Practice Phase Changes (Changes of State): Transformations by Energy - 3.2 | Module 6: Thermal Physics | IB Board Grade 9 Physics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is melting?

πŸ’‘ Hint: Think about ice turning to water.

Question 2

Easy

What happens during condensation?

πŸ’‘ Hint: Consider the steam on a mirror after a shower.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the process of a substance changing from solid to liquid called?

  • Boiling
  • Melting
  • Condensation

πŸ’‘ Hint: Think about ice turning into water.

Question 2

True or False: Latent heat is the energy required for temperature change.

  • True
  • False

πŸ’‘ Hint: Recall the definition of latent heat.

Solve 3 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A heat process involves boiling 2 kg of water at 100Β°C. If the latent heat of vaporization is 2,260,000 J/kg, how much energy is required to turn the water to steam?

πŸ’‘ Hint: Use the equation: heat = mass x latent heat.

Question 2

During a cooling process, 1 kg of steam at 100Β°C is condensed to water at the same temperature. How much latent heat is released?

πŸ’‘ Hint: Think about the process of condensation using latent heat.

Challenge and get performance evaluation