Question

Information about five planets is shown in the table below.

Diameter (km)
4.88 × 10³
1.43 x 105
1.28 x 10¹
6.78 × 10³
1.21 x 105
Planet
Mercury
Jupiter
Earth
Mars
Saturn
Mass (kg)
3.3 x 1023
1.898 × 1027
5.97 x 1024
6.42 x 1023
5.68 × 1026
a) Write down the name of the planet with the greatest mass.
b) Work out the radius of Mercury giving your answer as an ordinary number.

Answer 1

Jupiter has the greatest mass of 1.898 × 10²· kg. The radius of Mercury is 2.44 × 10³ km, which is 2.44 × 10¶ m or 2440 km.

Step-by-step explanation:

The question posed is related to the basic Physics of planetary masses and radii. To answer the questions:

1. The planet with the greatest mass among the given options is Jupiter, with a mass of 1.898 × 10²· kg.
2. To calculate the radius of Mercury, we take its diameter of 4.88 × 10³ km and divide by two. Therefore, the radius of Mercury is 2.44 × 10³ km, or converting to meters for more standard units, 2.44 × 10¶ m (2440 km).