Podcast
Questions and Answers
What happens when energy is transferred to a substance?
What happens when energy is transferred to a substance?
- The substance's volume decreases as its particles move closer together.
- The substance's temperature remains unchanged.
- The substance loses energy and the speed of its particles decreases.
- The substance gains energy and the speed of its particles increases. (correct)
Which of the following statements is true about cooling a substance?
Which of the following statements is true about cooling a substance?
- The substance's volume increases as its particles spread further apart.
- The substance gains energy, and its particles move faster.
- The substance's particles lose energy and move slower. (correct)
- The substance's temperature remains constant.
What is the relationship between the speed of particles and temperature?
What is the relationship between the speed of particles and temperature?
- The faster the particles move, the lower the temperature.
- The slower the particles move, the higher the temperature.
- The faster the particles move, the higher the temperature. (correct)
- There is no relationship between particle speed and temperature.
What happens to the volume of a substance when it is heated?
What happens to the volume of a substance when it is heated?
Which of the following statements is true about the particles themselves when a substance is cooled?
Which of the following statements is true about the particles themselves when a substance is cooled?
What happens to the collisions between particles when a substance is cooled?
What happens to the collisions between particles when a substance is cooled?
At what temperature can evaporation occur?
At what temperature can evaporation occur?
What is the main difference between evaporation and boiling?
What is the main difference between evaporation and boiling?
What is the role of air particles in evaporation?
What is the role of air particles in evaporation?
When a liquid is boiling, what happens to its temperature?
When a liquid is boiling, what happens to its temperature?
Which surface would experience faster evaporation of rubbing alcohol: a hand or a table?
Which surface would experience faster evaporation of rubbing alcohol: a hand or a table?