Janice VanCleave's Physics for Every Kid: 101 Easy by Janice VanCleave

By Janice VanCleave

How do magnets paintings? What makes a curve ball curve? What retains an plane within the air? How can a pulley make you 5 occasions more desirable? you can now examine the solutions to those and different questions on uncomplicated physics via one zero one enjoyable, secure, reasonably cheap experiments and actions that may be played at domestic or within the school room. In Physics for each child, you will find out about gravity from funnels that appear to defy nature via rolling up hill. utilizing a balloon as an influence resource, you will make a fluorescent mild bulb glow and find out how electrons are used to provide gentle. and you may levitate a Ping-Pong ball to appreciate aerodynamics. all of the a hundred and one experiments is damaged down into its goal, an inventory of fabrics, step by step directions, anticipated effects, and a simple to appreciate rationalization. each task has been pretested and will be played thoroughly and inexpensively within the school room or at domestic. additionally to be had during this sequence from Janice VanCleave: Astronomy for each child Biology for each child Chemistry for each child Dinosaurs for each child Earth technological know-how for each child Geography for each child Geometry for each child The Human physique for each child Math for each child

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Extra info for Janice VanCleave's Physics for Every Kid: 101 Easy Experiments in Motion, Heat, Light, Machines, and Sound (Science for Every Kid Series)

Example text

Newton's Law of Action and Reaction states that when an object is pushed, it pushes back. When the balloon  < previous page < previous page page_142 page_143 next page > next page > Page 143 was opened, the walls of the balloon pushed the air out. When the balloon pushed against the air, the air pushed back and the balloon moved forward, dragging the straw with it. The string and straw keep the balloon rocket on a straight course. 36 37  < previous page < previous page page_143 page_144 next page > next page > Page 144 61 Bonk!

Wrap the aluminum strip around the box as many times as possible, leaving about 6 in. (15 cm) free on both ends of the strip. Turn the box with the compass so that the aluminum winding is pointing in a north-to-south direction. Tape one end of the aluminum strip to the positive end of the battery. Watch the compass needle as you touch the free end of the metal strip to the negative end of the battery. Alternately touch the metal strip to the battery and remove it several times. Results The needle on the compass moves away from, and then returns to, its north-to-south direction when the metal strip is touched to and then removed from the battery.

The friction from the air, book, and floor is the same during both experiments; thus, they do not have to be considered. In Experiment 71, it was discovered that heavier objects roll farther. The water makes the jar heavier, but the water hits against the inside of the jar as it rolls down the incline, increasing the friction inside the jar. It takes more energy to move this jar with the wobbling water inside. Â < previous page < previous page page_166 page_167 next page > next page > Page 167 57 58 Â < previous page < previous page page_167 page_168 next page > next page > Page 168 73 Spinner Purpose To determine how the speed of a rotating object is affected by its distance from the center.

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