By Robert Gardner
What is friction? what's the coriolis strength? younger scientists will discover the physics of forces and movement with the good experiments during this booklet. Full-color illustrations spotlight key issues to make technology a snap! Many experiments are through principles for technological know-how reasonable initiatives. aid scholars ace their subsequent physics venture or attempt!
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Additional resources for Ace Your Forces and Motion Science Project
Use a clothespin to support a file card in a vertical position close to the balance pan. Use a pencil to mark the position of the balance pan (see Figure 8). To make a scale for your balance so that you can use it to weigh objects in fractions of a gram, you will have to calibrate it. You can do this by first turning the screw at the short end of the balance until the other end of the beam is tipped slightly upward. Then use a standard laboratory balance, such as one at your school, to weigh a 1-m (1-yd) length of fine wire or a sheet of graph paper.
All together, these requirements allow a bowling ball to follow a level, horizontal path on the lane with minimal friction. That is why many of the experiments in this chapter will take place in a bowling alley. Each of the three laws of motion will be examined in turn. Newton's Three Laws of Motion First Law: An object at rest will stay at rest and an object in motion will continue in motion at the same speed and in the same direction unless acted upon by another force. Second Law: The change in speed of an object over a given time is proportional to the force exerted on it.
These words of caution to a wise scientist should be sufficient. , made discoveries that are as relevant today as they were more than two thousand years ago. You can repeat one of his investigations in your kitchen. Use a spring balance to weigh a metal object or a lump of clay suspended from a thread. Record its weight in grams in your science notebook. 4 grams. Then find the volume of the metal or clay by placing it in a graduated cylinder or measuring cup that is partially filled with water.
Ace Your Forces and Motion Science Project by Robert Gardner