Suppose the Sun were suddenly to shrink in size but that its mass remained the same. According to the law of conservation of angular momentum, what would happen?

The Sun would rotate faster than it does now. More test answers on https://studyhippo.com/chapter-4-39279/

Based on the law of conservation of angular momentum, what would happen to a collapsing cloud of gas and dust–isolated in space with no external forces–as its size decreases? Choose one: A. The cloud will lose mass. B. The cloud will spin faster. C. The cloud will spin more slowly. D. The cloud will gain mass. E. The cloud will not be able to collapse at all.

B More test answers on https://studyhippo.com/solar-system-formation-exoplanets-chapter-7-hw-11-17-qs-and-asteroids-and-comets-chapter-12-hw-11-17-qs-39472/

Conservation of angular momentum means that a spinning body tends to:

keep spinning More test answers on https://studyhippo.com/exam-2-mastering-astronomy-missed-questions/

To conserve angular momentum, a collapsing cloud must spin faster. The law of conservation of angular momentum affects the cloud’s ability to continue its _______

collapse More test answers on https://studyhippo.com/solar-system-formation-exoplanets-chapter-7-hw-11-17-qs-and-asteroids-and-comets-chapter-12-hw-11-17-qs-39472/

The law of conservation of angular momentum

According to our theory of solar system formation, which law best explains why the solar nebula spun faster as it shrank in size? – The law of conservation of angular momentum – Einstein’s law E=mc2 – The law of universal gravitation – The law of conservation of energy More test answers on https://studyhippo.com/astro-ch-6-2-39668/

Law of conservation of angular momentum

An individual object can change its angular momentum only by transferring some angular momentum to or from another object–> Total angular momentum can never change Angular Momentum= Mass x Velocity x Radius More test answers on https://studyhippo.com/ast-101-exam-2-laws-of-astrophysics/

6) According to our theory of solar system formation, why do all the planets orbit the Sun in the same direction and in nearly the same plane? A) The original solar nebula happened to be disk-shaped by chance. B) Any planets that once orbited in the opposite direction or a different plane were ejected from the solar system. C) The laws of conservation of energy and conservation of angular momentum ensure that any rotating, collapsing cloud will end up as a spinning disk. D) The Sun formed first, and as it grew in size it spread into a disk, rather like the way a ball of dough can be flattened into a pizza by spinning it. E) Luck explains it, as we would expect that most other solar systems would not have all their planets orbiting in such a pattern.

Answer: C More test answers on https://studyhippo.com/astr-chapter-8-2-39661/

According to our theory of solar system formation, why do all the planets orbit the Sun in the same direction and in nearly the same plane? A) The original solar nebula happened to be disk-shaped by chance. B) Any planets that once orbited in the opposite direction or a different plane were ejected from the solar system. C) The laws of conservation of energy and conservation of angular momentum ensure that any rotating, collapsing cloud will end up as a spinning disk. D) The Sun formed first, and as it grew in size it spread into a disk, rather like the way a ball of dough can be flattened into a pizza by spinning it. E) Luck explains it, as we would expect that most other solar systems would not have all their planets orbiting in such a pattern.

C More test answers on https://studyhippo.com/astronomy-8-2-39683/

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Conservation Of Angular Momentum Flashcards, test questions and answers

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What is Conservation Of Angular Momentum?

Angular momentum conservation is a fundamental law of physics which states that the total angular momentum of a system remains constant over time. This law applies to any isolated system, meaning that no external forces are acting on it. Angular momentum can be described as the rotational equivalent of linear momentum, and is expressed in terms of the product of an object’s moment of inertia and its angular velocity. This quantity has many applications in both classical and quantum mechanics and has been used to explain phenomena such as planetary orbits, precession, gyroscopic motion, gravitation, etc. The conservation of angular momentum can be seen in everyday life as well as explained using physical laws. For example, when an ice skater spins with their arms outstretched they will spin faster when they bring their arms in close to their body this is because by decreasing their moment of inertia (the amount which resists changes in the body’s rotation) they have increased their angular velocity (the rate at which they rotate).