"Convex Lens" PPT

Description

"Convex Lens" PPT

Part I: Basic structure of straight magnifying glass

Lenses Frames Lenses

Various magnifying glasses

desktop magnifying glass

Eyecup magnifying glass

portable magnifying glass

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

Part 2: Experiment

Experimental validation of our findings

Discuss in groups and design experimental plans.

Experimental requirements

1. The group listens carefully to the division of labor and experimental requirements.

2. Fill out the experiment record sheet.

hint:

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

2. Please turn off the flashlight in time when not in use.

After the test is completed, the candle must be extinguished.

Part Three: The Function of Convex Lenses

1. Zoom in

2. Concentration

3. Imaging

Can a convex lens magnify any object?

Applications of convex lenses in daily life

What should you pay attention to when using convex lenses outdoors?

What is the function of convex lens used?

Part 4: Homework

What did you gain from this class?

Operation:

I am a little inventor, using glass bottles and water to make a convex lens.

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"Convex Lens" PPT courseware:

"Convex Lens" PPT Courseware Part One: Introduction to Convex Lenses A transparent lens with thin edges and thick middle like a magnifying glass is called a convex lens. Guess what are the functions of convex lenses? ... ... ... Part 2: Design experiments and verify conjectures Experimental materials...

"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: 2024-11-22

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