Energy Unit~ Chemical Energy

Energy that is stored in chemical bonds based on the position of the bonds and is then released as thermal energy through chemical reactions is 

• thermal energy 
• chemical kinetic energy
•  Charcoal is burned in a barbecue pit.
• electrical potential energy

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

• Coal is burned to boil wate
• Food is digested and used to regulate body temperature.
  Food is digested and used to regulate body temperature.
•  Charcoal is burned in a barbeque pit.
• all of the above.

What factors determine the amount of chemical potential energy that an object has? 

• Mass of molecules and the position of chemical bonds
• Speed and mass of the molecules 
• The type of molecules present and their ability to catch fire
• Temperature of the molecules and position of the chemical bonds

Which simple energy conversions are taking place when you use gasoline to make the car move? 

• chemical, thermal, electrical, sound, kinetic
• kinetic, thermal, light, chemical 
• thermal, kinetic, chemical, sound, electrical
• chemical, nuclear, thermal, sound

The Law of Conservation of Energy states that__________

• The overall amount of energy remains the same but some energy is completely destroyed during energy transformations
• The overall amount of energy remains the same energy cannot be created or destroyed.
• The overall amount of energy can change depending on the energy conversions that take place. 
• The overall amount of energy can change because sometimes energy is lost to the environment 

Which of these is not a source of chemical energy?

• Spaghetti
• The Sun
• Battery
• Petroleum

What type of energy can chemical transform into?

• Heat
• Light
• Electrical
• All of the above

When you lit a matchstick, the chemical bonds in the top of the match are

• Combined with oxygen
• Stay the same
• Broken

A car produces chemical energy to use it as

• Mechanical and Heat 
• Light
• No energy is created

What is energy?

• The ability to cause a change
• A force
• Electricity
• The ability to transform work