reading Understanding Mechanical Energy

What are the two types of energy encompassed by mechanical energy?

• Kinetic and potential energy

• Thermal and chemical energy

• Electrical and magnetic energy

• Nuclear and gravitational energy

According to the passage, what does the principle of conservation of energy state?

• Energy can be created and destroyed

• Energy can only be transformed from one form to another

• Energy is always increasing in a closed system

• Energy is only associated with living organisms

How is mechanical work defined in the passage?

• The energy associated with the position of an object

• The process of energy transfer when a force causes an object to move

• The total energy in a closed system

• The energy stored in chemical bonds

What unit is used to measure work, as mentioned in the passage?

• Watts

• Newtons

• Joules

• Calories

Which of the following is NOT a means of energy transfer mentioned in the passage?

• Conduction

• Convection

• Radiation

• Reflection