Light Behavior and Shadows

The video tutorial explains how shadows are formed when light is blocked by opaque or translucent objects. It includes activities using a rubber hose, torch, and laser to demonstrate that light travels in a straight line. Real-world examples like car headlights and spotlights are provided. The video also discusses the practical applications of shadows in daily life, such as providing shade and protection.

What happens when light from a source is blocked by an opaque object?

• The light changes color.

• The light speeds up.

• A shadow is formed.

• The light bends around the object.

In the rubber hose activity, why can't you see the candle light when the hose is bent?

• The light is too dim to see.

• The light travels in a straight line and cannot bend.

• The light is absorbed by the hose.

• The hose is too long.

How should the cards be arranged to see the light from the torch?

• Randomly placed.

• In a circular pattern.

• In a straight line.

• In a zigzag pattern.

Which of the following is an example of light traveling in a straight line?

• A rainbow forming in the sky.

• The light from a car's headlights.

• The flicker of a candle flame.

• The glow of a firefly.

What is the role of a follow-on spot in theaters?

• To create a shadow on stage.

• To highlight the performer.

• To diffuse the light evenly.

• To change the color of the light.

How does the laser pointer activity demonstrate light travel?

• It shows light can be scattered.

• It shows light travels in a straight line.

• It shows light can curve.

• It shows light can be absorbed.

What is one application of shadows in daily life?

• Using roofs to provide shade.

• Using prisms to split light.

• Using mirrors to reflect light.

• Using lenses to focus light.

Why do translucent objects form shadows?

• They completely block light.

• They allow some light to pass through.

• They reflect all light.

• They emit their own light.

What is the effect of a roof on a sunny day?

• It reflects the sunlight back into the sky.

• It changes the color of the sunlight.

• It blocks the sunlight, creating shade.

• It amplifies the sunlight.

What is a common feature of both opaque and translucent objects regarding light?

• They both allow all light to pass through.

• They both emit light.

• They both block some or all light, forming shadows.

• They both change the color of light.