Electricity And Magnetism Post-test Sandmann
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fourth grade pretest trimester three Magnetism and electricity
Questions and Answers
- 1.
To pull toward one another, as opposite poles of two magnets pull toward one another.
- A.
Push
- B.
Attract
- C.
Magnetic field
- D.
Repel
Correct Answer
B. AttractExplanation
Opposite poles of two magnets pull toward one another because they are attracted to each other. This attraction is due to the magnetic field generated by the magnets. When two magnets have opposite poles facing each other, the magnetic field lines interact and create a force that pulls the magnets together. This phenomenon is known as attraction.Rate this question:
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- 2.
A pathway for the flow of electricity
- A.
Static
- B.
Switch
- C.
Circuit
- D.
Technology
Correct Answer
C. CircuitExplanation
A circuit is a pathway through which electricity can flow. It is a closed loop that allows the flow of electric current between different components, such as switches and technology. A circuit is essential for the functioning of electrical devices and systems, as it provides a complete path for the electricity to travel and power the desired equipment.Rate this question:
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- 3.
A complete circuit through which electricity flows
- A.
Closed circuit
- B.
Series
- C.
Magnet
- D.
Lightning
Correct Answer
A. Closed circuitExplanation
A closed circuit refers to a complete pathway that allows electricity to flow continuously. In a closed circuit, there are no breaks or gaps, ensuring that the current can flow from the power source through the various components and back to the source. This is in contrast to an open circuit, where there is a break in the pathway, preventing the flow of electricity. Therefore, a closed circuit is the correct answer as it accurately describes a complete circuit through which electricity can flow.Rate this question:
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- 4.
An individual item in a circuit
- A.
Key
- B.
Patent
- C.
Pole
- D.
Component
Correct Answer
D. ComponentExplanation
A component refers to an individual item in a circuit. It is a fundamental part of a circuit that performs a specific function. Components can include resistors, capacitors, transistors, and other electronic devices that are used to build and control circuits. They are essential for the proper functioning of a circuit and play a crucial role in determining its behavior and characteristics.Rate this question:
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- 5.
A substance, commonly a metal such as copper or aluminum, through which electricity will flow.
- A.
Conductor
- B.
Prediction
- C.
Telegraph
- D.
Switch
Correct Answer
A. ConductorExplanation
A conductor is a substance, typically a metal like copper or aluminum, that allows electricity to flow through it. It has low resistance, meaning that it offers little opposition to the flow of electric current. Conductors are used in electrical wiring and circuits to transmit electricity from one point to another.Rate this question:
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- 6.
The flow of electricity through a conductor
- A.
Filament
- B.
Force
- C.
Current
- D.
Detector
Correct Answer
C. CurrentExplanation
The flow of electricity through a conductor is referred to as current. Current is the movement of electric charges, such as electrons, through a material. It is measured in units called amperes (A). When a voltage is applied across a conductor, it creates an electric field that causes the electrons to move, creating a flow of current. The current can be detected using a current detector, which is a device that measures the magnitude and direction of the current.Rate this question:
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- 7.
Something that helps you identify or locate something
- A.
Lodestone
- B.
Series
- C.
Electricity
- D.
Detector
Correct Answer
D. DetectorExplanation
A detector is something that helps you identify or locate something. In this context, a detector is a device or instrument that is used to detect or sense the presence or absence of something, such as a particular substance, object, or condition. It is designed to provide an indication or signal when it detects the desired target, making it useful for identifying or locating that target.Rate this question:
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- 8.
A form of energy that can produce light, heat, and magnetism.
- A.
Electricity
- B.
Code
- C.
Closed
- D.
Open
Correct Answer
A. ElectricityExplanation
Electricity is a form of energy that can produce light, heat, and magnetism. It is generated through the flow of electric charge and is commonly used to power various devices and systems. It can be converted into other forms of energy such as thermal energy or mechanical energy. Electricity plays a crucial role in our daily lives, powering our homes, industries, and transportation systems. It is also used for communication, lighting, and various technological advancements.Rate this question:
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- 9.
A component that uses the electricity from a source to make something happen.
- A.
Intersection
- B.
Electiricty receiver
- C.
Key
- D.
Patent
Correct Answer
B. Electiricty receiverExplanation
An electricity receiver is a component that utilizes electricity from a source to initiate or cause a specific action or process. It acts as a recipient of electrical energy and converts it into a desired form of output, such as mechanical motion, heat, or light. This term can be used to describe various devices or systems that rely on electricity to function, such as motors, generators, or electronic circuits.Rate this question:
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- 10.
Something that provides electric energy to make something happen.
- A.
Magnetism
- B.
Repel
- C.
Telegraph
- D.
Electricity source
Correct Answer
D. Electricity sourceExplanation
An electricity source is something that provides electric energy to make something happen. In the context of the given options, magnetism and repel are not directly related to providing electric energy. The telegraph is a system used for long-distance communication, but it does not necessarily provide electric energy. Therefore, the correct answer is electricity source, as it accurately describes something that generates electric energy.Rate this question:
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- 11.
A push or a pull.
- A.
Force
- B.
Battery
- C.
Coil
- D.
