Kinetic and Thermal energy quick check answers

1. What is kinetic energy?
a) thermal energy
b) the energy of motion
c) the energy of radiation
d) stored energy

2. A fisherman in a boat is drinking 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, but the particles in the coffee will be moving faster.
b) The coffee will have more total thermal energy, and the particles in the coffee will be moving faster.
c) The coffee will have more total thermal energy, but the particles in the lake water will be moving faster.
d) The lake will have more total thermal energy, and the particles in the lake water will be moving faster.

3. 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 gain potential energy, moving freely from each other.
c) The gallium atoms will increase in temperature.
d) The gallium atoms will be moving faster on average.

4. Which object will have particles with the highest average kinetic energy?
a) water at 37°C in a glass
b) water at 40°C in a swimming pool
c) a drop of water at 90°C
d) an iceberg at 0°C

5. Thermal energy is transferred to a substance. Which change can occur?
a) The kinetic and potential energy of the particles will stay the same.
b) The particles will gain potential energy, but the kinetic energy of the particles will stay the same.
c) The particles can gain potential and kinetic energy.
d) The particles can gain kinetic energy, but the potential energy of the particles will stay the same.

The correct answers are:
b
a
b
c
c
Trust me I just took this and these are 100% right for connexus

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  1. help is 100% correct! thank u so much!!!

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  2. 1.the energy of motion
    2. The lake will have more total thermal energy but that particles in the coffee will be moving faster
    3.the gallium atoms will gain potential energy, moving freely from each other.
    4. A drop of water at 90°C
    5. The particles can gain potential and kinetic energy.

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  3. trust me i am right :
    a
    d
    b
    d
    d

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  4. does anyone have the answers for the thermal energy unit test:(

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  5. lilly is right

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  6. hey, help please, thats the wrong answers the first post is 100% correct

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  7. Lilly is correct

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  8. help is wrong lilly is right, don't use helps answers!!!! trust me, I'm not a lier! (-; (:(:(:(:(:):):):):)

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  9. the order of the answers is random so Lilly is right exept for one of them but connexus stopped showing wich answers are right or wrong (at least htey dont show up for me) so idk wich one

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  10. All of Lilly's answers are right except number 2 and it is "the lake will have more total energy but the particles in the coffee will be moving".

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  11. The first post is wrong I got a 1/5 do not listen to the first post

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  12. lily is right

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  13. lily and the first post are correct

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  14. @Lily is 100% correct

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