Understanding Work and Energy

What is non-mechanical energy?

• Energy due to motion or position

• Energy not related to motion or position

• Energy stored in springs

• Energy due to gravitational force

Which of the following is NOT a form of non-mechanical energy?

• Kinetic energy

• Thermal energy

• Chemical energy

• Electrical energy

How can we track mechanical energy?

• By measuring temperature

• By observing color changes

• By counting the number of particles

• By measuring mass, height, and speed

In the example of the truck, what happens to the mechanical energy when it stops?

• It is converted to thermal energy

• It is converted to potential energy

• It remains as kinetic energy

• It is destroyed

What is the primary source of chemical energy in a car?

• The tires

• The engine oil

• The octane gasoline

• The car's battery

What determines the temperature of an object?

• The color of the object

• The amount of thermal energy

• The size of the object

• The shape of the object

How is vibrational energy different from thermal energy?

• Thermal energy is due to object vibration

• Vibrational energy is due to particle motion

• Vibrational energy is due to object vibration

• Thermal energy is due to sound waves

What is the role of a dry cell in an electrical circuit?

• To establish an electric potential difference

• To provide light energy

• To convert sound energy

• To store mechanical energy

How can light energy be transformed?

• Into sound energy

• Into chemical energy

• Into electrical energy

• Into mechanical energy

What is the ultimate goal of studying energy?

• To ignore energy transformations

• To create energy

• To destroy energy

• To keep track of energy