NASA | Afterschool Universe: Supernova Can Crunch

The video tutorial demonstrates an experiment using a soda can to illustrate the concept of equilibrium. By heating water in a can and then cooling it rapidly, the can implodes, similar to how a star collapses when fusion stops. The experiment highlights the balance between internal and external pressures, drawing an analogy to the balance of forces in a star's lifecycle.

What is the purpose of placing a small amount of water inside the soda can before heating it?

• To clean the can

• To create steam for the experiment

• To cool the can

• To add weight to the can

Why is it important to quickly flip the can into the ice water?

• To ensure the can implodes

• To make the water boil faster

• To keep the can upright

• To prevent the can from overheating

What happens to the air pressure inside the can when the steam turns back into liquid water?

• It remains the same

• It fluctuates

• It increases

• It decreases

In the context of a star, what balances the energy from fusion pushing outwards?

• Magnetic fields

• Radiation pressure

• Gravity

• Electromagnetic forces

What causes a star to collapse at the end of its life?

• Loss of magnetic fields

• Excessive radiation

• End of fusion reactions

• Increase in temperature