Liquid water boils at 100°C and undergoes a physical change as it turns into steam (gas). Which statement below is true regarding water in these two states? (as a liquid and as a gas)
particles in steam vs. particles in liquid water at 100 degrees C
(1 point)
Responses
The particles will have more space between them as a liquid, and they will be moving faster as a liquid at 100°C.
The particles will have more space between them as a liquid, but they will be moving faster as steam at 100°C
The particles will have more space between them as steam, and they will be moving at the same speed in both states at 100°C.
The particles will have more space between them as a liquid, and they will be moving at the same speed in both states at 100°C.
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The correct statement is: The particles will have more space between them as a gas (steam), and they will be moving faster as a gas (steam) at 100°C.
What does an increase in thermal energy lead to?
Temperature is a measure of the average kinetic energy of the particles n an object due to their random motions
(1 point)
Responses
an increase in heat and a decrease in kinetic energy until a phase change occurs.
an increase in heat and an increase in kinetic energy until a phase change occurs.
a decrease in heat and an increase in kinetic energy until a phase change occurs.
a decrease in heat and a decrease in kinetic energy until a phase change occurs.
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The correct statement is: an increase in heat and an increase in kinetic energy until a phase change occurs.
A student wants to collect data during an experiment about the transfer of kinetic energy in a sample of water and ice. Which scientific tool will help the student collect the necessary data?
Thermometer in beaker of ice
(1 point)
Responses
balance
meterstick
thermometer
graduated cylinder
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The correct tool for collecting data about the transfer of kinetic energy in a sample of water and ice is a thermometer.
A student uses a thermometer to record the temperature of several water samples as shown in the data table and image below. Other than the temperature, the water samples are the same. Which water sample below has the LOWEST kinetic energy?
-Water Sample 1 = 98.2 degrees C
-Water Sample 2 = 46 degrees C
-Water Sample 3 = 100.6 degrees C
-Water Sample 4 = 31.4 degrees C
(1 point)
Responses
Water sample 1 at 98.2 °C has the lowest kinetic energy.
Water sample 2 at 46.0 °C has the lowest kinetic energy.
Water sample 3 at 100.6 °C has the lowest kinetic energy.
Water sample 4 at 31.4 °C has the lowest kinetic energy.
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The water sample with the lowest kinetic energy is Water sample 4 at 31.4 °C.
Use the picture to complete the statement: The arrows in the pot of water represent heat transfer by ____________________.
water being heated in a pot on the stove
(1 point)
Responses
convection
conduction
radiation
waves
The arrows in the pot of water represent heat transfer by convection.
7 of 107 of 10 Items
Question
A student uses a thermometer and takes the temperature of a bottle of liquid water and a tub filled with ice. The student then places the bottle of liquid water into the tub of ice. After 15 minutes, which of the following best describes what happens to the temperature of each?
-Tub of ice starts at 2 degrees C and ends at 8 degrees C.
-Bottle of water starts at 15 degrees C and ends at ? decrees C
(1 point)
Responses
The temperature of the ice increases, while the temperature of the water decreases
The temperature of the ice decreases, while the temperature of the water increases
Both the bottle and the ice stay the same temperature
The temperature of both the ice and water decrease.