Energy Transformation Notes

Multiple Choice

In solar panels, the sun's radiant is transferred to _____ Energy.

• sound

• solar

• mechanical

• electrical

Multiple Choice

When the toaster is used, Electrical Energy is transferred to _____ Energy.

• solar

• thermal

• sound

• thermal

Multiple Choice

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

• light → electrical → chemical + thermal

• electrical → light → chemical + thermal

• chemical → light → electrical + thermal

• chemical → electrical → light + thermal

Multiple Choice

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 occur?

• mechanical → chemical → light

• mechanical → electrical → light

• chemical → mechanical → electrical

• electrical → light → mechanical

Multiple Choice

What is the difference between potential energy and kinetic energy?

• Potential energy is the energy of an object due to an applied force, while kinetic energy is energy stored after the applied force.

• Potential energy is the energy of an object due to its motion, while kinetic energy is energy due to its position.

• Potential energy is the energy stored after an applied force, while kinetic energy is the energy used from the applied force.

• Potential energy is the energy of an object due to its position, while kinetic energy is energy due to its motion.

Multiple Choice

Can energy be created?

• yes

• no

Multiple Choice

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 —

• solar
• light
• thermal
• mechanical

Multiple Choice

According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 

• destroyed, destroyed
• created, saved
• created, destroyed
• lost, found

Multiple Choice

When a soccer ball is on a field, the energy it has just before being kicked is called

• kinetic energy
• potential energy
• mechanical energy
• chemical energy

Multiple Choice

The roller coaster cart has the most gravitational potential energy at position-

• W
• X
• Y
• Z

Multiple Choice

The picture showing the energy conversion

Chemical → heat

is:

Multiple Choice

Electrical -> Mechanical -> Sound 

• 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

Multiple Choice

Which of the following energy transfers occurs when food is digested?

• chemical to mechanical
• radiant to nuclear
• mechanical to potential
• thermal to chemical

Multiple Choice

What kind of energy is in a stretched rubber band?

• Potential
• Kinetic