Energy

In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.

• conduction
• convection
• radiation

When you eat fruits and vegetables, chemical bonds are releasing stored energy, this is...

• a. thermal energy

• b. sound energy

• c. electrical energy

• d. chemical energy

a.  Energy stored in the nucleus of an atom.

• A. Sound Energy
• B. Potential Energy
• C. Nuclear Energy
• D. Thermal energy

What is thermodynamics?

• movement of heat
• it's magic
• measurement of heat
• none of them

Energy from light waves.

• Radiant Energy 
• Chemical Energy 
• Nuclear Energy 
• Radiation 

When is the potential energy the greatest in a roller coaster?

• a. at the bottom of the first hill
• b. at the top of the first hill
• c. at the top of the second hill
• d. at the bottom of the second hill

Where is the potential energy the greatest?

• A
• B
• C
• D

The Gulf Stream is a current that brings warm ocean water from the south to the north.

• conduction
• convection
• radiation

Which of the following is a conversion from light energy to chemical energy?

• a. turning on a stove to heat dinner
• b. turning on a lamp
• c. growing an apple tree
• d. making toast in a toaster

After an energy conversion, you end up with the same total amount of energy as the original amount of potential energy. Which of the following laws explains this rule?

• a. law of energy changes
• b. law of conservation of energy
• c. law of power and energy
• d. law of potential energy