Energy Transformations Notes

Open Ended

What energy transformations do you see?

Multiple Choice

Which statement best describes how energy is conserved during transfers and transformations?

• Energy is lost during every transfer.

• Energy is created during transformations.

• Energy is conserved and only changes form.

• Energy is destroyed in some processes.

Fill in the Blank

The law of conservation of energy states that energy cannot be created or ___, only transformed.

Multiple Choice

According to the information on total energy and balanced systems, what happens to the total amount of energy in a system before and after a process?

• It increases.

• It decreases.

• It remains the same.

• It disappears.

Multiple Select

Which of the following are forms of energy?

• Chemical

• Thermal

• Mechanical

• Magnetic

Multiple Choice

Which of the following is an example of energy being transferred but not transformed?

• A battery powering a flashlight

• A mug of hot chocolate cooling to room temperature

• A roller coaster moving down a track

• A hydroelectric dam generating electricity

Open Ended

If someone were to catch the ball, where do you think the energy would be transferred to?

Open Ended

What does it mean to “transform” energy?

Multiple Choice

Which of the following statements best describes the difference between energy transfer and energy transformation?

• Energy transfer is when energy moves from one place to another, while energy transformation is when energy changes from one form to another.

• Energy transfer is when energy changes from one form to another, while energy transformation is when energy moves from one place to another.

• Energy transfer and energy transformation are the same thing.

• Energy transfer only happens in living things.

Multiple Choice

Based on the waterslide example, what forms of energy does gravitational potential energy transform into as you slide down?

• Mechanical, sound, and thermal energy

• Electrical, chemical, and light energy

• Nuclear, sound, and electrical energy

• Mechanical, chemical, and nuclear energy

Open Ended

Describe how energy is conserved and transformed when a sphere is dropped from different heights and bounces.

Open Ended

Explain how the Law of Conservation of Energy applies to both the waterslide and bumper car examples.

Fill in the Blank

Kinetic energy transfers between bumper cars when they collide by __________ one another and altering their __________ and _______________.

Multiple Choice

Which of the following forms of energy are produced when bumper cars start moving?

• Mechanical, light, heat, and sound

• Gravitational, chemical, and nuclear

• Electrical, magnetic, and gravitational

• Thermal, nuclear, and chemical

Open Ended

Why do you think that unused energy returns to the battery?

Multiple Choice

Which type of energy transformation occurs when a battery powers a light bulb in a simple electrical circuit?

• Chemical energy to electrical energy to light and thermal energy

• Thermal energy to chemical energy to electrical energy

• Electrical energy to chemical energy to light energy

• Light energy to electrical energy to chemical energy

Fill in the Blank

When batteries 'die,' it means that all the energy that the battery started with has ___

Multiple Choice

What is the main purpose of the turbine in a hydropower dam?

• To store water for later use

• To transform kinetic energy of water into mechanical energy

• To generate heat from water

• To transfer electrical energy to customers

Multiple Select

Which types of energy are involved in the transformation that occurs when a roller coaster moves from the top of the first hill to the end of the ride?

• Gravitational

• Mechanical

• Sound

• Thermal

Multiple Select

When a microwave heats a bowl of soup, which forms of energy are present after the transformation?

• Light

• Thermal

• Mechanical

• Sound

Multiple Choice

Energy can be transformed from one form to another. Which of the following is an example of energy transformation in a solar panel system?

• Light energy to electrical energy

• Electrical energy to sound energy

• Chemical energy to thermal energy

• Mechanical energy to light energy

Open Ended

What is one example of an energy transformation that you learned about in this lesson, and how does it work within a system?