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Samaira needs to rent some tents for an outdoor family reunion in July. What is the best type of tent for Samaira to rent so that her family members are protected from the heat of the Sun?
In which scenario does radiation occur?
Is thermal energy being transferred from the metal pan to the eggs by radiation in this image? Why or why not?
No, thermal energy is being transferred from the metal pan to the eggs by conduction, not radiation. Conduction is the transfer of heat through direct contact between two objects, such as the pan and the eggs. Radiation involves the transfer of energy through electromagnetic waves and does not require direct contact.
What did you include in your response? Check all that apply.No, thermal energy is not being transferred from the metal pan to the eggs by radiation.The eggs are in direct contact with the metal pan. Thermal energy is being transferred by conduction.Radiation transfers thermal energy by electromagnetic waves.Radiation does not transfer thermal energy by direct contact.
Which material would result in the greatest amount of energy transfer?
Click the “step” button on the simulation to observe the energy at different points on the roller coaster ride. Use the information from the pie chart in the simulation to complete the sentences. Kinetic energy is greatest at . Potential energy is greatest at . Kinetic energy decreases while potential energy increases between steps .
Which chart comes closest to the relationship between kinetic energy and potential energy at point 6?
Explain why the roller coaster’s potential energy is greater at point 1 than at point 4.
Gravitational potential energy depends on the height of the object. Since point 1 is higher than point 4, the roller coaster has more potential energy at point 1 than at point 4.
Taro stated that when someone hits a golf ball with a club, the amount of energy the ball has changes, the amount of energy that the club has changes, and the total energy of the system that includes the ball and the club increases. Which best explains Taro’s error?
As the average kinetic energy of a substance increases, the internal energy , and so its thermal energy . As the thermal energy of a substance increases, the temperature .
Water boils at 100 .
Water freezes at 0 [___].
A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to rise?
Sample Response: The water is cooler than the sand because it has a higher specific heat value. This means that it takes longer for the water to increase in temperature, making it feel cooler than the sand, which warms up more quickly. What did you include in your response? Check all that apply.The water has a higher specific heat value.It takes longer for the water to increase in temperature.The sand has a lower specific heat value.It takes less time for the sand to increase in temperature.
A burner on a stove produces
✔ warmer thancooler thanthe same temperature as
Sample Response: A wooden spoon will prevent the person’s hand from burning because wood is an insulator. An insulator slows the transfer of thermal energy so that very little thermal energy from the hot liquid will transfer to the person’s hand. What did you include in your response? Check all that apply.A wooden spoon will prevent the person’s hand from burning.Wood is an insulator.An insulator slows the transfer of thermal energy.The wooden spoon will transfer very little thermal energy to th
Sample Response: The piece of cheese melts when it’s placed on the hamburger because conduction occurs. The hamburger is warmer than the cheese, so thermal energy is transferred from the hamburger to the cheese, causing it to melt. What did you include in your response? Check all that apply.The piece of cheese melts when it’s placed on the hamburger because conduction occurs.The hamburger is warmer than the piece of cheese.Thermal energy is transferred from the hamburger to the piece of cheese.
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