2: Energy
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What is current measured in
Amperes (amps)
What is voltage
The difference in potential energy between two points in a circuit
What is current
How many electrons are in the circuit
What is voltage measured in
Volts.. Go figure
What are ohms
A unit of electrical resistance
What is the formula relating amps, volts and ohms
Amps * Volts = Ohms
Does an ammeter go in series or parallel
Series
Does a voltmeter go in series or parallel and why
Parallel, as if it was in series, it could not measure the difference in potential energy between the input and output
Why don’t you put an ammeter in parallel
Otherwise the electricity will take the path of least resistance ( Through the ammeter) and short circuit the ammeter
Define a short circuit
A closed circuit which has little or no resistance
Can you short circuit a voltmeter
With a high enough voltage, yes you can
True or False: The device that measures electrical resistance is called an Ohmmeter
True, but lowkey you can use the formula A*V = Ohms(should be a Greek omega), to find it out with an ammeter and voltmeter instead
What are some risks of having a lightbulb and a battery attached with the battery on a high voltage
The lightbulb can break
What are the theee things to keep in mind when drawing out an electrical circuit
• Use a ruler —> Straight lines are a must • Draw it in pencil —> it is a scientific diagram after all • Simplify as much as possible —> it’s easier for everyone
What is wrong with this query Which is better: solar power or wind power
It needs more specificity (hard to pronounce, it means you should make the question about something scientifically measurable
What are the three types of heat transfer
Conduction, convection and radiation
What is conduction
Thermal energy is transferred by the vibration of particles; heat transfer in which the movement of particles spread thermal energy
What is convection
Heat transfer via density; in which hotter particles rise because of density difference, and the colder particles get heated as they sink (convection currents
What is a big example of convection currents
Tectonic Plates moving from convection currents
What is radiation
Heat transfer in which EMRs are emitted by electrons jumping shells when they get excited and fall back to ground state
What are some types of potential energy
Elastic Potential Enegy, Gravitational Potential Energy, Chemical Potential Energy, Potential Energy, Electrical Potential Energy
What are some types of kinetic energy
Kinetic Energy, Thermal Energy, Electrical Energy, Sound Energy, Light Energy
What is the difference between electrical and electrical potential energy
Electrical energy is the energy when the electrons are moving whereas electrical potential energy is when the electrons are stationary in the circuit
What is the kinetic energy formula
KE = 1/2mv^2