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Eighth Grade (Grade 8) Physics Questions

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Grade 8 :: Simple Machines by PrangeC
Grade 8 :: Simple Machines by PrangeC
An object being lifted or moved by a machine is a:
  1. fulcrum
  2. load
  3. work
  4. force
  5. friction
Grade 8 :: Forces and Motion by DrWho
Grade 8 :: Waves and Sound by Occulus
Which best describes electromagnetic energy?
  1. moves electrons
  2. travels through space as waves
  3. forms chemical bonds
  4. generates electrical energy
Grade 8 :: Forces and Motion by jlovering
Grade 8 :: Waves and Sound by swaggyd
Grade 8 :: Forces and Motion by Angelaaaaa
What is gravity?
  1. Newtons first law
  2. the force that objects exert on each other because of their masses
  3. the downward pull on the Earth
  4. the friction that an object has put on it
Grade 8 :: Heat Transfer by aefrith
Grade 8 :: Simple Machines by sherrileag
Machine with a bar that pivots on a fixed point
  1. watt
  2. pulley
  3. wheel and axle
  4. lever
Grade 8 :: Waves and Sound by DrWho
Which of the following groups of electromagnetic waves is listed correctly in order of increasing frequency?
  1. visible light, gamma rays, X-rays
  2. X-rays, visible light, radio waves
  3. radio waves, visible light, X-rays
  4. radio waves, gamma rays, X-rays
Grade 8 :: Waves and Sound by LBeth
Grade 8 :: Simple Machines by sherrileag
Comparing a machine's work output with work input
  1. watt
  2. mechanical efficiency
  3. mechanical advantage
  4. joule
Grade 8 :: Simple Machines by sherrileag
Grade 8 :: Waves and Sound by LBeth
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