Light Energy

The ability of light to cause change, such as heating an object.

What is the primary source of light energy for Earth?

• The Moon

• The Sun

• Stars

• Electric Bulbs

Which of the following is a renewable source of light energy?

• Coal

• Natural Gas

• Solar Panels

• Nuclear Power

How does light energy travel through space?

• In waves

• In a straight line

• In a zigzag pattern

• In a spiral

What is the process by which plants use light energy to make food?

• Respiration

• Photosynthesis

• Digestion

• Fermentation

Which color of light has the highest energy?

• Red

• Green

• Blue

• Violet

What is the term for the bending of light as it passes through different mediums?

• Reflection

• Refraction

• Diffusion

• Absorption

Which device is used to measure the intensity of light?

• Thermometer

• Barometer

• Lux Meter

• Speedometer

What is the effect of light energy on the skin?

• Cooling

• Tanning

• Freezing

• Numbing

Which of the following is NOT a property of light energy?

• It can travel through a vacuum

• It has mass

• It travels at a constant speed

• It can be reflected