Science Double Award - 4SD0 PearsonEdexcel

Physics: Radioactivity And Particles: Units

Gbogbo ọrọ náà

Radioactivity calculations use time and activity, so you need to be comfortable converting between seconds, minutes and hours, and you need to understand the becquerel as the unit of radioactive decay rate.

This reference covers the five units for the radioactivity section of the Edexcel specification: becquerel, centimetre, hour, minute and second.

Ebumnobi

  1. Use the following units: becquerel (Bq), centimetre (cm), hour (h), minute (min) and second (s)

Akọmọ Ojú-ẹkọ

Unlike most physics sections, radioactivity introduces a new unit - the becquerel - specifically for measuring how many nuclei decay each second. The section also uses centimetres (for penetration distances) and multiple time units because half-lives range from fractions of a second to billions of years, and both decay-rate calculations and penetrating-power experiments turn up in exam questions built entirely around these five units.

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Physics: Radioactivity And Particles: Units. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. One becquerel is equal to: A) 1 decay per minute B) 1 decay per second C) 1 decay per hour D) 100 decays per second Answer: B
  2. A source has a half-life of 30 minutes. After 90 minutes the activity will have decreased to: A) 1/2 of the original B) 1/4 of the original C) 1/8 of the original D) 1/16 of the original Answer: C
  3. The unit used to measure the thickness of an absorber in a radiation experiment is: A) metre B) centimetre C) millimetre D) kilometre Answer: B
  4. How many seconds are in 1.5 hours? A) 90 B) 900 C) 5400 D) 9000 Answer: C
  5. Activity is measured in: A) Coulombs B) Hertz C) Becquerels D) Watts Answer: C

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Meecha Ajụjụ Ule Ọmarịcha

Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Physics: Radioactivity And Particles: Units? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

Dawunlodi Ẹpp naa lori Google Playstore.

Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.

Green Bridge CBT Mobile App
Personalized AI Ẹ̀kọ́ Ọ̀rọ̀ Alábàápàdé.
Egbò ọdúnrún IGCSE, JAMB, WAEC & NECO Ajùmọ̀ṣe ìbéèrè ti kọjá.
Ihe karịrị 1200 Nkọwa Nkuzi
Tallafi Ba Tare da Layin Intanet Ba - Koyi Duk Lokaci, Ko'ina
Jadawalin Gada Kore
Akọkọ akọle iwe & Ibeere agbara
Sọfụma Ọrụ Gi & Ọganihu Gi
Ìtọ́jú Ìtúmọ̀ fún Ẹ̀kọ́ Alábáyọrí.