By Robert Gardner
What is friction? what's the coriolis strength? younger scientists will discover the physics of forces and movement with the nice experiments during this publication. Full-color illustrations spotlight key issues to make technological know-how a snap! Many experiments are by way of principles for technology reasonable initiatives. aid scholars ace their subsequent physics venture or attempt!
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Extra info for Ace Your Forces and Motion Science Project
Remove the heavier ball and set it aside. Place the other bowling ball back in the gutter as before. Set the lightest ball on the mark on the plank. Release it. What happens to both balls? How do you explain the results? When the heavier ball hits the ball in the gutter, the heavier ball slows down but keeps rolling. At the same time, the ball in the gutter (lighter ball) moves rapidly away. To explain this, consider that the third law says that each ball will exert an equal but opposite force on the other one.
It is the thing that the experimenter intentionally changes. After the data is collected, it is analyzed to see whether the hypothesis was true or false. Often, the results of one experiment will lead you to a related question, or they may send you off in a different direction. Whatever the results, there is something to be learned from all scientific experiments. SCIENCE FAIRS Many of the experiments in this book may be appropriate for science fair projects. Experiments marked with a symbol () include a section called Science Fair Project Ideas.
If someone is convinced that water always spirals clockwise down a drain in the Northern Hemisphere, partially fill a sink or bathtub with water. Use your hand to give the water a counterclockwise rotation a few minutes before you invite that person to watch the water empty down the drain. Even though the water will appear to be still, there will be enough residual rotation to make the water spiral counterclockwise down the drain. If someone else is convinced that water always spirals counterclockwise, you can demonstrate clockwise rotation by using the same technique.