q3, week 5

is the flow of electrons through a complete circuit of conductors. it is used to power everything from our lights to our trains.

Everything we see is made up if tiny particle called ?

it is made of even smaller parts which are called protons, electrons, and neutrons or the sub-atomic particles. it usually has the same number of protons (+) and electrons (-).

is the movement of electrons through a wire. it is measured in amperes (amps) and refers to the number of charges that move through the wire per second.

when current flows, _______ ____ is done and energy transferred. the amount of charge passing a point in the circuit can be calculated using the equation: ???

are negatively charged particles and they transfer energy through wires as electricity.

Is a property of a body which experiences a force in an electric field. It is measured in coulombs (C).

True or False: electrons are sosall and one electron will not have much of an effect anywhere, it is more useful to refer to large groups of electrons.

1 A is equivalent to ?? electrons per second or 1vC/s

True or False: In order for the current to flow, the circuit must be opened; in other words, there must be an uninterrupted path from the power source, through the circuit, then back to the power source.

if we disconnect the battery, the light goes off because the current has nowhere to flow. this creates what wecall an ? It is like and open circle because there is a beaocin tge line of flow.

It is like a closed circle or a completed circle. Current San only travel through here.

All circuits need to have three basic elements. These elements are a ______ ______, _________ ____ and a ____.

The Voltage sourse, such as a _______, is needed in order to cause the current to flow through the circuit.

there needs to be a conductive path that provides a _____ for the electricity to flow.

a proper circuit needs a load that consumes the _____

is the complete path of electrical energy

in the circuit, we have created here with the light bulb, wire, and battery. the battery provides the _______ and the light bulb gives us __________, by slowing down the flow of charge and changing it into light. the current flows through the battery, the light bulb and the wires.

They circle the nucleus in fixed orbits, like how satellites orbit the earth. Has a natural orbit that it occupies, but if you energize an atom, you cancmove its electrons to higher orbitals.

It is produced whenever am electron is higher-than-normal orbit falls back to its normal orbit. it is also a packet of energy with very specific characteristics. it has a frequency, or color, that exactly arches the distance the electron falls.

electric charge moves from the positive (surplus) side of the battery to the negative (deficiency) side.

electric charge moves from the negative (deficiency) side of the battery to the positive (surplus) side.

Is the opposition a material offers to current. the symbol for this is R.

Is Important electrical device that resists current, and the difference between ohmic and non-ohmic resistors relates to how this reacts to different types if current that pass through it.

In an ______ ________, thr resistance provided is the same regardless of the type of current that passes through the device.

In a ______ ________, the resistance changes depending on the type of current passing through it.

are the devices that follow ohm's law.

the designation of ohmic versus non-ohmis involves an electrical law known as ____ ___, which was developed by _____ Ohm.

this law basically says that the current in a circuit is proportional to the amount of voltage in the circuit. because of this proportionality, when voltage and current are plotted in a graph, their relationship is linear.

True or False: an ohmic resistor also has this non linear relationship it its current and voltage are graphed. Non-ohmic resistors, om the other hand, has an irregular graph that is linear.

This law states that the current through a conductor is proportional to the voltage across the conductor.

is defined as the amount of resistance that allows 1A of current to flow when the voltage is 1V.

the current flowing through a wire will be reduced if the wire were made longer, using the same power source. resistance of a uniform conductor is directly proportional to its length

The resistance of conductor is inversely proportional to the square of its diameter or its cross-sectional area.

Wires of different materials offer different amounts of resistance.