Core
Correct Answer
A. ForceExplanation
The given options - battery, coil, and core - are not related to the concept of a push or a pull. However, force is the correct answer because it is the fundamental concept that describes a push or a pull on an object. Force can cause an object to move, change direction, or change shape.Rate this question:
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- 12.
The influence of a permanent magnet’s magnetic field on a piece of iron, which makes the iron act like a magnet.
- A.
Compass
- B.
Filament
- C.
Induced magnetism
- D.
Gap
Correct Answer
C. Induced magnetismExplanation
Induced magnetism refers to the phenomenon where a piece of iron becomes magnetized when placed in the magnetic field of a permanent magnet. The magnetic field of the permanent magnet aligns the magnetic domains within the iron, causing it to act like a magnet itself. This is why the correct answer is induced magnetism.Rate this question:
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- 13.
A material that prevents the flow of electricity, commonly plastic, rubber, glass, or air.
- A.
Switch
- B.
Magnet
- C.
Gap
- D.
Insulator
Correct Answer
D. InsulatorExplanation
An insulator is a material that does not allow the flow of electricity. It is commonly made of plastic, rubber, glass, or air. Insulators are used to protect against electric shocks and to prevent the loss of electrical energy. They have high resistance to the flow of electric current, which makes them ideal for insulating electrical wires and components.Rate this question:
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- 14.
An object that sticks to iron
- A.
Magnet
- B.
Code
- C.
Filament
- D.
Insulator
Correct Answer
A. MagnetExplanation
A magnet is an object that sticks to iron due to its magnetic properties. When brought close to iron, the magnet creates a magnetic field that attracts the iron and causes it to stick. This phenomenon is known as magnetism. Magnets are commonly used in various applications such as holding objects, generating electricity, and in compasses.Rate this question:
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- 15.
An incomplete circuit through which electricity will not flow.
- A.
Graph
- B.
Key
- C.
Open circuit
- D.
Pole
Correct Answer
C. Open circuitExplanation
An open circuit refers to an incomplete circuit where there is a gap or break in the path, preventing the flow of electricity. In this state, the electrical current cannot pass through and complete the circuit, resulting in no flow of electricity. This can occur when a switch is turned off or when there is a disconnected wire or component in the circuit.Rate this question:
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- 16.
A circuit that splits into two or more pathways before coming together at the battery.
- A.
Magnet
- B.
Static
- C.
Parallel circuit
- D.
Electricity
Correct Answer
C. Parallel circuitExplanation
A parallel circuit is a type of circuit where the current splits into two or more pathways before coming back together at the battery. In a parallel circuit, each pathway has its own components and the voltage across each component is the same. This allows for independent functioning of each pathway, as the current can flow through one pathway without affecting the others. This is different from a series circuit, where the current flows through each component in a single pathway.Rate this question:
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- 17.
To push away, as similar poles of two magnets push away from one another.
- A.
Attract
- B.
Switch
- C.
Graph
- D.
Repel
Correct Answer
D. RepelExplanation
When two magnets have similar poles facing each other, they repel each other. This means that they push away from one another. This phenomenon is due to the magnetic fields generated by the magnets. Like poles create magnetic fields that are oriented in the same direction, causing them to repel each other. Therefore, the correct answer is "repel".Rate this question:
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- 18.
A circuit with only one pathway for current flow.
- A.
Intersection
- B.
Series circuit
- C.
Switch
- D.
Static
Correct Answer
B. Series circuitExplanation
A series circuit is a circuit that has only one pathway for current flow. In a series circuit, the components are connected one after another, forming a single loop. This means that the current flows through each component in the same direction. If any component in the series circuit is disconnected or fails, the entire circuit will be interrupted, and no current will flow. Therefore, a series circuit fits the description of a circuit with only one pathway for current flow.Rate this question:
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- 19.
Positive and negative electric charges that are separated from each other and are not moving.
- A.
Gap
- B.
Circuit
- C.
Parallel
- D.
Static electricity
Correct Answer
D. Static electricityExplanation
Static electricity refers to the accumulation of positive and negative electric charges that are stationary and not in motion. This occurs when there is a separation of charges, such as through friction or contact with certain materials. Unlike in a circuit where charges flow in a continuous loop, static electricity does not involve the movement of charges. The term "static" refers to the fact that the charges remain in one place until they are discharged or neutralized. This phenomenon is commonly observed in everyday life, such as when clothes stick together or when you get a shock after walking on a carpet.Rate this question:
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- 20.
A piece of iron that behaves like a magnet when it is touching a permanent magnet.
- A.
Temporary magnet
- B.
Nail
- C.
Repel
- D.
Switch
Correct Answer
A. Temporary magnetExplanation
A piece of iron that behaves like a magnet when it is touching a permanent magnet is called a temporary magnet. This means that the iron piece only exhibits magnetic properties when it is in close proximity to the permanent magnet. Once it is no longer in contact with the permanent magnet, it loses its magnetism.Rate this question:
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battery maintenance MCQ quiz questions with answers
battery maintenance MCQ quiz questions with answers
Electricity - Class 10th free online Test - Ankan Sir
Electricity - Class 10th free online Test - Ankan Sir
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