Chapter 6: Work & Energy
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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What is power measured in?
Watts 1 watt= 1J done in 1s
If you double the speed with KE you have how much more energy?
4 times
Lever, pulley, wheel&arm, axel, incline plane, wedge, and screw are all what?
Simple Machines
For work to be done what has to occur?
Force and movement
What are the sources of energy?
Sunlight, Nuclear, and Geothermal energy
What form of energy does photosynthesis, solar and wind energy, as well as fossil fuels come from?
Sunlight
What are the two main forms of mechanical energy?
Potential and Kinetic
If a car is twice as large as another was lifted how much potential energy would it have?
Twice as much
If a car speeds up 4 times as fast as it was going how much kinetic energy does it now have?
16 times as much
Can a machine multiply input force, distance, or energy?
It can multiply input force and distance but not energy.
What is the source of geothermal energy?
Uranium found in the earth.