"Simple Circuit" Electrical PPT Courseware 3

Description

"Simple Circuit" Electrical PPT Courseware 3

connect match

Each group has a dry battery, a wire and a small light bulb, and the small light bulb is lit.

Use your hand to light up the small bulb...

As soon as you let go, the little light bulb goes off!

Very inconvenient!

Battery box installation

Connect a conductor to both ends of the battery box

wire and install the battery in the battery box.

Small lamp holder installation

Install the small light bulb in the small lamp holder

, and then connect the wires at 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?

1. Let the little light bulb light up

Experimental materials: light bulb 1, small lamp holder 1, battery box 1, battery 1, wire 2

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

Basic requirements for drawing circuit diagrams

Component positions should be arranged appropriately and distributed evenly.

Don't draw components at corners.

The entire circuit diagram should preferably be in a rectangular shape with edges and corners, and the wires should be horizontal and vertical. (Drawing with ruler and compass)

Let more little light bulbs light up

Experimental Materials:

Bulb 2, small lamp holder 2, battery box 1, battery 1, wires 3-4

Experimental tips:

1. Practice in a group and find a way to make two small light bulbs light up.

2. Draw a simple circuit diagram

3. Try to see if there are other different connection methods. If so, draw the circuit diagram.

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.

after school activities

1. Observe simple circuits in life!

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

Keywords: electricity, simple circuit teaching courseware, download the science PPT courseware for the second volume of the fourth grade in the textbook edition, download the fourth grade science slide courseware, download the electricity, simple circuit PPT courseware, .PPT format;

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: 2024-09-20

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

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