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Questions and Answers

- 1.
### Joel's earlier model of electricity used water as an analogy for charge. His current model uses air as an analogy. Why does he think air is a better analogy?

- 2.
### Why are models important for teaching and learning about subjects such as electricity? (Ope response)

- 3.
### ___________ is what we call charge flowing through wires.

Explanation

Electricity is the term used to describe the flow of charge through wires. It is the movement of electrons along a conductive path, such as a wire, due to the presence of a voltage difference. This flow of charge is what powers electrical devices and allows for the transmission of energy.Rate this question:

- 4.
### __________ is the way we control electricity in various devices.

Explanation

Electronics refers to the branch of physics and engineering that deals with the behavior and control of electrons in various devices. It involves the study and application of electronic components, circuits, and systems that manipulate electrical signals to perform specific functions. Hence, electronics is the correct answer as it encompasses the techniques and methods used to control electricity in various devices.Rate this question:

- 5.
### __________ flows through the circuit.

- 6.
### A ____________ is a closed, continuous conducting loop.

Explanation

A circuit is a closed, continuous conducting loop through which electric current can flow. It typically consists of wires, resistors, capacitors, and other electrical components connected in a loop or series, allowing the flow of electrons. This closed loop ensures that the current can travel from the power source through the various components and back to the source, enabling the circuit to function properly. A circuit can be found in various electronic devices and systems, such as computers, televisions, and lighting systems.Rate this question:

- 7.
### The _________ provides the energy carried by the moving charge.

Explanation

The source provides the energy carried by the moving charge. It is the origin or starting point of the energy that is transferred by the moving charge.Rate this question:

- 8.
### The ___________ uses the energy supplied by moving charge.

Explanation

A load is a device or component in an electrical circuit that consumes or uses the energy supplied by moving charge. It can be a resistor, motor, light bulb, or any other device that converts electrical energy into another form, such as heat, light, or mechanical motion. The load is connected to the power source and allows the flow of current, causing the energy to be transferred and utilized.Rate this question:

- 9.
### ________ is the electrical pressure difference in a circuit measured in volts.

Explanation

The term "voltage difference" refers to the electrical pressure difference in a circuit, which is measured in volts. Voltage difference is a fundamental concept in electricity that represents the potential energy per unit charge between two points in a circuit. It determines the flow of electric current and is essential for understanding the behavior of electrical systems.Rate this question:

- 10.
### The flow rate of charge moving through a circuit that is measured in amps is called _________.

Explanation

Current is the flow rate of charge moving through a circuit, and it is measured in amps. It represents the rate at which electric charges, such as electrons, move through a conductor. Current is a fundamental concept in electricity and is essential for the operation of electrical devices. It is denoted by the symbol "I" and is calculated by dividing the amount of charge passing through a point in the circuit by the time it takes for the charge to pass.Rate this question:

- 11.
### The property of the components of a circuit that slows the current flow and is measured in ohms is called ________.

Explanation

Resistance is a property of the components in a circuit that hinders the flow of electric current. It is measured in ohms, which is the unit of electrical resistance. Resistance can be caused by various factors such as the length, thickness, and material of the conductor. It is an essential characteristic of a circuit as it helps control the amount of current flowing through it.Rate this question:

- 12.
### __________ is the amount of energy transferred in a given amount of time and measured in watts.

Explanation

Power is the correct answer because it refers to the amount of energy transferred in a given amount of time and is measured in watts. In physics, power is the rate at which work is done or energy is transferred, and it is calculated by dividing the amount of work or energy by the time it takes to complete it. Therefore, power is the appropriate term to describe the concept of energy transfer over time and its measurement in watts.Rate this question:

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