"Convex Lens" PPT courseware

Description

"Convex Lens" PPT courseware

Part One: Introduction to Convex Lenses

A transparent lens that is thin at the edges and thick in the middle, like a magnifying glass, is called a convex lens

Take a guess

What are the functions of convex lenses?

Part 2: Design experiments and verify conjectures

Experimental materials: magnifying glass, laser light, candles, matches, imaging screen

Experimental purpose: to study the effect of convex lenses.

Kind tips:

1. Fix the candle after it is lit and extinguish it quickly when not in use.

2. Do not illuminate your eyes with laser light.

3. Record the questions, doubts and findings in a timely manner.

Part 3: The secret of convex lens imaging

Can you use the following three devices to discover the secret of convex lens imaging?

1. Pay attention to safety and be careful of candle burns.

2. Carefully write down your group’s practices and findings in the record sheet.

Part 4: Convex lenses and life

Use the materials you bring with you,

Use your creativity,

Let’s make a convex lens!

Keywords: Qingdao edition fourth grade science PPT courseware for the second volume free download, convex lens PPT download, .PPT format;

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"Convex Lens" PPT:

"Convex Lens" PPT Part One Content: The basic structure of a straight-handled magnifying glass, lens frame, handle, various magnifying glasses, desktop magnifying glass, eyecup-type magnifying glass, portable magnifying glass, such as a magnifying glass, a transparent lens that is thick in the middle and thin at the edge is called a convex lens.... .

"Convex Lens Imaging" Wonderful Light PPT Courseware:

"Convex Lens Imaging" Wonderful Light PPT Courseware The basic structure of a straight-handled magnifying glass Lens Frame Handle Convex lens A transparent lens with thin edges and thick middle like a magnifying glass is called a convex lens. How to use a magnifying glass correctly? When using a magnifying glass to observe objects, you should place it...

"Exploring the Imaging Laws of Convex Lenses" Light and Eyes PPT Courseware:

"Exploring the Imaging Rules of Convex Lenses" Light and Eyes PPT Courseware Learning Objectives 1. Know the rules of convex lens imaging through experimental exploration 2. Know the working principle of a magnifying glass 3. Preliminary learning to formulate experimental plans and select equipment required for experiments according to the purpose of inquiry 4. Through experiments ..

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Update Time: 2024-09-30

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

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