Questions and Answers
Electricity is the flow of electrical charge when BLANK move through matter.
electrons
Electrons are negatively charged particles that are always being attracted to BLANK in an atom's nucleus.
protons
Materials that can easily transmit electrical energy from atom to atom are called?
conductors
BLANK are materials with tightly bound electrons that don't transmit electrical energy well.
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BLANK is not an example of a conductor.
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The amount of energy needed to move electrical charge from one point to another is called?
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Lower voltage means BLANK flowing electrons.
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A flowing stream of electrons is called a?
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BLANK is how much and how quickly electric charge passes by a certain point in a conductor.
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To make use of electrons, you need a source, such as?
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A closed loop of flowing electricity is called a?
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The work that electrons do is called a?
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In a parallel circuit, electrons travel along BLANK paths.
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A unit of power that measures how quickly energy is being used in a circuit is called?
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The temporary storage of electrical charges on a surface is called?
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Study Notes
Electricity Basics
- Electricity refers to the flow of electrical charge resulting from the movement of electrons through matter.
- Electrons are negatively charged particles in an atom that are attracted to positively charged protons in the nucleus.
Conductors and Insulators
- Conductors are materials that facilitate the easy transmission of electrical energy from one atom to another.
- Insulators, in contrast, have tightly bound electrons that resist the flow of electrical energy.
Examples of Materials
- Rubber is identified as a non-conductor, meaning it does not effectively transmit electrical energy.
Voltage and Current
- Voltage is defined as the amount of energy required to move an electrical charge between two points.
- Lower voltage corresponds to a reduced flow of electrons.
- Current is the term for the continuous flow of electrons in a circuit and indicates how much electric charge passes a certain point.
Circuits and Power
- A circuit is a closed loop that allows for the flow of electricity to occur.
- The work accomplished by electrons as they move through a circuit is referred to as a load.
- In parallel circuits, electrons can flow through separate paths, allowing multiple routes for electricity.
Measurement of Power
- Power in a circuit is measured in watts, reflecting how quickly energy is used.
Static Electricity
- Static electricity represents the temporary storage of electrical charges on a surface, often noticed as a buildup of charge.
Energy Sources
- A battery serves as a source for providing the necessary energy to mobilize electrons for electrical work.
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