Exploring Light and Energy Concepts

Which of the following best describes white light?

• It is a single color.

• It is made up of a spectrum of many different colors.

• It is only visible during the day.

• It is only made up of ultraviolet light.

When light passes through a glass of water, it bends. What is this process called?

• Reflection

• Refraction

• Absorption

• Diffusion

Which of the following scenarios best illustrates the absorption of light?

• A mirror reflecting sunlight

• A black shirt getting warm in the sun

• A prism creating a rainbow

• A window letting light pass through

Which type of wave travels fastest in a vacuum?

• Sound waves

• Light waves

• Water waves

• Seismic waves

How does the speed of sound change when it moves from air to water?

• It slows down.

• It speeds up.

• It remains the same.

• It stops completely.

Which of the following is an example of energy transformation?

• A car engine converting gasoline into motion

• A book sitting on a table

• A plant growing in sunlight

• A rock falling from a cliff

Describe how energy is transformed in a solar panel.

• Solar panels convert light energy into thermal energy.

• Solar panels convert light energy into electrical energy.

• Solar panels convert electrical energy into light energy.

• Solar panels convert thermal energy into light energy.

Which statement best explains the law of conservation of energy?

• Energy can be created and destroyed.

• Energy can only be created, not destroyed.

• Energy cannot be created or destroyed, only changed from one form to another.

• Energy is always lost in transformations.

Provide an example of how energy is conserved in a closed system.

• A pendulum eventually stops due to air resistance.

• A battery powering a flashlight until it runs out.

• A roller coaster converting potential energy to kinetic energy and back.

• A car engine losing energy as heat.

During a science project, Abigail, Sophia, and Nora were studying the behavior of light. They discovered that light travels in ___________________

• waves

• sound

• packs

• thunder

Answer explanation

The question asks about the behavior of light that Abigail, Sophia, and Nora discovered during their science project. The correct answer is that light travels in waves. This is a fundamental concept in physics, as light is a type of electromagnetic wave. The other options, such as sound, packs, and thunder, are not the ways in which light travels.