Podcast
Questions and Answers
What causes the particles in the bigger balloon to have longer arrows in the model?
What causes the particles in the bigger balloon to have longer arrows in the model?
- Temperature decrease
- Gain in energy (correct)
- Loss of energy
- Volume decrease
In what direction do gaseous atoms/molecules travel until they collide with each other or an object?
In what direction do gaseous atoms/molecules travel until they collide with each other or an object?
- In straight lines (correct)
- In spiral motions
- In circular paths
- In random patterns
Which activity demonstrates the principle of evaporation?
Which activity demonstrates the principle of evaporation?
- Balloon in liquid nitrogen
- Drop of water on a desk (correct)
- Blue & yellow food coloring in hot water
- Boiling water
What happens to the volume of the balloon when its particles gain energy?
What happens to the volume of the balloon when its particles gain energy?
How do gaseous particles travel if the gas is an odor and we are able to detect it?
How do gaseous particles travel if the gas is an odor and we are able to detect it?
What happens to a substance when energy is transferred to it?
What happens to a substance when energy is transferred to it?
How does cooling a substance affect the speed of its atoms/molecules?
How does cooling a substance affect the speed of its atoms/molecules?
What does a higher temperature indicate about the speed of atoms/molecules?
What does a higher temperature indicate about the speed of atoms/molecules?
How do atoms/molecules behave when a substance is warmed?
How do atoms/molecules behave when a substance is warmed?
What happens to the volume of a substance when it is cooled?
What happens to the volume of a substance when it is cooled?
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