Light

Question 0

How does an object cast a shadow?

Answer 0

Light travels in straight lines and doesn’t curve.

Question 1

How do light waves travel?

Answer 1

In a straight line.

Question 2

What colors does white light contain?

Answer 2

All the colors of the rainbow : ROY G BIV

Question 3

What happens when light comes in contact with objects?

Answer 3

• Materials that allow light to pass through them easily transmit light.
• Depending on the angle that light hits an object, it may also refract.
• Light reflects off the surface of objects. Humans see most objects because light is reflected from their surfaces to your eyes.
• Light that is not reflected or transmitted is absorbed. The light energy changes to heat energy. It warms the matter that absorbs the light.

Question 4

What are the types of materials?

Answer 4

• Transparent objects let all the light pass through them without scattering the light. Some are air, glass, and water.
• Translucent objects let some light through, but not all. It scatters the light. Some examples are wax,paper, colored plastic, and certain types of glass.
• Opaque objects do not let light pass through them. Wood, metal, and cardboard are examples.