Heat and Particle Speed Quiz
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Questions and Answers

What happens to the speed of particles when a substance is heated?

  • The speed of particles fluctuates randomly
  • The speed of particles decreases
  • The speed of particles remains the same
  • The speed of particles increases (correct)

    • What is the relationship between particle speed and temperature?

  • Temperature is inversely proportional to particle speed
  • Temperature is directly proportional to particle speed (correct)
  • Temperature and particle speed have a complex, non-linear relationship
  • Temperature is independent of particle speed

    • What happens to the volume of a substance when it is heated?

  • The volume remains constant
  • The volume increases (correct)
  • The volume changes unpredictably
  • The volume decreases

    • What happens to the distance between particles when a substance is cooled?

    <p>The distance between particles decreases</p> Signup and view all the answers

    How do gaseous particles move?

    <p>Gaseous particles move in straight lines until they collide</p> Signup and view all the answers

    In which direction do gaseous particles travel?

    <p>Gaseous particles travel in all directions</p> Signup and view all the answers

    What is the main reason that a gas can be detected by smell?

    <p>The gas particles travel through the air and reach the nose, allowing detection</p> Signup and view all the answers

    According to the models provided, what happens to the temperature and volume of the balloon when the particles are moving faster?

    <p>The temperature and volume both increase</p> Signup and view all the answers

    What is the main difference between evaporation and boiling?

    <p>Evaporation occurs at the surface, while boiling occurs throughout the liquid</p> Signup and view all the answers

    What is the main reason that a drop of rubbing alcohol evaporates faster on your hand than on a table?

    <p>The hand is warmer than the table, providing more energy for the alcohol to evaporate</p> Signup and view all the answers

    What happens to the gas particles during the process of condensation?

    <p>The gas particles slow down and become a liquid</p> Signup and view all the answers

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