Renewable Energy Concepts and Applications

The video tutorial covers class three science worksheets focusing on the Sun as a natural resource. It discusses the process of photosynthesis, solar cookers, and the differences between renewable and non-renewable energy sources. The video also highlights the importance of the Sun for all living things, explores solar energy appliances, and provides methods for energy conservation.

What is the process called by which plants produce their own food using sunlight?

• Fermentation

• Respiration

• Photosynthesis

• Transpiration

Which type of cooker uses sunlight to prepare food?

• Solar Cooker

• Gas Cooker

• Induction Cooker

• Electric Cooker

What are rectangular boards with cells that convert solar energy into electricity called?

• Solar Panels

• Geothermal Plates

• Hydro Panels

• Wind Turbines

Which of the following is a renewable resource?

• Wind

• Natural Gas

• Oil

• Coal

What is the energy derived from the movement of water in rivers called?

• Hydro Energy

• Solar Energy

• Geothermal Energy

• Wind Energy

Why should we use LED lamps instead of regular bulbs?

• They consume more energy

• They are brighter

• They last longer and save energy

• They are cheaper

Why is the sun crucial for all living things?

• It provides warmth

• It is a source of light

• It causes rain

• It helps plants make food, which supports all life

Which of the following is NOT a solar appliance?

• Electric Heater

• Solar Geyser

• Solar Calculator

• Solar Cooker

What is a key difference between renewable and nonrenewable energy sources?

• Renewable sources are more expensive

• Nonrenewable sources are unlimited

• Renewable sources are naturally replenished

• Nonrenewable sources are pollution-free

Which of the following is a method to conserve energy?

• Using incandescent bulbs

• Leaving lights on

• Using public transport

• Driving alone