People's Education Edition Physics for Grade 8, Volume 2
People's Education Edition Ninth Grade Physics Complete Book
Shanghai Science Edition Ninth Grade Physics
People's Education Edition Physics for Grade 8, Volume 1
Beijing Normal University eighth grade physics volume one
Shanghai Science Edition 8th Grade Physics
Lu Jiao Edition Ninth Grade Physics Volume 1
Beijing Normal University Ninth Grade Physics Volume 1
Guangdong and Shanghai Edition Ninth Grade Physics Volume 1
Lu Jiao Edition Ninth Grade Physics Volume 2
Lu Ke Edition High School Physics Compulsory Course One
People's Education Press High School Physics Compulsory Course II
Beijing Normal University Ninth Grade Physics Volume 2
Lu Jiao Edition Eighth Grade Physics Volume 2
Guangdong and Shanghai version of eighth grade physics volume 2
Lu Jiao edition eighth grade physics volume 1
!["Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 4](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/a7458752-64e8-4e69-b4c2-b064ea4910d0.webp)
Category | Format | Size |
---|---|---|
People's Education Edition Physics for Grade 8, Volume 2 | pptx | 6 MB |
Description
"Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 4
review
In the following situations, what work does a person do on an object ( )
A. Weightlifter holds the barbell motionless while being photographed by reporters
B. A person carrying a heavy object moves forward at a constant speed along a level road
C. A person pushes a cart with force and the cart moves on the horizontal ground in the direction of the force.
D. The child tried hard to move the stone but failed to move it
1. Ability
1. Objects can do work on the outside, and each object has energy, referred to as energy. Unit: joule (J)
2. The more work an object can do, the more energy it has.
What do moving bullets, running water, and a moving hammer have in common?
What factors are related to the magnitude of kinetic energy?
design experiment
1. Make a guess:
The amount of kinetic energy may be related to factors such as the ______ of the object.
2. Design experimental plan
hint
(1) Consider the “control variable method”
(2) How to compare the magnitude of kinetic energy?
Want to discuss:
The picture shows a scene of a highway. Please explain it in physics terms:
(1) Why should the driving speed of motor vehicles be limited?
Answer: (1) The greater the speed of an object, the greater its kinetic energy, making it difficult to brake and easily causing traffic accidents.
(2) Why do different models of vehicles have different speed limits on the same road?
Answer: The greater the mass, the greater the kinetic energy, so the speed limit of buses is lower than that of cars.
think
1. Did the heavy hammer do any work on the pile?
2. The lifted heavy hammer has the ability to do work on the pile, so the lifted heavy hammer should have ____;
3. So what is the function of the lifted weight?
2. Gravitational potential energy
1. The energy an object possesses due to being lifted high is called gravitational potential energy.
All objects that are lifted have gravitational potential energy.
2. What factors are related to the magnitude of gravitational potential energy?
1. Make conjectures:
The gravitational potential energy of an object may be related to ______ and ______. possible……
2. Design experiments:
"Control Variable"
A: Lift the weights of different masses to the same height and then let them fall freely, and observe the extent of the wooden pile sinking each time.
B: Lift the same weight to different heights and then let it fall freely, hit the wooden pile, and observe the degree of subsidence of the wooden pile each time.
Try to practice
1. A car and a truck move in a straight line at a constant speed on a straight road, then it can be determined that ( )
A. The kinetic energy of a car must be greater than that of a truck;
B. The kinetic energy of trucks must be greater than that of cars;
C. The kinetic energy of the car must be equal to that of the truck;
D. The kinetic energy of a car may be greater than that of a truck.
2. There is a line in Tang poetry: "The Yellow River is far up among the white clouds, and the endless Yangtze River is rolling in." This moving line vividly and vividly reflects that this great river contains a large amount of ______ energy and ______ energy.
3. A magpie with a larger mass and a swallow with a smaller mass fly in the air. If their kinetic energy is equal, then _____ flies faster.
4. There are lines in Tang poetry such as "The Yellow River is far up among the white clouds" and "The endless Yangtze River is rolling in". These moving lines vividly and vividly reflect that these two rivers contain a lot of __________.
Keywords: work and mechanical energy teaching courseware, kinetic energy and potential energy teaching courseware, New People's Education Edition eighth grade physics PPT courseware volume 2, eighth grade physics slide courseware download, work and mechanical energy PPT courseware download, kinetic energy and potential energy PPT courseware download,. ppt format
For more information about the PPT courseware "Work and Mechanical Energy Kinetic Energy and Potential Energy", please click the Work and Mechanical Energy ppt Kinetic Energy and Potential Energy ppt tag.
"Understanding Kinetic Energy and Potential Energy" Mechanical Work and Mechanical Energy PPT Courseware 2:
"Understanding Kinetic Energy and Potential Energy" Mechanical Work and Mechanical Energy PPT Courseware 2 1: What is energy? (a) A stretched bow can shoot an arrow (b) Waves hit a surfboard (c) A deformed springboard bounces the athlete up (d) A diver falls into the water and splashes 1. Objects can do things to the outside world..
"Understanding Kinetic Energy and Potential Energy" Mechanical Work and Mechanical Energy PPT Courseware:
"Understanding Kinetic Energy and Potential Energy" Mechanical Work and Mechanical Energy PPT Courseware Learning Objectives: 1. Know that mechanical energy consists of kinetic energy and gravitational potential energy, and know the influencing factors of kinetic energy and gravitational potential energy; 2. Understand that kinetic energy and gravitational potential energy can be converted into each other and explain related phenomena.
"Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 6:
"Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 6 Lesson Objectives: Know what kinetic energy and potential energy are, understand what factors are related to the magnitude of kinetic energy and potential energy, and use the control variable method and conversion method to research problems... ... ... Explore: What factors are related to the size of kinetic energy? ..
File Info
Update Time: 2024-08-10
This template belongs to Physics courseware People's Education Edition Physics for Grade 8, Volume 2 industry PPT template
"Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 4 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 4 is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 4, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
!["Kinetic Energy and Potential Energy" Work and Mechanical Energy PPT Courseware 4](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/e9a7312a-347d-45dd-a4e2-e0edaebd7150.webp)