Muaj pes tsawg GCSEs science suav li?

Video: Muaj pes tsawg GCSEs science suav li?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Yog tias lawv tau txais cov txuj ci kev tshawb fawb ua ke, lawv yuav tau txais qhov khoom plig tsim nyog 2 GCSE . Nws yuav muaj ob qib sib npaug los yog nyob ib sab ntawm 9 txog 1, muab 17 qib sib xyaw ua ke - piv txwv li, (9-9); (9–8); (8-8) mus rau (1-1).

Tom qab ntawd, science suav li 3 GCSEs?

Yog, triple kev kawm txhais tau tias noj 3 kev kawm rau GCSE kev xaiv. Ob feem peb ntawm cov ntsiab lus zoo ib yam li qhov uas kawm los ntawm cov tub ntxhais kawm tau txais ob kev kawm khoom plig. Ib GCSE hauv Biology, ib qho hauv Chemistry thiab ib qho hauv Physics. Txhua tus ua core modules hauv B, C thiab P.

Ib sab saum toj no, puas yog 4 3 dhau los hauv GCSE science? Feem ntau, tus menyuam kawm ntawv uas yuav tau qhab nia A nruab nrab kev kawm thiab ntxiv kev kawm xyoo 2017 yuav tau qib 7-7 hauv GCSE Ua ke Kev tshawb fawb los ntawm 2018 mus rau. Nyob rau lub caij ntuj sov 2018 Ofqual tau qhia qib 3-3 tshiab rau kev ua ke kev kawm , thiab qib kev nyab xeeb puv puv 4-3 nyob ua ke kev kawm.

Tsis tas li, muaj pes tsawg daim ntawv GCSE science muaj?

Tag nrho GCSE Science cov tub ntxhais kawm (ob leeg ob leeg thiab Triple cov tub ntxhais kawm ntawm tag nrho peb lub rooj sib tw xeem) yuav tau txais tag nrho rau rau cov ntawv , ob rau txhua qhov kev kawm, nyob rau hnub nram qab no: Biology ( Ntawv 1) 12-May-20.

GCSE science yog dab tsi?

GCSE science yog qhov kev xaiv yuam kev, tab sis koj tuaj yeem xaiv los kawm nws ntau txoj hauv kev: Core: ib leeg science GCSE , suav nrog biology, chemistry thiab physics. Double Award (lossis 'Dual Award'): muaj nqis ob GCSEs (Core thiab Ntxiv), npog tag nrho peb yam nyob rau hauv ntau qhov tob.

Pom zoo:

Koj yuav suav pes tsawg tus hais li cas?

Cov ntsiab lus tseem ceeb 1 mole ntawm cov khoom muaj 6.022 × 1023 hais. 6.022 × 1023 yog hu ua Avogadro Number los yog Avogadro Constant thiab muab lub cim NA (1) N = n × NA N = tus naj npawb ntawm cov khoom hauv cov khoom. Yuav kom nrhiav tau tus naj npawb ntawm cov particles, N, nyob rau hauv ib yam khoom: Nrhiav tus nqi ntawm cov khoom nyob rau hauv moles, n:

Muaj pes tsawg guanine bases puas yog 50 lub hauv paus khub ob txoj hlua DNA 100 bases tag nrho muaj yog tias nws muaj 25 adenine bases?

Yog li, muaj tag nrho ntawm 25 + 25 = 50 adenine thiab thymine hauv tag nrho. Qhov ntawd tawm 100− 50 = 50 seem hauv paus. Nco ntsoov tias cytosine thiab guanine daim ntawv cog lus nrog ib leeg, thiab yog li lawv sib npaug ntawm cov nyiaj. Tam sim no peb tuaj yeem faib los ntawm 2 kom tau txais tus lej ntawm guanine lossis cytosine hauv paus