Shadows

The video explores the behavior of light, including refraction and reflection, and how shadows are formed. It explains the concepts of umbra and penumbra, and how the size of shadows changes with distance. The video also discusses the phenomenon of solar eclipses, where the moon casts a shadow on Earth, creating regions of umbra and penumbra. Viewers are cautioned against looking directly at an eclipse to avoid eye damage.

What is the behavior of light when it encounters a transparent material?

• It is completely blocked.

• It is partially blocked.

• It is absorbed.

• It passes through.

Which part of a shadow is the darkest?

• Core

• Periphery

• Penumbra

• Umbra

How does the distance between an object and a light source affect the shadow size?

• The shadow size increases.

• The shadow size remains constant.

• The shadow size decreases.

• The shadow disappears.

During a solar eclipse, what prevents sunlight from reaching parts of the Earth?

• The Sun's rays

• Clouds

• The Moon

• The Earth's atmosphere

Why is it dangerous to look directly at a solar eclipse?

• It can cause headaches.

• It can damage your eyesight.

• It can make you dizzy.

• It can cause temporary blindness.