Motion In The Universe
Muhtasari
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.
Malengo
- 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
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Motion In The Universe. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- 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
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Motion In The Universe? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
