Easy Experiments In Physics
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Discovering Light
What is light? Where are optics and photonics present in our lives and in nature? What lies behind different optical phenomena? What is an optical instrument? How does the eye resemble an optical instrument? How can we explain human vision? This book, written by a group of young scientists, answers these questions and many more.
Simple Physics Experiments with Everyday Materials
Author: Judy Breckenridge
language: en
Publisher: Sterling Publishing (NY)
Release Date: 1993
Includes over sixty simple experiments which provide information about heat, air, light, sound, gravity, and more.
Easy Experiments in Physics
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 edition. Excerpt: ... experiment 71. solar spectrum. Apparatus. A tin dish, a small piece of looking-glass. Fig. 15. Nearly fill the dish with water, and place it near a window in bright sunlight. Put the piece of looking-glass in the water in an inclined position, so that a beam of sunlight after passing in an inclined direction through the water will be reflected by the mirror, forming an image on the wall. Obs. the image on the wall, and name all the colors seen. Call this colored band the solar spectrum. What is the effect of the water on the beam of light? What is the effect on the mirror? Can you explain how the solar spectrum is formed? Compare the colors of the solar spectrum with the colors of the rainbow. When is a rainbow to be seen? Read about the formation of the rainbow. gravity. experiment 72. illustration. direction. Apparatus. A stone, a piece of wood, a string. a. Hold a heavy stone several feet from the ground. Obs. the effect on the hand. Let go of the stone. Obs. what happens. b. Tie a small piece of lead to one end of a string and hold the other end in the hand. Call this a plumb-line. Obs. the direction of the string. What causes the action of the stone? Call this force gravity. What force acts on the string? What is the direction of this force? What use is made of the plumbline? Give another name for this line. In how many places on the surface of the earth might this experiment be taken with a similar result? Explain this experiment by use of a diagram representing a section of the earth by a circle. Read about Sir Isaac Newton and gravitation. experiment 73. centre of gravity. Apparatus. An irregular piece of cardboard about i ft. square, a plumb-line and a pin. Take an irregularl