Which experimental setup would let a student investigate the connection between kinetic energy and temperature?
placing one drop of food coloring in a cup with 50 mL of water at 10°C; placing two drops of food coloring in a second cup with 100 mL of water at 40°C
Placing one drop of food coloring in a cup with 50 mL of water at 10°C; placing two drops of food coloring in a second cup with 50 mL of water at 10°C
The correct experimental setup would be placing one drop of food coloring in a cup with 50 mL of water at 10°C; placing two drops of food coloring in a second cup with 100 mL of water at 40°C. This setup allows the student to compare the effects of different temperatures on the movement and spreading of the food coloring, which is related to the kinetic energy and thus the temperature of the water.
The experimental setup that would allow a student to investigate the connection between kinetic energy and temperature is:
Placing one drop of food coloring in a cup with 50 mL of water at 10°C; placing two drops of food coloring in a second cup with 100 mL of water at 40°C.
By comparing the rate at which the food coloring spreads in each cup, the student can observe the effect of temperature on kinetic energy. The higher temperature in the second cup should result in more kinetic energy and faster diffusion of the food coloring, compared to the first cup with lower temperature.
The experimental setup that would allow a student to investigate the connection between kinetic energy and temperature is the second option:
Placing one drop of food coloring in a cup with 50 mL of water at 10°C; placing two drops of food coloring in a second cup with 100 mL of water at 40°C.
In this setup, the independent variable is the temperature of the water, while the dependent variable is the kinetic energy of the food coloring molecules, which is represented by the movement and spread of the food coloring in the water. By using different temperatures (10°C and 40°C) and observing how the food coloring molecules move and disperse in the water, the student can draw conclusions about the relationship between temperature and kinetic energy.