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Questions and Answers
Match the following components with their functions in a simple circuit:
Match the following components with their functions in a simple circuit:
Power source = Provides energy for the circuit Conductor = Allows electricity to flow Load = Uses energy from the power source Closed loop = Enables continuous electricity flow
Match the following characteristics with their descriptions in a simple circuit:
Match the following characteristics with their descriptions in a simple circuit:
Closed loop = Electricity flows from the positive terminal to the negative terminal One way = Electricity flows continuously in a circular path Series circuit = Components are connected between the same two points Parallel circuit = Components are connected one after the other
Match the following energy transfer concepts with their explanations:
Match the following energy transfer concepts with their explanations:
Energy transfer = Conversion of electrical energy to other forms of energy Efficiency = Ratio of useful energy to total energy transferred Ideal efficiency = 100% conversion of electrical energy to useful energy Real-world efficiency = Less than 100% conversion of electrical energy to useful energy
Match the following types of circuits with their descriptions:
Match the following types of circuits with their descriptions:
Match the following concepts with their explanations in electric circuits:
Match the following concepts with their explanations in electric circuits:
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Study Notes
Electricity and Batteries
Simple Circuits
- A simple circuit consists of:
- A power source (e.g., battery)
- Conductors (e.g., wires)
- A load (e.g., light bulb)
- Characteristics of a simple circuit:
- Closed loop: the circuit must be continuous for electricity to flow
- One way: electricity flows from the positive terminal of the power source, through the conductor, and back to the negative terminal
- Types of simple circuits:
- Series circuit: components are connected one after the other
- Parallel circuit: components are connected between the same two points
Energy Transfer
- Energy transfer in electric circuits:
- Electrical energy is converted into other forms of energy (e.g., light, heat, sound)
- Energy is transferred from the power source to the load
- Efficiency of energy transfer:
- Ideal efficiency: 100% (all electrical energy is converted to useful energy)
- Real-world efficiency: <100% (some energy is lost as heat, etc.)
- Factors affecting energy transfer:
- Resistance: opposes the flow of electricity, converting some energy into heat
- Voltage and current: affect the rate of energy transfer
Simple Circuits
- A simple circuit consists of a power source (e.g., battery), conductors (e.g., wires), and a load (e.g., light bulb)
- Characteristics of a simple circuit:
- Closed loop: the circuit must be continuous for electricity to flow
- One way: electricity flows from the positive terminal of the power source, through the conductor, and back to the negative terminal
Types of Circuits
- Series circuit: components are connected one after the other
- Parallel circuit: components are connected between the same two points
Energy Transfer
- Energy transfer in electric circuits: electrical energy is converted into other forms of energy (e.g., light, heat, sound)
- Energy is transferred from the power source to the load
- Efficiency of energy transfer:
- Ideal efficiency: 100% (all electrical energy is converted to useful energy)
- Real-world efficiency: less than 100% (some energy is lost as heat or other forms)
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