Hello! It's Ren here. Just a quick reminder, my answer is '***'. It'll be labeled next to the answer choices/options and I will put it beside them. If it is a paragraph or something like that, I will have a '(My answer)'.
1. What is Kinetic Energy?
A. Stored energy.
B. The energy of motion. ***
C. The energy of radiation.
D. Thermal energy.
2. A fisherman in a boat is drinking a cup of hot coffee. The large lake below his boat is full of cold water. Which statement is an accurate comparison of the lake water and the coffee?
A. The lake will have more total thermal energy, and the particles in the lake water will be moving faster.
B. The lake will have more total thermal energy, but the particles in the coffee will be moving faster. ***
C. The coffee will have more total thermal energy, and the particles in the coffee will be moving faster.
D. The coffee will have more total thermal energy, but the particles in the lake water will be moving faster.
3. Use the image to answer the question.
(Basically an image of Gallium melting in a persons hand, not too big, not too small.)
The gallium in the image is melting in the person's hand. Which changes will occur on a microscopic level?
A. The gallium atoms will gain kinetic energy.
B. The gallium atoms will increase in temperature.
C. The gallium atoms will be moving faster on average.
D. The gallium atoms will gain potential energy, moving freely from each other. ***
4. Which object will have particles with the highest average kinetic energy?
A. An iceberg at 0° C.
B. Water at 37°C in a glass.
C. A drop of water at 90°C. ***
D. Water at 40°C in a swimming pool.
5. Thermal energy is transferred to a substance. Which change can occur?
A. The particles will gain potential energy, but the kinetic energy of the particles will stay the same.
B. The particles can gain kinetic energy, but the potential energy of the particles will stay the same.
C. The particles can gain potential and kinetic energy. ***
D. The kinetic and potential energy of the particles will stay the same.
I'll check if these answers are right, give me one moment.
Turns out-They all were right, 100%!.
1. B. The energy of motion.
2. B. The lake will have more total thermal energy, but the particles in the coffee will be moving faster.
3. D. The gallium atoms will gain potential energy, moving freely from each other.
4. C. A drop of water at 90°C.
5. C. The particles can gain potential and kinetic energy.
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