Energy

Feeling heat from a campfire

• Conduction

• Convection

• Radiation

A ceiling fan forcing the warm air downward

• Conduction

• Convection

• Radiation

Heat from the hood of a car when you touch it

• Conduction

• Convection

• Radiation

What is another name for thermal energy?

• thermal

• heat

• sound

• light

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• Chemical > Light > Electrical

• Mechanical > Sound > Light

• Thermal > Solar > Electrical

• Electrical > Thermal > Light

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• Chemical > Light > Electrical

• Electrical > Light > Chemical

• Light > Electrical > Chemcial

• Chemical > Electrical > Light

Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun's energy

• Chemical > thermal

• Light > Chemical

• Thermal > light

• Chemical > Electrical

According to the Law of Conservation of Energy, energy can be created from matter.

• True

• False

In most energy transformations some energy is always lost in the form of _____________.

• potential energy

• Chemical energy

• Heat

• mechanical

What happens to cooler liquid as hot liquid rises inside the same container

• it evaporates

• it sinks

• it rises

• it warms up by conduction