แรง Force

•

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K

kruthongchai_sheet

Force
แรง

แรงและเครื่องมือวัดแรงเบื้องต้น
อุปกรณ์
1.ตาชั่งสปริง
2.มวลถ่วงขนาด 500
กรัม และ 100 กรัม
นักเรียน 1 คนออกมาสาธิตการวัดแรง
ของวัตถุ

แรงเป็นสิ่งที่ทำให้วัตถุเปลี่ยนรูปร่ำง เปลี่ยนทิศทำง
เกิดกำรเคลื่อนที่หรือหยุดนิ่งได้แรงสำมำรถเปลี่ยน
ควำมเร็วของวัตถุได้หรือกล่ำวได้ว่ำแรงทำให้วัตถุ
เกิดควำมเร่ง

N
F
W
f

F2
F1
F3
F6
F4
F5

การทดลองเรื่องแรงและแรงดันอากาศ
อุปกรณ์
1.ภาชนะทรงกระบอกใส
2.กลีเซอรอล
3.หลอดฉีดยา
4.สายยาง

คำถำม
ฟองอากาศที่มี่ขนาดใหญ่ ขนาดเล็ก อันไหนจะเคลื่อนที่ขึ้นได้เร็ว
กว่ากัน ?
Large =
Small =
Equal =
เขียนแนวแรงที่กระทาต่อฟองอากาศพร้อมทั้งอธิบายมาพอสังเขป

homework
ให้นักเรียนดู sci show ต่อไปนี้แล้วให้เขียนแนวแรงที่กระทาต่อตะปู ทั้งสองข้าง
และศึกษาจุดศูนย์ถ่วง พร้อมทั้งอธิบายมาพอสังเขป ส่งครูในคาบถัดไป

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แรง Force

1. Force แรง

3. แรงและเครื่องมือวัดแรงเบื้องต้น อุปกรณ์ 1.ตาชั่งสปริง 2.มวลถ่วงขนาด 500 กรัม และ 100 กรัม นักเรียน 1 คนออกมาสาธิตการวัดแรง ของวัตถุ

4. แรงเป็นสิ่งที่ทำให้วัตถุเปลี่ยนรูปร่ำง เปลี่ยนทิศทำง เกิดกำรเคลื่อนที่หรือหยุดนิ่งได้แรงสำมำรถเปลี่ยน ควำมเร็วของวัตถุได้หรือกล่ำวได้ว่ำแรงทำให้วัตถุ เกิดควำมเร่ง

6. F2 F1 F3 F6 F4 F5

7. การทดลองเรื่องแรงและแรงดันอากาศ อุปกรณ์ 1.ภาชนะทรงกระบอกใส 2.กลีเซอรอล 3.หลอดฉีดยา 4.สายยาง

8. คำถำม ฟองอากาศที่มี่ขนาดใหญ่ ขนาดเล็ก อันไหนจะเคลื่อนที่ขึ้นได้เร็ว กว่ากัน ? Large = Small = Equal = เขียนแนวแรงที่กระทาต่อฟองอากาศพร้อมทั้งอธิบายมาพอสังเขป

9. homework ให้นักเรียนดู sci show ต่อไปนี้แล้วให้เขียนแนวแรงที่กระทาต่อตะปู ทั้งสองข้าง และศึกษาจุดศูนย์ถ่วง พร้อมทั้งอธิบายมาพอสังเขป ส่งครูในคาบถัดไป