Forces And Motion: Units
Gbogbo ọrọ náà
Physics problems fall apart when the units are wrong. A speed given in kilometres per hour cannot be plugged straight into an equation that expects metres per second, and a force stated without its unit is just a number. Knowing which unit belongs to which quantity is the first step in every calculation.
This reference covers the nine SI and derived units you need for the Forces and motion section of the Edexcel specification: kilogram, metre, metre per second, metre per second squared, newton, second, newton per kilogram, newton metre, and kilogram metre per second. You will practise recalling them quickly and converting between related forms.
Ebumnobi
- Use the following units: kilogram (kg), metre (m), metre/second (m/s), metre/second2 (m/s2), newton (N), second (s) and newton/kilogram (N/kg)
- Use the following units: newton metre (Nm), kilogram metre/second (kg m/s)
Akọmọ Ojú-ẹkọ
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.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Forces And Motion: 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.
- What is the SI unit of force? A) kg B) m/s C) N D) J Answer: C
- Which unit measures gravitational field strength? A) N B) N/kg C) kg m/s D) m/s2 Answer: B
- Momentum is measured in: A) N m B) kg m/s2 C) kg m/s D) N/kg Answer: C
- A speed of 90 km/h is equivalent to: A) 9 m/s B) 25 m/s C) 90 m/s D) 250 m/s Answer: B
- The moment of a force is measured in: A) N B) N/kg C) N m D) kg m/s 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.
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.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Forces And Motion: Units? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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