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Eighth Grade (Grade 8) Physics Questions

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Grade 8 Simple Machines
Grade 8 Simple Machines
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
Grade 8 Waves and Sound
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
Grade 8 Forces and Motion
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
Grade 8 Waves and Sound
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
Grade 8 Simple Machines
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
Which type of wave is shown in the image?
Water Wave Speed - Bird
  1. seismic
  2. transverse
  3. longitudinal
  4. compression
Grade 8 Waves and Sound
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