Magnetism
Gbogbo ọrọ náà
Hold two magnets close and you feel something push back through empty air. Nothing touches, yet the force is real and you can map exactly where it acts and which way it points.
In this lesson you will learn what a magnetic field line means, how to plot the field around a bar magnet and between two of them, and how a pair of magnets can be arranged to give a region where the field is the same everywhere.
Ebumnobi
- Understand the term magnetic field line
- Investigate the magnetic field pattern for a permanent bar magnet and between two bar magnets
- Describe how to use two permanent magnets to produce a uniform magnetic field pattern
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 Magnetism. 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.
- Outside a bar magnet, magnetic field lines point: A) From south to north B) From north to south C) Always towards the nearest pole D) In no fixed direction Answer: B
- Which pair of poles will repel each other? A) North and south B) South and north C) North and north D) They always attract Answer: C
- On a field diagram, lines that are close together show: A) A weak field B) A strong field C) A uniform field D) A neutral point Answer: B
- Which of these materials is magnetic? A) Copper B) Aluminium C) Nickel D) Brass Answer: C
- A uniform magnetic field is drawn as: A) Curved lines that get closer together B) Parallel, equally spaced lines pointing the same way C) Closed loops around a single pole D) Lines that cross at right angles Answer: B
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 Magnetism? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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