"Development and Utilization of Energy" Energy, Materials and Society PPT Courseware 2

Description

"Development and Utilization of Energy" Energy, Materials and Society PPT Courseware 2

learning target:

1. Be able to distinguish between renewable energy and non-renewable resources.

2. Understand the history of human development and utilization of energy.

3. Understand the current status of energy utilization in the world and our country and its impact on the environment.

4. Establish awareness of energy conservation and environmental protection.

5. Develop new energy sources.

energy concept

Material resources that can provide energy, such as coal, natural gas, gasoline, water flow, wind, electricity, sunlight, etc., we call them energy.

Do you know of other energy sources that humans have harnessed?

Wind energy, water energy, solar energy, biomass, etc. --- Renewable energy

Coal, oil, natural gas, nuclear energy, etc. --- non-renewable energy

By source: primary energy and secondary energy

Primary energy is energy directly provided by nature.

Energy converted from energy provided by nature is secondary energy.

What about wind energy, gasoline, biogas?

Development of new energy

1. What other energy sources do you think or do you know that are worthy of human development?

2. Which new energy do you think has the most potential for development?

3. Combined with the construction of Lishui Ecological Demonstration Zone, let’s talk about what our city can do to solve the “energy problem”?

solar energy

1. Can you talk about the characteristics of solar energy?

2. What are the main methods of utilizing solar energy at present?

Hydrogen energy

What do you think are the advantages of hydrogen energy?

What do you think is the reason why hydrogen energy cannot be used in large quantities at present?

What are your suggestions for applying hydrogen energy?

Biogas energy

What areas are suitable for the development of biogas energy?

How is biogas obtained?

What should we pay attention to when using biogas energy?

Class exercises:

1. Which of the following groups of substances are non-renewable energy sources? ( )

A. Wind energy, nuclear energy, solar energy B. Coal, biogas, petroleum

C. Oil, natural gas, coal D. Solar energy, geothermal energy, nuclear energy

2. Energy that does not cause pollution to the environment when used is called clean energy. The following are clean energy sources ( )

A.Coal B.Charcoal C.Solar energy D.Nuclear energy

3. With the development of society, energy demand is increasing, and energy shortage has become a major problem hindering social development. In daily life, we should all save the energy around us. The following energy-saving and safe practices are ( )

A. In winter, the door is not closed properly after being opened. B. Try to use natural light during the day.

C. Use a gas stove for heating D. Only wash one piece of clothing at a time

4. The fundamental way to permanently solve humankind’s energy needs is ()

A. Improve technology and increase fuel utilization. B. Make full use of fossil energy on the earth

C. Reduce the use of energy as much as possible D. Rely on scientific and technological progress and continuously develop new energy sources.

Explore practice:

Energy issues are one of the three major factors in the development of modern society.

1. In the energy family: ⑴ firewood, ⑵ coal, ⑶ petroleum, ⑷ natural gas, ⑸ water energy, ⑹ wind energy, ⑺ solar energy, ⑻ geothermal energy, etc. When a large amount of various energy sources are consumed, the ones that will cause air pollution are ____________ ; What can cause soil erosion and desertification is _____ (fill in the serial number).

2. A natural gas project is underway in a certain city. Some people are in favor and some are against it. Xiaogang collected the following two sets of data:

Please make your decision: ____ (optional "A" or ""B") A. Continue to use gas; B. Switch to natural gas. Briefly explain the reason______.

Keywords: Energy Materials and Society Teaching Courseware, Energy Development and Utilization Teaching Courseware, Shanghai Science Edition Ninth Grade Physics PPT Courseware Download, Ninth Grade Physics Slide Courseware Download, Energy Materials and Society PPT Courseware Download, Energy Development and Download PPT courseware in .PPT format;

For more information about the PPT courseware "Energy Materials and Social Energy Development and Utilization", please click on the Energy Materials and Social PPT Development and Utilization of Energy PPT tab.

"Development and Utilization of Energy" Energy, Materials and Society PPT Courseware 3:

"Development and Utilization of Energy" Energy, Materials and Society PPT Courseware 3 New Knowledge Exploration 1. Energy and Society Energy: If an object can do work on the outside, we say that the object has energy. (Such as mechanical energy, internal energy, electrical energy, etc.) Energy: refers to the generation of energy for human beings..

"Development and Utilization of Energy" Energy, Materials and Society PPT courseware:

"Development and Utilization of Energy" Energy, Materials and Society PPT courseware 1. Natural energy Renewable energy: Energy sources such as ________, ________, ________ and ________ that can ________ or can ________. Non-renewable energy: like ____..

File Info

Update Time: 2024-11-22

This template belongs to Physics courseware Shanghai Science Edition Ninth Grade Physics industry PPT template

Preview