Unit 7 - Motion, Force, Work and Machines
Vocabulary
Motion, reference point, speed, velocity, acceleration, momentum, force, Newton's 1st Law of Motion, Newton's 2nd Law of Motion, Newton's 3rd Law of Motion, inertia, Law of Universal Gravitation, gravity, weight, friction, independent variable, dependent variable, work, Joule, power, Watt, mechanical advantage, mechanical efficiency, 6 simple machines - pulley, lever, inclined plane, screw, wheel & axle, wedge
Formulas
Speed = Distance
Time Average Speed = Total distance Total time Velocity = Distance (w/ direction) Time Acceleration = Final velocity - Initial velocity Time Momentum = Mass x Velocity Weight = Mass x Gravity Force = Mass x Acceleration |
Work = Force x Distance
Power = Work Time Mechanical Advantage = Output Force Input Force Mechanical Efficiency = Output Work (100) Input Work |
Unit Resources
Lab Resources
Enrichment
Canadian astronaut Chris Hadfield has travel to space on four missions and was the first Canadian to walk in space.
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Our main way to and from space at the current time is via Russian Soyuz rockets. Astronauts from both Germany and Italy narrate portions of the video as they retell their Earth reentry stories...
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