"Using Rubber Bands as Power" Motion and Force PPT Download 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!
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"Using Rubber Bands as Power" Motion and Force PPT Download
Part One Content: Collaborative Exploration
Install the rubber band driven trolley
The number of turns of the rubber band and the distance traveled by the car
How does the force of a rubber band occur?
Experiment find-outs
1. The power of the car comes from the force generated by the rubber band.
2. The relationship between the driving direction of the car and the winding direction of the rubber band:
The rubber band goes back and the car moves forward;
The rubber band goes forward and the car moves backward.
The number of turns of the rubber band and the distance traveled by the car
Exploration: Speculate what is the relationship between the number of turns of the rubber band wrapped around the axle and the distance traveled by the car?
Using rubber bands as power PPT, part 2: expansion and extension
A rubber band is a short loop made of rubber and latex, generally used to tie things together. It was invented by Stephen Perry on March 17, 1845.
Rubber bands are made of latex by dipping method and have the characteristics of large elongation, good resilience, low price, and easy use. The manufacturing process includes impregnation, vulcanization, demoulding, ring (strip) cutting and other processes.
Using rubber bands as power PPT, part 3: Class summary
The distance the car travels is related to the size of the elastic force. The greater the elastic force, the farther it travels; the smaller the elastic force, the closer it travels. Elasticity is the force that restores the original shape after a change in shape. Elasticity has many applications in life.
Using rubber bands as power PPT, Part 4: Exercises in this lesson
1. ( ) is the force generated when the shape of an object changes to restore its original shape.
2. The greater the elastic force of the rubber band, the action time ( ) and the distance the car moves ( ).
3. When a rubber band is stretched, it can produce ( ).
Using rubber bands as power PPT, Part 5: Homework
Make a rubber-band powered car to demonstrate in the next class.
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