Question

(B) Look at the table and answer the given questions

Planets Mercury Venus Earth Mars
Mass (Kg) 3.30 × 1023 4.47 × 1024 5.97 × 1024 6.42 × 1023

Planets Jupiter Saturn Uranus Neptune
Mass (Kg) 1.90 × 1027 5.69 × 1026 8.68 × 1025 1.02 × 1026

(6) Write the masses of the Earth and Saturn in usual numbers.
(7) Arrange the planets in the ascending order of the masses.
(8) Add the masses of Uranus and Neptune.
(9) What is the difference in the masses of Jupiter and Mercury?
(10) Write the ratio of the masses of Saturn and Venus.
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Answer 1

Step-by-step explanation:

To weigh a planet, scientists need to know two things: how long it takes objects to orbit the planet and how far away those objects are from the planet. The time it takes an object to orbit a planet depends on its distance from the planet and the planet’s weight.

illustration of a planet on a scale

In real life, we can’t pick up a planet and put it on a scale. However, scientists do have ways to figure out how much a planet weighs. They can calculate how hard the planet pulls on other things. The heavier the planet, the stronger it tugs on nearby objects—like moons or visiting spacecraft. That tug is what we call gravitational pull.

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