Mrs. Miller - Electricity Vocab. Quiz
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Questions and Answers
- 1.
The energy of moving electrons
- A.
Static electricity
- B.
Electrical energy
- C.
Ion
Correct Answer
B. Electrical energyExplanation
Electrical energy refers to the energy associated with the movement of electrons in a conductor. When electrons flow through a circuit, they carry energy with them, which can be used to power devices or perform work. In the case of static electricity, the movement of electrons from one object to another generates an electrical charge, which can be released as a spark or used to perform work. Therefore, the correct answer for the given question is electrical energy.Rate this question:
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- 2.
A charged atom is called
- A.
Static electricity
- B.
Electrical energy
- C.
Ion
Correct Answer
C. IonExplanation
A charged atom is called an ion because it has gained or lost electrons, resulting in a net positive or negative charge. This charge imbalance makes the atom electrically charged, and it is referred to as an ion.Rate this question:
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- 3.
The separation of positive and negative charges on an object is...
- A.
Static electricity
- B.
Electrical energy
- C.
Electric current
Correct Answer
A. Static electricityExplanation
Static electricity refers to the accumulation of electric charges on the surface of an object, resulting in the separation of positive and negative charges. This separation occurs when electrons are transferred from one object to another through friction, causing an imbalance in charge distribution. Unlike electrical energy and electric current, which involve the flow of charges in a circuit, static electricity does not involve a continuous flow of charges but rather a buildup of charges on an object.Rate this question:
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- 4.
A substance that allows electrons to flow through it EASILY is ..
- A.
Conductor
- B.
Insulator
- C.
Electric current
Correct Answer
A. ConductorExplanation
A conductor is a substance that allows electrons to flow through it easily. This means that it has a high conductivity, meaning it has a large number of free electrons that can move freely within the material. Conductors are typically metals, such as copper or aluminum, which have a large number of loosely bound electrons in their outermost energy level. These free electrons can easily move in response to an electric field, allowing for the flow of electric current.Rate this question:
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- 5.
A substance that does not allow electrons to flow through it easily is ..
- A.
Conductor
- B.
Electrical energy
- C.
Insulator
Correct Answer
C. InsulatorExplanation
An insulator is a substance that does not allow electrons to flow through it easily. Unlike conductors, which allow the free movement of electrons, insulators have tightly bound electrons that do not move easily. This lack of electron mobility makes insulators poor conductors of electrical energy.Rate this question:
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- 6.
A closed path through which electrons can travel is called an
- A.
Electric circuit
- B.
Electrical energy
- C.
Insulator
Correct Answer
A. Electric circuitExplanation
An electric circuit refers to a closed path through which electrons can flow. It consists of various components such as wires, resistors, capacitors, and power sources, which are connected in a loop. This allows the flow of electrical current, enabling the transfer of electrical energy from the power source to the different components in the circuit. An electric circuit is essential for the functioning of various electrical devices and systems.Rate this question:
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- 7.
A spot where electric current is prevented from reaching an appliance is called a
- A.
Short circuit
- B.
Conductor
- C.
Series circuit
Correct Answer
A. Short circuitExplanation
A short circuit is a spot where electric current is prevented from reaching an appliance. In a short circuit, the current bypasses the normal path and flows directly from the power source to the ground, causing a surge in current flow. This can result in overheating, damage to the circuit, and even fire hazards. Therefore, a short circuit is the correct answer as it accurately describes a situation where electric current is prevented from reaching an appliance.Rate this question:
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- 8.
A circuit in which the parts are connected in a single loop is called
- A.
Short circuit
- B.
Conductor
- C.
Series circuit
Correct Answer
C. Series circuitExplanation
A series circuit is a type of circuit where the components are connected in a single loop, meaning that the current flows through each component in sequence. In a series circuit, the total resistance is equal to the sum of the individual resistances, and the current remains constant throughout the circuit. This is in contrast to a parallel circuit, where the components are connected in multiple branches, allowing for different currents to flow through each component. Therefore, the correct answer is series circuit.Rate this question:
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- 9.
A circuit that has many paths through which electric current can flow is called a
- A.
Short circuit
- B.
Parallel circuit
- C.
Series circuit
Correct Answer
B. Parallel circuitExplanation
A parallel circuit is a circuit that has multiple paths for electric current to flow. In a parallel circuit, the components are connected in such a way that the current has multiple routes to follow. This means that if one component fails or is removed, the current can still flow through the other paths. In contrast, a series circuit only has one path for the current to flow, and a short circuit occurs when there is an unintended connection between two points in a circuit, causing a large amount of current to flow.Rate this question:
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- 10.
A device that opens and closes a circuit is a...
- A.
Patch
- B.
Parallel circuit
- C.
Switch
Correct Answer
C. SwitchExplanation
A switch is a device that can open and close a circuit, allowing or stopping the flow of electric current. It is commonly used to control the flow of electricity in various electrical systems and appliances. By toggling the switch, the circuit can be either completed or interrupted, resulting in the desired functionality.Rate this question:
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- 11.
A magnet formed by electric current running through a coiled wore wrapped around an iron bar is called an
- A.
