turtle sized light bulb is connected to a 1234567890 volt battery. If the light bulb has a current of one hundred amperes, this is the resistance of the light bulb filament.
What is 12345.6789 (insert omega sign here) ohms.
400
The type of particle which is mobile, negatively charged, and has a very small mass
What is an electron?
400
List three ideal characteristics of a lightning rod.
(any of these work) What is being placed at a high point, being made of a conductive material, having a grounding path, and being tall and pointy?
400
What is an electric cell? What are the differences between the two types of electric cells?
An electric cell is a device which converts chemical energy into electrical energy. Primary cells can't be recharged. The chemical reactions are irreversible. Secondary cells can be recharged. The chemical reactions can be reversed.
400
The formula that converts coulombs into the number of electrons.
What is C (6.25 x 1018)
400
This is the list of all resistor colour codes from 0 to 9.
What is black, brown, red, orange, yellow, green, blue, violet, grey, white.
500
An elaborated explanation of the two methods of charging by contact and indirect contact.
What is charging by induction?
This method induces the particles in an object to re-arrange their positions so that the protons and electrons are polarized (one side of the object is -ve one side +ve).
What is charging by conduction? This method involves contact with the object. This method involves the transferring of electrons.
500
Define Electric Force, and what it can do to static charges.
What is the force that exists between static charges? electric force can either pull the static charges together (force of attraction) or push the static charges apart (force of repulsion).
500
Explain how lightning is formed
Lightning is formed when evaporating water droplets from oceans rub against the falling water crystals in the clouds, making static electrical charges in the clouds. When the negative charge at the bottom of the cloud gets strong enough, the cloud lets out energy we see as lightning
500
Why are voltmeters placed in parallel with the load or energy source, whereas ammeters are placed in series in a circuit?
In order to measure voltage using a voltmeter, you need to provide it 2 different points. Thus, the voltmeter calculates the difference in electrical potential between those 2 points.
500
If four identical lightblubs ( not lightbulbs) are connected in a series with 5 ohms of resistance each and four identical cells each have a voltage of 3 volts, what is the total current in amperes?