Investigating Forces and Motion by Jane Weir

By Jane Weir

Strength and movement are throughout us and support us movement and do good stuff! via quite a few bright photographs and wonderful proof, readers will discover how forces and motions paintings. The easy-to-read textual content and obtainable thesaurus and index make sure that readers have the instruments they should comprehend such innovations as gravity, equilibrium, acceleration, deceleration, electromagnetic fields, strain, kinetic strength, and inertia. to realize extra perception into how gravity, forces, and movement works, a stimulating lab job is featured!

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After all, they had f lown the first airplane in the world. Just wait until next time. . 44 Afterword Many inventors dreamt of f lying. Why did the Wright brothers succeed? One reason was the way they looked at problems. Wilbur and Orville were curious. They saw problems as a chance to learn. Working step-by-step, they found solutions. The step-by-step search for knowledge is called the scientific method. There are five steps: 1. State the problem. 2. Brainstorm for solutions. 3. Try a solution.

Sixty years later, astronauts orbited Earth. Is Mars next? Curiosity and the scientific method make anything possible. 46 Glossary air pressure (AIR PRESH-ur): the force of air pushing on a surface data (DAY-tuh): information learned while testing a machine elevator (EH-luh-VAY-tur): a small extra wing that is used to steer an aircraft up or down lift (LIHFT): the force that pushes up on a wing pitch (PIHTCH): movement of an aircraft up or down roll (ROHL): movement of an aircraft from side to side vanes: (VAYNZ): the long rectangles in the tail of the Wright brothers’ aircraft wingspan (WIHNG-span): the length of an aircraft’s wings from tip to tip wing warping (WIHNG WAHR-pihng): twisting wings to steer an aircraft from side to side yaw (YAW): movement of an aircraft to the right or left 47 Bibliography Crouch, Tom D.

Smith, Norman F. Wings of Feathers, Wings of Flame: The Science and Technology of Aviation. Boston: Little, Brown, 1972. Willford, Neal. ” Sport Aviation, February 2002: 61–68. Wright, Orville. How We Invented the Airplane: An Illustrated History. New York: Dover, 1988.

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