Forms of Energy

Forms of Energy

Essential Question

• Explain how energy is transformed in terms of the Law of Conservation of Energy.

There are many forms of energy, but today we are going to focus on Solar Energy

Law of Conservation of Energy

• Energy CANNOT be CREATED OR DESTROYED.

• Energy may CHANGE form, but the TOTAL amount remains the SAME.

Solar Energy is

• Radiation from the Sun.

• Capable of producing heat, causing chemical reactions, or generating electricity.

Radiant/Solar Energy can be...

• Absorbed

• Transmitted

• Reflected

Major Energy Transformation in Life

Major Transformation

• Solar Energy is transformed into Chemical Energy (Food that plants makes)

Let's Review

Multiple Choice

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

• destroyed, destroyed

• created, saved

• created, destroyed

• lost, found

Multiple Choice

Energy transformations occur when...

• energy is created through conduction

• energy changes from one form to another

• two forces slide together that are touching

• a chemical reaction takes place

Multiple Choice

Energy from the sun is called ..................

• Geothermal

• Solar/Radiant

• Hydroelectric

Multiple Choice

The sun provides ____________ and ____________ energy that can be harnessed and used for solar power.

• chemical, sound

• mechanical, light

• sound, light

• light, thermal

Multiple Choice

Which items would have this energy transformation: Radiant energy -> chemical energy?

• tree growing fruit

• person running

• solar calculator

• windmill turning

Multiple Choice

What is the main purpose of photosynthesis?

• To make food for plants

• To create energy

• To release oxygen

• To absorb sunlight

Multiple Select

Which of the following are TRUE statements? (Select ALL that apply)

• Photosynthesis takes place in the chloroplasts of leaf cells

• Photosynthesis means "making food using sun"

• Photosynthesis can occur in the dark

• All plants, plant-like protists, and some bacteria go through photosynthesis