13.1.6. Basic Conservation Laws

Try these first

1. 1.

   Define mass conservation in your own words.

   Hint

   Think about what happens to mass in a closed container.

2. 2.

   What happens to energy in a closed system?

   Hint

   Remember the example of energy conversion in machines.

3. 3.

   Is mass conserved in a closed system?

   • True
   • False

   Hint

   Think about an unsealed and sealed container.

4. 4.

   What does momentum conservation state?

   Hint

   Consider the formula relating force and momentum.

5. 5.

   A closed loop system continuously pumps water in and out but loses some volume due to leaks. How does mass conservation apply in this scenario?

   Hint

   Think about how inflow balances outflow and leaks.

6. 6.

   Consider a turbine generating energy from flowing water. If the water’s speed increases, what happens to the energy your system is producing? Discuss this in the context of energy conservation.

   Hint

   Recall how energy changes form as it moves through systems.