Energy Transformations

What is the ability to do work?

• power
• force
• energy
• respiration

What type of energy does a moving ball have?

• thermal
• potential
• kinetic
• electric

What type of energy does a pitcher on a mound have?

• thermal
• kinetic
• acoustic
• chemical

When holding something in the air, what energy does it have? What does it change to when released?

• thermal to kinetic
• potential to kinetic
• kinetic to potential
• mechanical to chemical

The universe is an example of a(n)

• Open system
• Closed system
• Isolated System
• Simple Machine

According to the Law of Conservation of Energy, energy

• can be created and destroyed.
• cannot be created or destroyed.
• can take on many forms.
• is always converted to heat.

A closed system

• does NOT exchange matter OR energy
• exchanges matter NOT energy
• exchanges energy AND matter
• exchanges energy NOT matter

An open system

• exchanges matter AND energy
• exchanges matter NOT energy
• exchanges energy NOT matter
• does not exchange matter or energy

An isolated system

• exchanges matter and energy
• exchanges matter NOT energy
• exchanges energy NOT matter
• does not exchange matter or energy

What is the primary SOURCE of the sun's energy?

• Nuclear fission
• Nuclear fusion
• chemical energy
• thermal energy