Physical Science Ch. 5-8

What is energy?

• Mass

• Speed

• Force

• The ability to do work

Which of the following is a form of mechanical energy

• Chemical Energy

• Radiant Energy

• Electrical Energy

• Kinetic Energy

Energy cannot be create or destroyed.

• True

• False

What does friction generally convert kinetic energy into?

• Chemical Energy

• Elastic Potential Energy

• Radiant Energy

• Thermal Energy

What does temperature measure?

• Heat

• Speed

• Chemical Energy

• Kinetic Energy

Something with a high specific heat would function well as a coolant.

• True

• False

Which form of thermal energy transfer requires contact?

• Conduction

• Convection

• Convention

• Radiation

Which form of thermal energy transfers fastest in a vacuum?

• Conduction

• Convection

• Confection

• Radiation

According to the Second law of thermodynamics what is true of energy?

• It cannot be created or destroyed

• It moves spontaneously from high concentration to low concentration

• It moves spontaneously from low concentration to high concentration

• It is transferred through contact

How is static electricity generated?

• Charges accumulate on an object

• Current is added to an object

• Electrons are removed

• An object moves through a fluid