
ຫົວບົດສອບເສັງພາກຮຽນ1ວິຊາຟີຊິກສາດມ3
Authored by ນ.ຄອນສະຫັວນ ສົມພອນແກ້ວ
Physics
KG
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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ເຫຼັກທ່ອນຫນຶ່ງມີມວນສານ 20 kg ມີອຸນຫະພູມ 60 °C ເມື່ອມັນເຢັນລົງຮອດ 10 °C ມັນຈະແຜ່ຄວາມຮ້ອນອອກເທົ່າໃດ?
4000cal/kgໍc
110 000cal/kgໍc
20000cal/kgໍc
30000cal/kgໍc
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ນໍ້າມີມວນສານ 250g ຢອນຫະພູມ 90 °C, ເມື່ອເຢັນລົງເຖິງ 10 °C, ມັນຈະແຜ່ຄວາມຮ້ອນອອກເທົ່າໃດ?
20cal
3000cal
20000cal
40000cal
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ນໍ້າມີມວນສານ 25 kg, ຮັບເອົາປະລິມານຄວາມຮ້ອນ 1569,75kJ ເຮັດໃຫ້ອຸນຫະພູມຂອງມັນເພີ່ມຂຶ້ນຮອດ 30 °C. ຖາມວ່າ ອຸນຫະພູມຂອງນ້ໍາ ເມື່ອບໍ່ທັນໄດ້ຕົ້ມແມ່ນເທົ່າໃດ?
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
ການສົ່ງຄວາມຮ້ອນມີຈັກວິທີ?
2ວິທີ
3ວິທີ
4ວິທີ
5ວິທີ
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ລົດຄັນໜຶ່ງບັນທຸກສິນຄ້າແລ້ວມີມວນສານລວມທັງຫມົດ 2,7 ໂຕນ ເຄື່ອນທີ່ຊື່ສະເຫມີຢູ່ເທິງທາງພຽງນອນດ້ວຍຄວາມໄວ 20 m/s.ຈົ່ງຄິດໄລ່ປະລິມານເດີນເຄື່ອນ ຂອງລົດຄັນນີ້.
3200kg.m/s
4300kg.m/s
4500kg.m/s
54000kg.m/s
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ກ້ອນດິນຈີ່ກ້ອນໜຶ່ງຊຶ່ງມີມວນສານ 0,5kg ຕົກຈາກຊັ້ນ 5 ຂອງອາຄານຫຼັງໜຶ່ງທີ່ສູງ ຈາກໜ້າດິນ 20 m . ຈົ່ງຄິດໄລ່ພະລັງງານທ່າຕັ້ງ, ພະລັງງານເດີນເຄື່ອນ ແລະ ພະລັງງານກົນຈັກ.
200J; 0Jແລະ 100J
100J; 50Jແລະ 100J
200J; 30Jແລະ 100J
300J; 20J ແລະ 100J
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
ຫົວຄ້ອນຕີທີ່ມີມວນສານ 4 kg ຖືກຍົກຂຶ້ນສູງ 50 cm ທຽບກັບຫົວ ຕະປທີ່ຖືວ່າມີລະດັບສູງເທົ່າສູນ. ຖາມວ່າ ຫົວຄ້ອນຕີມີພະລັງງານທ່າຕັ້ງ ເທົ່າໃດ? ໃຫ້ g = 10 m/s.
2J
3J
4J
5J
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