Motion In The Universe
Akopọ
From the Moon circling the Earth to distant comets swinging past the Sun, every orbit in the universe is governed by gravity. Understanding how gravitational field strength varies and how orbital speed relates to radius and period lets you describe motion at every scale.
In this lesson you will learn about the structure of the universe, why gravitational field strength differs between planets, how gravity keeps objects in orbit, the differences between the orbits of comets, moons and planets, and how to calculate orbital speed.
Awọn Afojusun
- Know that the universe is a large collection of billions of galaxies and a galaxy is a large collection of billions of stars
- Understand why gravitational field strength g varies and know that it is different on other planets and the Moon
- Explain that gravitational force causes moons to orbit planets, planets to orbit the Sun, artificial satellites to orbit the Earth and comets to orbit the Sun
- Describe the differences in the orbits of comets, moons and planets
- Use the relationship between orbital speed, orbital radius and time period
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 Motion In The Universe. 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.
- A galaxy is: A) A single star B) A collection of billions of stars C) A collection of planets D) Another word for the universe Answer: B
- Gravitational field strength on the Moon is about: A) 9.8 N/kg B) 25 N/kg C) 1.6 N/kg D) 3.7 N/kg Answer: C
- What shape is a comet's orbit? A) Circular B) Elliptical C) Straight line D) Square Answer: B
- Orbital speed is calculated using: A) v = rT B) v = 2 pi r / T C) v = T / 2 pi r D) v = r / T Answer: B
- What force keeps planets in orbit around the Sun? A) Magnetic B) Electrostatic C) Gravitational D) Friction 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 Motion In The Universe? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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