Fifth Grade Science Volume 1, Textbook Edition
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Science Edition for Sixth Grade Science Volume 1
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Fourth Grade Science Volume 1, Textbook Edition
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Qingdao Edition Fifth Grade Science Volume 2
Fourth-grade science volume 2 of the E-education edition
Fifth Grade Science Volume 2, Textbook Edition
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!["Motion and Friction" Motion and Force PPT Courseware 5](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/c45b4299-b0a6-4235-9855-edc5265c1ea8.webp)
Category | Format | Size |
---|---|---|
Fifth Grade Science Volume 1, Textbook Edition | pptx | 6 MB |
Description
"Motion and Friction" Motion and Force PPT Courseware 5
When one object moves on the surface of another object, friction occurs at the contact surface between the two objects.
When friction occurs, a moving object experiences a force that hinders its movement. This force is called friction.
We use a dynamometer to pull an object in the horizontal direction. When the object moves at a constant speed, the force it receives is equivalent to the friction force it experiences.
When measuring friction, pay attention to:
1. When pulling an object, use the same speed, not sometimes faster and sometimes slower;
2. The reading should be taken while the object is in motion, and cannot be stopped and read again.
3. Check whether the force gauge pointer is aligned with the zero mark.
test you
1. The greater the weight of the trolley, the greater the friction it will receive ( ).
A. Large B. Small C. It has nothing to do with the load capacity
2. The conditions that need to be changed when doing experiments on the relationship between friction force and object weight are ( ).
A. The speed of pulling an object
B. The weight of the object
C. Surface smoothness
3. You can use ( ) to measure the friction force by pulling the wooden block on the table.
A. Dynamometer B. Level C. Balance scale
4. Pulling the same car horizontally on ( ) requires the least effort.
A. Glass B. Wood board C. Towel
5. The direction of friction and the direction of object motion ( ).
A. Same B. Opposite C. Both possible
1. An object will not be affected by friction if it does not move. ( )
2. The magnitude of friction can be measured. ( )
3. It is difficult for a large truck loaded with goods to stop, so it can be said that the heavier the object, the smaller the friction. ( )
4. When the car brakes suddenly, there is sliding friction between the wheels and the ground ( )
5. Because of the existence of friction, we have to work hard when dragging objects, so the existence of friction has only disadvantages and no advantages. ( )
6. In order for an object to move, it must first overcome friction ( )
Keywords: motion and force teaching courseware, motion and friction teaching courseware, textbook fifth grade science PPT courseware download, fifth grade science slide courseware download, motion and force PPT courseware download, motion and friction PPT courseware download,. PPT format;
For more information about the "Motion and Forces Motion and Friction" PPT courseware, please click the Motion and Forces PPT Motion and Friction PPT tab.
"Motion and Friction" Motion and Force PPT download:
"Motion and Friction" Motion and Force PPT Download Part One Content: New Lesson Preliminary Study When an object moves on the surface of another object, friction will occur at the contact surface of the two objects, so the moving object will be subject to a force that hinders the movement. This force is called friction. ..
"Motion and Friction" Motion and Force PPT:
"Motion and Friction" Motion and Force PPT Part 1: Object Movement and Friction When an object moves on the surface of another object, friction will occur at the contact surface of the two objects, so the moving object will experience a force that hinders the movement. , this force is called friction..
"Motion and Friction" Motion and Force PPT Courseware 4:
"Motion and Friction" Motion and Force PPT Courseware 4 When an object moves on the surface of another object, friction will occur at the contact surface of the two objects. A moving object is subject to a force that hinders its movement. This force is called friction. Experiment 1: Friction force and contact..
File Info
Update Time: 2024-09-06
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!["Motion and Friction" Motion and Force PPT Courseware 5](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/1195d88d-c56d-469c-aeda-e6ba62ebd99e.webp)