The kinetic energy of particles would be increasing in the case where "Metal is heated from room temperature to 200°C." Heating increases the kinetic energy of particles, causing them to move more vigorously.
In which case would the kinetic energy of particles be increasing? (1 point)
Responses
Metal is cooled at 1,300°C.
Metal is cooled at 1,300°C.
Metal is at room temperature, 37°C.
Metal is at room temperature, 37°C.
Metal is melted at 1,300°C.
Metal is melted at 1,300°C.
Metal is heated from room temperature to 200°C.
7 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)
Responses
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 and will be moving at higher speeds 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 particles will have more space between them as a liquid, but they will be moving at the same speed in both states.
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 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.
Responses
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 and will be moving at higher speeds 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 particles will have more space between them as a liquid, but they will be moving at the same speed in both states.
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 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 correct response is: The particles will have more space between them and will be moving at higher speeds as steam.
At 100°C, water exists as a liquid, and when it boils into steam at the same temperature, the particles become more spaced apart and move with greater kinetic energy, resulting in higher speeds.
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)
Responses
The potential energy increases due to the looser arrangement of the particles.
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 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 looser arrangement of the particles.
The potential energy decreases due to the tighter arrangement of the particles.
Responses
The potential energy increases due to the looser arrangement of the particles.
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 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 looser arrangement of the particles.
The potential energy decreases due to the tighter arrangement of the particles.
The correct response is: The potential energy decreases due to the tighter arrangement of the particles.
As water freezes and transitions from a liquid to a solid (ice), the particles become more tightly arranged in a fixed structure, which decreases their potential energy.
An increase in thermal energy leads to _____(1 point)
Responses
an increase in heat and a decrease in kinetic energy until a phase change occurs.
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.
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 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.
Responses
an increase in heat and a decrease in kinetic energy until a phase change occurs.
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.
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 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.
The correct response is: an increase in heat and an increase in kinetic energy until a phase change occurs.
As thermal energy increases, the heat content rises, causing an increase in the kinetic energy of the particles, which leads to increased movement and temperature until a phase change occurs.
58 answers