GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A student reads that the force of gravity between two objects depends on the size of each object and the distance between them. What can the student infer about the movement of planets in the solar system based on the reading?
A
The force of gravity exerted by the Sun is different for each planet, causing the larger planets to move closer to the Sun than the smaller planets.
B
The force of gravity exerted by the Sun is different for each planet, causing the smaller planets to move closer to the Sun than the larger planets.
C
The force of gravity exerted by the Sun is different for each planet, causing the planets closest to the Sun to revolve faster than the planets farthest from the Sun.
D
The force of gravity exerted by the Sun is different for each planet, causing the planets farthest from the Sun to revolve faster than the planets closest to the Sun.
E
8.E.4A.1 Obtain and communicate information to model the position of the Sun in the universe, the shapes and composition of galaxies, and the measurement unit needed to identify star and galaxy locations.
Explanation: 

Detailed explanation-1: -The force of gravity increases with distance. The force of gravity exists in all objects having mass.

Detailed explanation-2: -That’s because the planets weigh different amounts, and therefore the force of gravity is different from planet to planet. For example, if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. That’s because Mercury weighs less than Earth, and therefore its gravity would pull less on your body.

Detailed explanation-3: -In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons. As these planets grew in the early solar system, they were able to capture smaller objects with their large gravitational fields.

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