ๆบๆใฏ
ๆใซๅคช้ฝใฎๅ
ใ็ๆญฃ้ขใใๅฝใใฃใฆใใใฎใง
๏ผฃใ ใจใใใใพใ
ใ
ๆฌกใซใใใฎ๏ผฃใ็งใใกใๅฐ็ใใ่ฆใๆ
ๅณใฎๅฐ็ใฎๅทฆๅดใใ่ฆใฆใใใจใใใใพใ
ใ
ใใฎๆใๅฐ็ใฎ่ฃๅด(ๅณๅด)ใซๅคช้ฝใใใใฎใง
็ๅคไธญใ ใจใใใใพใ
ใ
่ณชๅใใใใฐใฉใใ
Science
Junior High
ๆฅใใงใ๐ฆ
(2)ใๆใใฆไธใใ๐โโ๏ธ
็ญใใฏใ็ๅคไธญใชใฎใงใใ็็ฑใๅใใใชใใฎใง่ฉณใใๆใใฆไธใใ๐ฆ๐โโ๏ธ
2ๆใฎๆบใกๆฌ ใ
Sp.95~96
ๅณใฎๅณใฏ,ๅฐ็ใฎๅๆฅตๅดใใ่ฆใๆ
a ๆใฎๅ
ฌ่ปข่ป้
ใใใฆใใใฉใ
ใฎๅ
ฌ่ปข่ป้ใจๅคช้ฝใจใฎไฝ็ฝฎ้ขไฟใ่กจใ
ใใใฎใงใใๆฌกใฎๅใใซ็ญใใชใใใ
(1) ๆฌกใฎ0, โกใฎใจใใฎๆใฎไฝ็ฝฎใ,
ๅณใฎa~hใใ้ธใณใชใใใ
0 ใฟๆนใฎๅใฎ็ฉบใซไธๅผฆใฎๆ (ๅๆ)
ใ่ฆใใใใ
2 ๆใฎๅๆฑใฎ็ฉบใซๆฑๅดใๅ
ใฃใฆใใ็ดฐใๆใ่ฆใใใใ
(2) ๆบๆใๅไธญใใใฎใฏ, ใฟๆนยท็ๅคไธญยทๆๆนใฎใใกใฎใใคใงใใใ
cO
ๅฐ็
9
ๅฐ็ใฎ
่ช่ปขๆนๅ
ใใใใ
d
f
e
ใชใใกใ
ใ
ใใฃใใใ
ๅคช้ฝใฎๅ
Answers
ๅฐ็ใฏๅคช้ฝใซๅฏพใใฆๅทฆใๅๅใ็ๅคไธญใงใ๏ผๅคช้ฝใๅฝใใฃใฆใใชใ๏ผ
ๆบๆใๅไธญใใฆใใฎใฏๅคช้ฝใใใกใฐใใใๅฝใใgใฎใใกใงใใ
็้ใชใฎใง่ฆใใชใใฎใ ใจๆใใพใใ
้้ใฃใฆใใใใใฟใพใใ๐๐ผโโ๏ธ
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