In which case would the kinetic energy of particles be increasing?
1 point
Metal is cooled at 1,300°C.
Metal is heated from room temperature to 200°C.
The kinetic energy of particles would be increasing when metal is heated from room temperature to 200°C.
A teacher opens a window on a cold day. Which statement explains why the room starts to feel cooler?
1 point
Cold air is moving into the room from outside.
Air moves from the areas of higher temperature to areas of lower temperature.
Air moves from the areas of higher temperature to areas of lower temperature.
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 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 at the same speed in both states.
Other:
The particles will have more space between them as steam, but they will be moving at the same speed in both states.
The arrows in the pot represent______________.
1 point
Captionless Image
radiation
convection
To accurately answer the question, I would need to have a visual representation of the arrows in the pot.
An ice cube tray full of water is put into a freezer. The water loses thermal energy and maintains 0ºC to undergo a phase change from a liquid to a solid. Which energy change occurs in the particles in the water as it undergoes a phase change?
1 point
The potential energy decreases due to the tighter arrangement of the particles.
The potential energy decreases due to the increased motion of the particles.
The potential energy decreases due to the tighter arrangement of the particles.
A student records the temperature of two water samples. Other than the temperature, the water samples are the same. Which sample has the lowest kinetic energy? Sample A at 100.6 degrees C or Sample B at 31.4 degrees C?
1 point
Sample A
Sample B