"Understanding Circuits" Simple Circuit PPT Courseware

Description

"Understanding Circuits" Simple Circuit PPT Courseware

simple circuit connections

Modern life without electricity would be unimaginable. Occasionally, if there is a power outage, modern cities will be unable to move forward.

Observe and think

Circuit: Use wires to connect power supplies, electrical appliances, and switches to form a path for current.

1. Composition of the circuit

A circuit is a path that connects power supplies, switches, and electrical appliances with wires to form a current path.

think

What symbol is the positive terminal of a power supply usually marked with? What symbol is the negative terminal usually marked with?

common switches

Think: What state should the switch be in when connected to the circuit?

2. Access, open circuit and short circuit

1. Path: a circuit that is connected everywhere.

2. Open circuit: disconnected circuit.

3. Short circuit: A circuit in which the two poles of the power supply are directly connected with wires without using electrical appliances.

3. Circuit diagram

Use prescribed symbols to represent components in a circuit, and connect these symbols with line segments representing wires to represent a circuit composed of physical objects. This kind of diagram is called a circuit diagram.

Notice

(1) Use uniformly prescribed symbols;

(2) Try to avoid crossing;

(3) Connect the wires horizontally and vertically, and try to keep the circuit diagram simple and beautiful;

(4) The component layout is reasonable;

(5) Power supply, switches and electrical appliances cannot be connected at corners;

(6) The positions of components in the circuit diagram should correspond to the physical diagram.

Exercise: How are the flashlight batteries, bulbs, and switches connected? Generally, the shell of a flashlight is made of metal. What role does it play? How to connect the battery and bulb to a plastic-cased flashlight? Try to draw the circuit diagram of the flashlight in the picture.

answer:

① The metal shell acts as a conductor.

② The plastic-cased flashlight uses wires to connect the battery and bulb.

On-site inspection:

1. Connect ________, ________, and ________ with ________ to form a circuit. Only when the circuit ________, can there be current in the circuit.

2. The power supply in the circuit is a device for ________ electric energy, the electrical appliance is a device for ________, the wire is for ________ electric energy, and the switch is for __________.

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For more information about the PPT courseware "Simple Circuits to Understand Circuits", please click the Simple Circuits ppt to Understand Circuits ppt tag.

"Understanding Circuits" Simple Circuit PPT Courseware 6:

"Understanding Circuits" Simple Circuit PPT Courseware 6 Main Contents of the Project The composition of circuits. The power supply can provide _____ devices to electrical appliances. Electrical appliances use _____ to work and convert _____ energy into _____ energy. The device switches. The installation of the control circuit _____ in the circuit...

"Understanding Circuits" Simple Circuit PPT Courseware 5:

"Understanding Circuits" Simple Circuit PPT Courseware 5 The composition of a circuit: Power supply: a device that provides electrical energy. 1. Common power sources include: dry batteries, storage batteries and generators 2. Energy conversion of power sources: other forms of energy can be converted into electrical energy. Electrical appliances: electrical appliances that consume electrical energy..

"Understanding Circuits" Simple Circuit PPT Courseware 4:

"Understanding Circuits" Simple Circuit PPT Courseware 4 Circuit Assembly Competition Two requirements: 1. Let the small light bulb shine, or the motor rotates and the bell makes a sound. 2. It can conveniently control small light bulbs to light up, motors to rotate or bells to sound. One note: It is prohibited to use guides..

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Update Time: 2024-10-05

This template belongs to Physics courseware Beijing Normal University Ninth Grade Physics Volume 1 industry PPT template

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