Light Absorption and Reflection Concepts

The video tutorial for grade 5 science class covers the interaction of light with objects, focusing on how different colors affect heat absorption. It explains that light can be absorbed, reflected, or transmitted, and that dark colors absorb more heat than light colors. The tutorial includes exercises and activities to help students apply their knowledge, such as determining appropriate clothing for different weather conditions and conducting experiments with jars to observe heat absorption. The video concludes with an activity to make inferences from pictures.

What happens when light hits a smooth, shiny surface?

• It is transmitted.

• It is reflected.

• It is absorbed.

• It is scattered.

Why do black objects absorb more heat than white objects?

• Black objects reflect all colors.

• White objects reflect no colors.

• Black objects absorb all wavelengths of light.

• White objects absorb all wavelengths of light.

When we see a red apple, what is happening to the light?

• Only red is transmitted.

• Only red is absorbed.

• All colors are reflected except red.

• All colors are absorbed except red.

What should you wear on a hot day to stay cool?

• Heavy leather clothes

• Dark-colored clothes

• Light-colored clothes

• Thick woolen clothes

In an experiment, why did the jar with black paper heat up more?

• It was made of metal.

• It reflected more light.

• It was placed in the shade.

• It absorbed more light.

What is the result of light being absorbed by an object?

• The object becomes warmer.

• The object becomes transparent.

• The object changes color.

• The object becomes cooler.

Why do roads appear wet during summer?

• Because of light reflection.

• Because of light absorption.

• Because of light transmission.

• Because of light scattering.

Why are houses with white paint cooler than those with black paint?

• Black paint absorbs less heat.

• White paint reflects more heat.

• Black paint reflects more heat.

• White paint absorbs more heat.

What is the effect of wearing dark clothes in winter?

• They reflect more heat.

• They absorb more heat.

• They make you invisible.

• They make you cooler.

Why do dark-colored clothes dry faster than light-colored ones?

• They are made of different material.

• They are heavier.

• They absorb more sunlight.

• They reflect more sunlight.