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5 Written questions

5 Matching questions

  1. action forces
  2. refraction
  3. kinetic energy
  4. speed
  5. decibel
  1. a the energy an object has due to its motion
  2. b change of distance over time
  3. c The bending of a wave as it passes at an angle from one medium to another
  4. d forces that act in different objects in pairs
  5. e loundess scale for sounds

5 Multiple choice questions

  1. wave that needs a medium to travel through
  2. the variable that is measured in an experiment
  3. the process that occurs in sex cells (sperm and eggs) by which the number of chromosomes is reduced by half
  4. variable manipulated by the researcher
  5. change of speed over time

5 True/False questions

  1. heatthe unit of frequency


  2. wavelengththe distance between the crest of one wave and the crest of the next wave


  3. nucleic acidshave the blueprints for growth and development


  4. asexual reproductiona reproductive process that involves only one parent and produces offspring that are identical to the parent


  5. inertiathe tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force


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