Physical Science : Light And Energy

The video tutorial explores various forms of energy, including heat, electric, sound, chemical, mechanical, and light. It explains energy as the ability to do work and discusses how energy can be transferred and converted between different forms. Examples include light bulbs, batteries, and solar panels. The properties of light, such as reflection, absorption, and scattering, are also covered. The tutorial concludes with a fun farewell, encouraging viewers to reflect on the importance of energy in everyday life.

Which of the following is NOT a form of energy mentioned in the video?

• Heat

• Sound

• Chemical

• Nuclear

What happens when you touch a cold metal doorknob?

• Heat energy is transferred to the doorknob.

• The doorknob becomes electrically charged.

• Sound energy is produced.

• The doorknob changes color.

How does a battery release electrical energy?

• Through chemical energy inside it

• By converting sound energy

• Through mechanical energy

• By absorbing light energy

Why does a black car get hotter in the sun compared to a white car?

• It absorbs more light.

• It reflects more light.

• It scatters more light.

• It bends more light.

What causes the sky to appear blue on Earth?

• Scattering of light by oxygen molecules

• Reflection of light by water

• Absorption of light by clouds

• Bending of light by the atmosphere