Physics: Astrophysics: Units
Akopọ
Astrophysics uses exactly the same units as the rest of mechanics, but stretched to sizes that no laboratory ever meets. The Sun is a hundred and fifty thousand million metres away, a year is thirty million seconds long, and gravitational field strength changes completely depending on which world you happen to be standing on.
This lesson covers the kilogram, metre, second, metre per second, metre per second squared, newton and newton per kilogram as they are used in astronomy. You will practise standard form, convert astronomical times and distances into SI units, and use unit checks to catch the sort of error that a very large number hides well.
Awọn Afojusun
- Use the following units: kilogram (kg), metre (m), metre/second (m/s), metre/second2 (m/s2), newton (N), second (s), newton/kilogram (N/kg)
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Physics: Astrophysics: Units. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- The SI unit of gravitational field strength is the: A) Newton B) Newton per kilogram C) Kilogram per newton D) Metre per second Answer: B
- The distance 384 000 km written in metres in standard form is: A) 3.84 x 10^5 m B) 3.84 x 10^6 m C) 3.84 x 10^8 m D) 3.84 x 10^11 m Answer: C
- A light-year is a unit of: A) Time B) Distance C) Speed D) Brightness Answer: B
- An astronaut of mass 80 kg stands on a moon where g is 2.0 N/kg. Her weight there is: A) 40 N B) 80 N C) 160 N D) 784 N Answer: C
- Approximately how many seconds are there in one year? A) 3.15 x 10^5 s B) 3.15 x 10^6 s C) 3.15 x 10^7 s D) 3.15 x 10^9 s Answer: C
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Physics: Astrophysics: Units? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
Ṣe igbasilẹ ohun elo naa lori Google Playstore
Gbogbo ohun ti o nilo lati ṣe dara julọ ninu JAMB, WAEC ati NECO.
