As the glass of water was placed in the freezer, the temperature of the water decreased, leading to a reduction in its thermal energy. Consequently, the kinetic energy of the water molecules also decreased, causing them to move more slowly until they finally formed a solid as the water froze. This process illustrates how heat is transferred away from the water, resulting in its transition from a liquid state to a solid state at lower temperatures.
You fill a glass with room temperature water from the sink and then place it in the freezer. After a few hours, you take the glass out and the water is now a solid. In two to three sentences explain what happened to the water in the glass as the temperature decreased. Key words to include for full points: kinetic energy, thermal energy, temperature, and heat. (4 points)
9 answers
make it like a 8 grader wrote it
When you put the glass of room temperature water in the freezer, the temperature of the water starts to go down. As it gets colder, the thermal energy decreases, which makes the water molecules slow down and lose kinetic energy. Eventually, the water freezes into a solid because it loses heat to the colder air in the freezer.
A graduated cylinder contains 50 mL of water. You carefully place a rock into the cylinder, causing the water level to rise to 70 mL. If the mass of the rock is 100 grams, explain how to calculate the density of the rock in two to four sentences. Describe each step of the process and provide the final density value for full points. You may write your answer in complete sentences or as a numbered/bulleted list but you must explain all steps for full points.
To calculate the density of the rock, follow these steps:
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Determine the volume of the rock: When you placed the rock in the graduated cylinder, the water level rose from 50 mL to 70 mL. The volume of the rock can be found by subtracting the initial water level from the new level, which is 70 mL - 50 mL = 20 mL.
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Use the mass of the rock: The mass of the rock is given as 100 grams.
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Calculate the density: Density is calculated using the formula: Density = Mass / Volume. Using the mass and volume, the density of the rock is 100 grams / 20 mL = 5 grams per mL.
Hence, the final density of the rock is 5 grams per mL.
and make it with words
To calculate the density of the rock, first, you need to find the volume of the rock. When you placed the rock in the graduated cylinder, the water level rose from 50 mL to 70 mL, which means the volume of the rock is 20 mL because you subtract the original water level from the new level.
Next, you'll use the mass of the rock, which is 100 grams. Density is calculated using the formula density equals mass divided by volume. So, you take the mass of the rock, 100 grams, and divide it by its volume, 20 mL. This gives you a density of 5 grams per mL. Therefore, the final density of the rock is 5 grams per mL.
now make it like a 8 grader wrote it
To find the density of the rock, you start by figuring out its volume. When you put the rock into the graduated cylinder, the water level went from 50 mL to 70 mL, so the rock displaced 20 mL of water.
Then, you need the mass of the rock, which is 100 grams. Density is found by using the formula: density equals mass divided by volume. So, you take the mass (100 grams) and divide it by the volume (20 mL). This means the density of the rock is 5 grams per mL. So, the final answer is that the density of the rock is 5 grams per mL.
1 answer