"Simple Circuit" Electrical PPT Courseware

Description

"Simple Circuit" Electrical PPT Courseware

1. Conductors and insulators

Conductor: An object that easily conducts electricity

Insulator: an object that does not conduct electricity easily

2. Components and functions of the circuit

1 Power supply: Provide electrical energy (convert other forms of energy into electrical energy)

2 switch: control circuit on and off

3. Electrical appliances: consume electrical energy (convert electrical energy into other forms of energy)

4 wires: connect circuit components

3. Circuit status

1.Passage: connected circuit

2. Open circuit: disconnected circuit

3. Short circuit: directly connect the two poles of the power supply with a wire

Battery box installation

Connect a wire to both ends of the battery box and install the battery in the battery box.

Small lamp holder installation

Install the small light bulb on the small lamp holder and connect the wires to both ends.

(1) What should I pay attention to when installing the battery?

(2) How is the small light bulb installed on the small lamp holder?

(3) How to connect the wires?

Make a circuit detector

Production Method:

Remove the switch from the circuit that lights up the light bulb, as shown in the picture, and the "circuit detector" is complete.

--Can be used to detect faults in circuits.

Notice:

① After making it, be sure to test whether the small light bulb lights up;

② Pay attention to safety and do not use it to detect human bodies or 220V circuits.

Detect the wire: Use the two detection heads of the circuit detector to connect the two ends of a wire. If the small bulb lights up, it means that the wire is not faulty; if the small bulb does not light up, it means that the wire is faulty.

Detect the light bulb: Use the two detection heads of the circuit detector to connect the two connection points of the light bulb. If the small light bulb lights up, it means that the light bulb is not faulty; if the small light bulb does not light up, it means that the light bulb is faulty.

Test the battery: Take out the battery from the battery box of the circuit detector, put the battery in the faulty circuit into the battery box of the circuit detector, and see if the small light bulb lights up. If the small light bulb lights up, it means that the battery is still there. If the small light bulb does not light up, it means that the battery is out of power.

Characteristics of series circuits

1) There is only one path for current, and the current passing through one component also passes through another component.

2) Only one switch is needed in the circuit, and the position of the switch has no effect on the circuit.

Characteristics of parallel circuits

1) Electric current has two (or more) paths.

2) Each component can work independently.

3) The switch of the main circuit controls the entire main circuit, and the switch of the branch circuit only controls the branch circuit.

Understand: unit

Current (I): Ampere (A)

Voltage (U): Volts (V)

When resistance remains constant, current is proportional to voltage

after school activities

1. Observe simple circuits in life!

2. Use the knowledge learned in class to explain circuit phenomena in life!

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For more information about the "Electricity Simple Circuit" PPT courseware, please click the "Electricity ppt Simple Circuit ppt" tab.

"Simple Circuit" PPT download:

"Simple Circuit" Electricity PPT Download Part 1 content: Import new knowledge. Each group has a dry battery, a wire and a small light bulb, and lights up the small light bulb. Conclusion: A section of wire and a battery can light up a small light bulb. The wire and battery and a small light bulb form a simple...

"Simple Circuit" Electrical PPT:

"Simple Circuit" Electricity PPT Part One Content: Circuit with Lamp Holder Connection Competition: Use a dry battery, a small light bulb, and a wire to light up the small light bulb and see who can do it quickly and well! Is it convenient to light a small light bulb by pressing it with your hand? Will the light bulb still light up if I let go?

"Exploring Voltage in Series and Parallel Circuits" Exploring Simple Circuits PPT Courseware 2:

"Exploring Voltage in Series and Parallel Circuits" Exploring Simple Circuit PPT Courseware 2 Teaching Objectives: 1. Be able to use a voltmeter to measure series and parallel circuits. Learn the basic skills of connecting circuits. 2. Know the relationship between series and parallel voltages. [Review before class] 1. The function of voltage is______..

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Update Time: 2024-09-30

This template belongs to science courseware Fourth Grade Science Volume 2, Textbook Edition industry PPT template

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