what has the most potential energy rating (lowest to highest)

Question

solid
liquids
gas

Answer 1

In general, the potential energy of a substance increases as it transitions from solid to liquid to gas. This is due to the arrangement and interaction of molecules in different states of matter. Here's the ranking from lowest to highest potential energy:

1. Solid: Molecules are closely packed together in a fixed arrangement, resulting in lower potential energy.
2. Liquid: Molecules are still close together but can move past each other, allowing for more potential energy than in solids.
3. Gas: Molecules are far apart and move freely, providing the highest potential energy among the three states.

So the order is: solid < liquid < gas.

Answer 2

Sample Initial temperature (*C) Final Temperature (*C) Amount of ice added (grams)
1 20.2 16.0 60
2 48.1 44.2 59.9
3 6.1 1.0 71.1
4 14.6 3.3 122.6
A student adds ice to several samples of water. The results are shown in the table. Which conclusion can be drawn from the results?
As the temperature increases, the kinetic energy of the water molecules decreases.
As the amount of ice added decreases, the temperature decreases.
As the temperature decreases, the kinetic energy of the sample increases.
As the amount of ice added increases, the change in temperature increases.

Answer 3

To analyze the conclusions presented from your samples, let’s consider the observations:

1. Sample 1: Dropped from 20.2 °C to 16.0 °C with 60g of ice.
2. Sample 2: Dropped from 48.1 °C to 44.2 °C with 59.9g of ice.
3. Sample 3: Dropped from 6.1 °C to 1.0 °C with 71.1g of ice.
4. Sample 4: Dropped from 14.6 °C to 3.3 °C with 122.6g of ice.

Now let’s evaluate each statement:

1. As the temperature increases, the kinetic energy of the water molecules decreases.

   • This statement is incorrect. Generally, as temperature increases, the kinetic energy of the molecules also increases.

2. As the amount of ice added decreases, the temperature decreases.

   • This statement is not supported by the data. The samples show that despite varying amounts of ice, the temperature changes don't consistently reflect this (e.g., while Sample 1 has the least ice and a temperature drop, Sample 4 has more ice and a larger drop).

3. As the temperature decreases, the kinetic energy of the sample increases.

   • This statement is incorrect. As temperature decreases, the kinetic energy of water molecules actually decreases.

4. As the amount of ice added increases, the change in temperature increases.

   • This statement is the most consistent with the data observed. In Sample 4, with the most ice added, the temperature change is also the largest (11.3 °C), and such trends can be inferred from the data.

Conclusion: The most valid conclusion drawn from the data is that as the amount of ice added increases, the change in temperature increases.

Answer 4

A student adds different amounts of ice to four samples of water and records the change in temperature after 30 minutes. What is the independent variable in this investigation? amount of time
initial temperature
final temperature
ice cubes added

Answer 5

In the described investigation, the independent variable is the ice cubes added. The independent variable is the factor that the experimenter changes or manipulates to observe how it affects the dependent variable, which in this case is the change in temperature of the water.

The other options (amount of time, initial temperature, and final temperature) are not manipulated in the same way:

• Amount of time is kept constant (30 minutes).
• Initial temperature is a starting condition rather than a variable being tested.
• Final temperature is the outcome measured after the ice has been added.

Thus, the correct answer is ice cubes added.

Answer 6

A student conducts an investigation to show the relationship between temperature and kinetic energy in one phase of matter. What would the graph of this relationship look like?
an S-shaped curve
a diagonal line
a horizontal line
a U-shaped curve

Answer 7

In the context of the relationship between temperature and kinetic energy in a single phase of matter (for example, a solid, liquid, or gas), the graph would typically depict a linear relationship. As temperature increases, the kinetic energy of the particles also increases.

Therefore, the correct representation of this relationship would be a diagonal line that slopes upwards to the right. This indicates that as temperature (on the x-axis) increases, kinetic energy (on the y-axis) also increases proportionally.

So the answer is a diagonal line.