"Why Ballpoint Pen Refills Can Retract" PPT Courseware 3

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"Why Ballpoint Pen Refills Can Retract" PPT Courseware 3

Warm tips

1. What are the characteristics of the spring that enable the refill to expand and contract easily?

2. What happens when the spring is pulled, pressed, or pressed? Carefully experience how it feels on your hands? What happens after you release it? Can you give Zhongli a nice name?

3. What other objects in life have characteristics similar to springs? Play with the materials in hand and write down your findings on the leader note card.

4. What discoveries did you make through the above experimental records?

5. When these objects are pressed, their shapes change, and a reaction force is felt on the hand. After releasing, they return to their original shape. Can you give this magical property a name?

I am a learning leader

1. Give examples of where the elasticity of objects is used in life? What role does it play?

2. The ballpoint pen refill can expand and contract by using a spring ( ).

3. Judgment:

A. All objects are elastic. ( )

B. Because the spring is elastic, it can return to its original shape no matter how long it is stretched. ( )

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For more information about the PPT courseware "Why Ballpoint Pen Refills Can Retract", please click on the Why Can Ballpoint Pen Refills Retract ppt tab.

"Why Ballpoint Pen Refills Can Retract" PPT Courseware 2:

"Why Ballpoint Pen Refills Can Retract" PPT Courseware 2 1. Experimental exploration, preliminary understanding 1. Careful observation: 1. What happens when the spring is stressed? 2. What happens when the force-bearing spring is cancelled? 2. Experience it carefully: How do your hands feel? Warm reminder: Pay attention to safety...

"Why Ballpoint Pen Refills Can Retract" PPT courseware:

"Why Ballpoint Pen Refills Can Retract" PPT Courseware Experiment 1: Observe carefully: What happens to the spring? Experience it carefully: How do your hands feel? Characteristics of the spring: When pulled by hand, the spring will ( ) after being stressed. Release your hand and remove the force, the spring will (..

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Update Time: 2024-09-30

This template belongs to science courseware Fourth-grade science volume 2 of the E-education edition industry PPT template

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