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?(1 point)

The correct answer is: The lake will have more total thermal energy, but the particles in the coffee will be moving faster.

Use the image to answer the question.

A photo shows a piece of gallium melting in someone’s hand.

The gallium in the image is melting in the person’s hand. Which changes will occur on a microscopic level?

On a microscopic level, the particles in the gallium will begin to move more rapidly as it melts. The solid arrangement of particles will start to break down as they gain more kinetic energy. Ultimately, the particles will rearrange themselves into a liquid state, with the individual particles moving more freely and having more space between them compared to when the gallium was in its solid state.

Kinetic and Thermal Energy Quick Check
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Question
Use the image to answer the question.

A photo shows a piece of gallium melting in someone’s hand.

The gallium in the image is melting in the person’s hand. Which changes will occur on a microscopic level?

(1 point)
Responses

The gallium atoms will gain kinetic energy.
The gallium atoms will gain kinetic energy.

The gallium atoms will increase in temperature.
The gallium atoms will increase in temperature.

The gallium atoms will be moving faster on average.
The gallium atoms will be moving faster on average.

The gallium atoms will gain potential energy, moving freely from each other.

The correct answer is: The gallium atoms will be moving faster on average.

hich object will have particles with the highest average kinetic energy?(1 point)
Responses

an iceberg at 0°C
an iceberg at 0°C

a drop of water at 90°C
a drop of water at 90°C

water at 37°C in a glass
water at 37°C in a glass

water at 40°C in a swimming pool
water at 40°C in a swimming pool

The correct answer is: a drop of water at 90°C.

Thermal energy is transferred to a substance. Which change can occur?(1 point)
Responses

The particles will gain potential energy, but the kinetic energy of the particles will stay the same.
The particles will gain potential energy, but the kinetic energy of the particles will stay the same.

The particles can gain potential and kinetic energy.
The particles can gain potential and kinetic energy.

The kinetic and potential energy of the particles will stay the same.
The kinetic and potential energy of the particles will stay the same.

The particles can gain kinetic energy, but the potential energy of the particles will stay the same.
The particles can gain kinetic energy, but the potential energy of the particles will stay the same.

The correct answer is: The particles can gain potential and kinetic energy.

To determine the accurate comparison of the lake water and the coffee, we need to look at the concept of thermal energy.

Thermal energy refers to the total energy contained within an object or substance due to the movement of its particles. It is influenced by both the temperature and the number of particles present. When comparing two substances, the one with more thermal energy has a higher total energy content.

In this scenario, we have a fisherman in a boat drinking hot coffee while being surrounded by a large lake full of cold water. The coffee is warmer than the lake water, so it has a higher temperature. Therefore, it is safe to say that the coffee will have more total thermal energy than the lake water.

As for the comparison of the particle movement, we need to consider the relationship between temperature and particle motion. In general, an increase in temperature results in an increase in the speed and kinetic energy of the particles.

Since the coffee is hotter than the lake water, the particles in the coffee will be moving faster than the particles in the lake water. So, the statement "The coffee will have more total thermal energy, and the particles in the coffee will be moving faster" is the accurate comparison of the lake water and the coffee.

For anyone who wants know if the bot is correct, it is except for 5 which is.

A5. The particles can gain Kinetic energy, but the potential energy of the particles will stay the same.

It 100% correct

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