Thermal Energy Design Challenge

A student is designing a device to absorb thermal energy using a chemical process. Which of the following steps should the student prioritize to ensure the device functions effectively?

• Select materials that are good conductors of heat.

• Choose a chemical reaction that is endothermic.

• Design the device to be as small as possible.

• Use a chemical reaction that releases heat.

Tags

NGSS.MS-PS1-6

During the testing phase of a thermal energy device, the temperature change was less than expected. What could be a strategic approach to modify the device for better performance?

• Increase the amount of reactants used in the chemical process.

• Decrease the surface area of the device.

• Use a chemical reaction that is slower.

• Reduce the insulation around the device.

Tags

NGSS.MS-PS1-6

NGSS.MS-PS3-3

A group of students is tasked with constructing a device that releases thermal energy. Which evidence-based reasoning should they use to select the appropriate chemical reaction?

• The reaction should have a high activation energy.

• The reaction should be exothermic with a significant energy release.

• The reaction should produce a gas as a byproduct.

• The reaction should be reversible.

Tags

NGSS.MS-PS1-6

NGSS.MS-PS3-3

After constructing a device to absorb thermal energy, a student observes that the device is not absorbing as much energy as predicted. What reasoning could explain this discrepancy?

• The device is too large, causing energy loss.

• The chemical reaction is not fully endothermic.

• The device is made of insulating materials.

• The reaction rate is too fast.

Tags

NGSS.MS-PS1-6

NGSS.MS-PS3-3

In planning a design project for a thermal energy device, which factor should be strategically considered to ensure the device's efficiency?

• The color of the device.

• The specific heat capacity of the materials used.

• The cost of the materials.

• The size of the device.

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A student needs to modify a device that releases thermal energy to increase its efficiency. Which modification would be most effective based on strategic planning?

• Use a catalyst to speed up the reaction.

• Increase the insulation around the device.

• Decrease the amount of reactants.

• Use a reaction with a lower energy release.

Tags

NGSS.MS-PS1-6

When testing a device designed to absorb thermal energy, the students notice that the device's temperature remains constant. What strategic reasoning could explain this observation?

• The device is perfectly insulated.

• The chemical reaction has reached equilibrium.

• The device is too small.

• The reaction is exothermic instead of endothermic.

Tags

NGSS.MS-PS1-6

NGSS.MS-PS3-3

NGSS.MS-PS3-4

In evaluating the success of a thermal energy device, which evidence should be used to determine if the device meets the design criteria?

• The device's color and shape.

• The amount of thermal energy absorbed or released.

• The time taken to construct the device.

• The cost of the materials used.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which surface would absorb more energy?

• ice

• ocean

The transfer of thermal energy from one object to another because of a temperature difference between them.

• Thermal Energy

• Heat

• Chemical Potential Energy

• System

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4