Exploring Thermal Energy Transfer Concepts

Why did the teacher decide to make a video of the demo lab?

• To provide a different type of learning experience

• To save time during the class

• To make it easier for students with internet issues to follow along

• To avoid doing the lab in person

What is thermal energy?

• The energy stored in an object

• The total energy of all the moving molecules in an object

• The potential energy of an object

• The energy that an object emits as light

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following is NOT a way that heat transfers?

• Convection

• Conduction

• Reflection

• Radiation

What is the purpose of a hypothesis in a scientific experiment?

• To provide a summary of the experiment

• To predict the outcome of the experiment

• To list the materials needed

• To describe the procedure

What is the initial temperature of the cold water in the experiment?

• 15 degrees Celsius

• 30 degrees Celsius

• 25 degrees Celsius

• 20 degrees Celsius

What happens to molecules during thermal expansion?

• They get larger

• They move closer together

• They move further apart

• They change state

Tags

NGSS.MS-PS1-4

Why is it important not to put the thermometer at the bottom of the can?

• To avoid conduction effects

• To measure the average temperature of the water

• To avoid measuring the temperature of the can

• To prevent the thermometer from breaking

At minute five, what was the temperature of the warm water?

• 60 degrees Celsius

• 45 degrees Celsius

• 28 degrees Celsius

• 31 degrees Celsius

What is the significance of energy loss in the experiment?

• It shows that energy can be destroyed

• It indicates an error in the experiment

• It demonstrates energy waste to the environment

• It proves the hypothesis wrong

Tags

NGSS.MS-PS3-5

What should you do after plotting the data on the graph?

• Add more data points

• Connect the points with lines

• Leave the graph as it is

• Erase any incorrect points