The kinetic energy of particles would be increasing in the case of "Metal is heated from room temperature to 200°C." As the temperature increases, the kinetic energy of the particles also increases.
In which case would the kinetic energy of particles be increasing? (1 point)
Metal is cooled at 1,300°C.
Metal is at room temperature, 37°C.
Metal is melted at 1,300°C.
Metal is heated from room temperature to 200°C.
11 answers
Water boils at 100°C and turns into steam. Which similarities or differences are there between water
at 100°C and steam at 100°C? (1 point)
The particles will have more space between them and will be moving at higher speeds as steam.
The particles will have more space between them as steam, but they will be moving at the same speed in
both states.
The particles will have more space between them as a liquid, but they will be moving faster as steam.
The particles will have more space between them as a liquid, but they will be moving at the same speed in
both states.
at 100°C and steam at 100°C? (1 point)
The particles will have more space between them and will be moving at higher speeds as steam.
The particles will have more space between them as steam, but they will be moving at the same speed in
both states.
The particles will have more space between them as a liquid, but they will be moving faster as steam.
The particles will have more space between them as a liquid, but they will be moving at the same speed in
both states.
The correct statement is: The particles will have more space between them and will be moving at higher speeds as steam.
At 100°C, water is in a liquid state, and when it boils and turns into steam at the same temperature, the particles have more space between them (as gases have greater spacing compared to liquids) and are moving faster due to the increased kinetic energy in the gas phase.
An ice cube tray full of water is put into a freezer. Which energy change occurs in the particles in the
water as it undergoes a phase change from a liquid to a solid?(1 point)
The potential energy increases due to the looser arrangement of the particles.
The potential energy increases due to the tighter arrangement of the particles.
The potential energy decreases due to the looser arrangement of the particles.
The potential energy decreases due to the tighter arrangement of the particles.
water as it undergoes a phase change from a liquid to a solid?(1 point)
The potential energy increases due to the looser arrangement of the particles.
The potential energy increases due to the tighter arrangement of the particles.
The potential energy decreases due to the looser arrangement of the particles.
The potential energy decreases due to the tighter arrangement of the particles.
The correct statement is: The potential energy decreases due to the tighter arrangement of the particles.
As water freezes and undergoes a phase change from a liquid to a solid (ice), the particles become more tightly packed in a regular structure, resulting in a decrease in potential energy.
An increase in thermal energy leads to _____(1 point)
an increase in heat and a decrease in kinetic energy until a phase change occurs.
a decrease in heat and a decrease in kinetic energy until a phase change occurs.
a decrease in heat and an increase in kinetic energy until a phase change occurs.
an increase in heat and an increase in kinetic energy until a phase change occurs.
an increase in heat and a decrease in kinetic energy until a phase change occurs.
a decrease in heat and a decrease in kinetic energy until a phase change occurs.
a decrease in heat and an increase in kinetic energy until a phase change occurs.
an increase in heat and an increase in kinetic energy until a phase change occurs.
The correct statement is: an increase in heat and an increase in kinetic energy until a phase change occurs.
As thermal energy increases, the temperature of the substance rises, leading to an increase in kinetic energy of the particles. This continues until a phase change occurs, at which point the thermal energy is used for the phase change rather than increasing the kinetic energy further.
A student wants to collect data during an experiment about the transfer of kinetic energy in a sample
of water and ice. Which tool will help her collect the necessary data?(1 point)
graduated cylinder
balance
meter stick
thermometer
of water and ice. Which tool will help her collect the necessary data?(1 point)
graduated cylinder
balance
meter stick
thermometer
The correct tool for collecting data on the transfer of kinetic energy in a sample of water and ice is a thermometer.
A thermometer will measure the temperature of both the ice and water, thus providing information on the kinetic energy of the particles, as temperature is directly related to the average kinetic energy of the particles in a substance.
Use the table to answer the question.
Sample Temperature (°C)
1 98.2
2 46.0
3 100.6
4 31.4
A student records the temperature of several water samples as shown in the table. Other than the
temperature, the water samples are the same. Which sample has the lowest kinetic energy?
(1 point)
1
3
4
2
Sample Temperature (°C)
1 98.2
2 46.0
3 100.6
4 31.4
A student records the temperature of several water samples as shown in the table. Other than the
temperature, the water samples are the same. Which sample has the lowest kinetic energy?
(1 point)
1
3
4
2
The sample with the lowest kinetic energy is 4 (31.4°C).
Kinetic energy of the particles in a substance is directly related to its temperature. Since sample 4 has the lowest temperature compared to the other samples, it will have the lowest kinetic energy.
1 answer