Virtual Lab #4Energy Forms and Changes Biology Questions
and Answers
Name: Lyndsey Brooks
Section Number: 20278
Date of Submission: 2/26/21
Instructions:
Please launch the simulation in the link below to help you answer the following questions.
Link:
https://phet.colorado.edu/en/simulation/energy-forms-and-changes
Under the Intro Tab
1. Is it possible to boil the water? Is it possible to freeze the water? (Make sure to attach the temperature
gauge so you have a guide.) What do you need to do to make these changes?
Yes to both. You can add heat or freeze.
2. Chill the water as much as possible- then add heat and observe. List below at least three things you
noticed (Make sure the energy symbols box is checked.)
The temperature rises quickly, the water stores the heat longer before evaporating it out, and it defrosts
quickly.
3. Add heat to the Iron and heat to the brick at the same time. Which one can hold more energy?
How/where do they lose their energy?
Iron can hold more energy and they both lose their energy by “evaporating” it through the side farthest from
the heat.
4. Add a heated up bit of iron to room temperature water. Describe in detail what happens below.
The water starts to boil and the temperature between the two level out.
5. Place the brick on top of the iron and add heat. Describe what is happening in at least three sentences.
The energy from the heat transfers into iron. The iron holds the energy and occasionally transfers it to the
brick. When the brick gets the energy it “evaporates” it out.
and Answers
Name: Lyndsey Brooks
Section Number: 20278
Date of Submission: 2/26/21
Instructions:
Please launch the simulation in the link below to help you answer the following questions.
Link:
https://phet.colorado.edu/en/simulation/energy-forms-and-changes
Under the Intro Tab
1. Is it possible to boil the water? Is it possible to freeze the water? (Make sure to attach the temperature
gauge so you have a guide.) What do you need to do to make these changes?
Yes to both. You can add heat or freeze.
2. Chill the water as much as possible- then add heat and observe. List below at least three things you
noticed (Make sure the energy symbols box is checked.)
The temperature rises quickly, the water stores the heat longer before evaporating it out, and it defrosts
quickly.
3. Add heat to the Iron and heat to the brick at the same time. Which one can hold more energy?
How/where do they lose their energy?
Iron can hold more energy and they both lose their energy by “evaporating” it through the side farthest from
the heat.
4. Add a heated up bit of iron to room temperature water. Describe in detail what happens below.
The water starts to boil and the temperature between the two level out.
5. Place the brick on top of the iron and add heat. Describe what is happening in at least three sentences.
The energy from the heat transfers into iron. The iron holds the energy and occasionally transfers it to the
brick. When the brick gets the energy it “evaporates” it out.
