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WorksheetsEnergy Transformations
Total questions: 13
Worksheet time: 13mins
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
Law of Conservation of Mass
Newton's Second Law
Law of Conservation of Energy
Law of Conservation of Momentum
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
nuclear
light
thermal (heat)
kinetic
What energy is given off when a cell phone rings?
Sound Energy
Gravitational Energy
Thermal Energy
Potential Energy
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
People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?
mechanical to thermal to electrical
chemical to kinetic to heat
mechanical to chemical to sound
chemical to sound to electrical
A computer works by transforming electrical energy into what other kinds of energy?
Light, heat, kinetic energy, and sound
Thermal, chemical, and potential
Sound, kinetic, and electrical
Light, chemical, and potential
A car transforms the __________energy from the gasoline to __________energy of motion.
heat; electrical
nuclear; kinetic
kinetic; potential
chemical; kinetic
Some students observing a classroom device being used, noticed the below energy transformations.
Electrical →kinetic → Sound
Which device were the students most likely observing?
A triple beam balance measuring an object’s mass.
A pencil sharpener plugged into a wall outlet.
A projector displaying a diagram on the screen.
A working flashlight used to light up a dark corner.
A solar-powered calculator applies the photoelectric effect to transform __________energy into the __________energy needed to operate.
sound; light
light; electrical
nuclear; light
chemical; electrical
Which of the following devices transforms electrical energy into kinetic energy?
A gas stove
an electric blender
an electric curling iron
an electric generator
When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?
electrical → light → potential → kinetic
chemical → kinetic → potential → electrical
potential → kinetic → electrical → light
kinetic →potential → electrical → light
