What is the correct transformation of a flashlight?
electrical-mechanical-light
mechanical-sound-electrical
chemical-electrical-light
Thermal energy always moves from –
large objects to small objects.
warm objects to cool objects
dark objects to light objects
Which of the following is an example of heat transfer by conduction?
Sunlight warming a room early in the morning
Warm and cold water circulating in an ocean
A warm spoon sitting in a bowl of hot soup
A student notices that the saucer below a coffee cup becomes warmer after coffee is poured into the cup. Energy was transferred from –
the cup to the saucer by conduction
the cup to the saucer by convection
the saucer to the cup by convection
____________________ is the ability to do work.
kinetic energy
potential energy
energy
_________________________is a change of energy from one form to another
kinetic energy
potential energy
energy transformation
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 to thermal
light to chemical
thermal to light
Hot-air balloons rise when a burner, positioned under the opening of the balloon, uses propane to create a blast of fire. What form of energy causes a hot-air balloon to rise into the air?
mechanical
light
thermal
______________________________ is the transfer of thermal energy that only occurs in liquids and gases.
conduction
convection
radiation
Edgar’s soccer coach told him to eat a good breakfast Saturday morning in order to have plenty of energy for the soccer game. To which transformation of energy is Edgar’s coach referring?