Electromagnet
- B.
Magnet
- C.
Switch
Correct Answer
A. ElectromagnetExplanation
An electromagnet is formed by electric current running through a coiled wire wrapped around an iron bar. When electric current flows through the wire, it creates a magnetic field around the iron bar, turning it into a magnet. Unlike a permanent magnet, an electromagnet can be turned on and off by controlling the flow of electric current. This makes electromagnets useful in various applications such as in electric motors, speakers, and magnetic cranes.Rate this question:
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- 12.
A device that uses a magnet to convert mechanical energy into electrical energy is a (an)
- A.
Electromagnet
- B.
Generator
- C.
Switch
Correct Answer
B. GeneratorExplanation
A generator is a device that converts mechanical energy into electrical energy. It does this by using a magnet to induce a flow of electrons in a wire, creating an electric current. This process is based on the principle of electromagnetic induction. When the mechanical energy is applied to the generator, it causes the magnet to rotate, which in turn generates the electrical energy. Therefore, a generator is the correct answer in this case.Rate this question:
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- 13.
A device that converts the energy in a stream of fluid into mechanical energy is called a
- A.
Turbine
- B.
Generator
- C.
Magnet
Correct Answer
A. TurbineExplanation
A turbine is a device that converts the energy in a stream of fluid, such as air or water, into mechanical energy. It does this by utilizing the kinetic energy of the fluid to rotate its blades or vanes. The rotating motion of the turbine can then be used to generate electricity or perform other mechanical tasks. Generators, on the other hand, are devices that convert mechanical energy into electrical energy. Magnets, although they can be used in generators, do not directly convert fluid energy into mechanical energy.Rate this question:
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- 14.
A fuel formed over many years from the remains of living organisms is
- A.
A renewable energy source
- B.
Generator
- C.
A fossil fuel
Correct Answer
C. A fossil fuelExplanation
A fuel formed over many years from the remains of living organisms refers to fossil fuels such as coal, oil, and natural gas. These fuels are derived from ancient plants and animals that were buried and subjected to heat and pressure over millions of years. Fossil fuels are considered non-renewable because they take millions of years to form and cannot be replenished within a human lifetime. Therefore, the correct answer is "a fossil fuel."Rate this question:
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- 15.
A resource that cannot be replaced, or can only be replaced after a long period of time is a ..
- A.
A nonrenewable energy source
- B.
A renewable energy source
- C.
A fossil fuel
Correct Answer
A. A nonrenewable energy sourceExplanation
A resource that cannot be replaced, or can only be replaced after a long period of time, is referred to as a nonrenewable energy source. This means that once these resources are depleted, they cannot be replenished within a reasonable timeframe. Examples of nonrenewable energy sources include fossil fuels like coal, oil, and natural gas, which are formed over millions of years and cannot be easily replaced.Rate this question:
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- 16.
A resource that can be replaced through natural processes over a short period of time is a
- A.
A nonrenewable energy source
- B.
A renewable energy source
- C.
A fossil fuel
Correct Answer
B. A renewable energy sourceExplanation
A resource that can be replaced through natural processes over a short period of time is classified as a renewable energy source. This means that the resource is not depleted or permanently exhausted when it is used, as it can be replenished naturally within a relatively short timeframe. Renewable energy sources include solar power, wind power, hydroelectric power, and biomass energy. These sources are considered more sustainable and environmentally friendly compared to nonrenewable energy sources such as fossil fuels, which are finite and take millions of years to form.Rate this question:
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- 17.
The practice of using energy wisely and finding ways to to use less energy is called...
- A.
A nonrenewable energy source
- B.
A renewable energy source
- C.
Energy conservation
Correct Answer
C. Energy conservationExplanation
Energy conservation refers to the practice of using energy efficiently and finding ways to reduce energy consumption. It involves making conscious efforts to use less energy and make efficient use of available energy resources. This can be achieved through various methods such as using energy-efficient appliances, insulating buildings, and adopting sustainable energy practices. Energy conservation is an important strategy to reduce greenhouse gas emissions and mitigate climate change.Rate this question:
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- 18.
The branch of science that studies the uses if electric current and the development of electronic devices is called...
- A.
Electronics
- B.
Energy Conservation
- C.
Biology
Correct Answer
A. ElectronicsExplanation
The branch of science that studies the uses of electric current and the development of electronic devices is called electronics. This field focuses on the behavior and control of electrons in various materials and devices, such as transistors, integrated circuits, and electronic systems. It involves the design, analysis, and application of electronic circuits and devices for various purposes, including communication, computation, and control systems.Rate this question:
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- 19.
A tiny slice of silicon on which an entire circuit is formed is called...
- A.
A microchip
- B.
A computer
- C.
A circuit
Correct Answer
A. A microchipExplanation
A tiny slice of silicon on which an entire circuit is formed is called a microchip. A microchip is a small integrated circuit that contains all the necessary components of a circuit, such as transistors, resistors, and capacitors, on a single piece of silicon. It is the main component of electronic devices and is responsible for processing and storing information.Rate this question:
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Jul 25, 2024Quiz Edited by
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Mar 09, 2011Quiz Created by
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