Physics Unit 1 Quiz

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1. What is a U-Value?

  • A measure of heat loss.
  • A measure of the efficiency of a material.
  • A measure of how effective an insulator is.
  • A measure of how 'green' a material is.
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2. Which of the following is incorrect about sound waves?

  • They're perpendicular to the direction of travel and energy transfer.
  • They're parallel to the direction of travel and energy transfer.
  • They're longitudinal.
  • They're made of compressions and rarefactions.

3. What is the formula for specific heat capacity?

  • Energy = mass x specific heat capacity x change in temperature
  • Specific heat capacity = energy x mass x change in temperature
  • Energy = mass / specific heat capacity / weight
  • Change in temperature = mass / specific heat capacity x energy

4. Which of the following is true about refraction?

  • The angle of incidence is greater than the angle of refraction.
  • The angle of refraction is greater than 90 degrees.
  • The angle of incidence is less than the angle of refraction.
  • The angle of incidence is equal to the angle of refraction.

5. What does the amplitude of a sound wave affect?

  • The volume.
  • The direction of travel.
  • The pitch.
  • The length.

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