Define - Astronomical unit.

One Line Answer

One astronomical unit is defined as the average distance between the earth and the sun.

1 AU = 1.496 5 10⁶km = 1.496 × 10¹¹m.

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Measuring Larger Distances

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Chapter 1: Measurement - Evaluation [Page 11]

Chapter 1 Measurement
Evaluation | Q IX. 5. | Page 11

Light year is the unit of ______.

Give the value of one light year.

The materials with lower density are called ______.

The area of irregularly shaped figures can be calculated with the help of a ______.

The CGS unit of density is ______.

If the density of a solid is lower than that of a liquid it ______ is that liquid.

1 Light year = 9.46 x 10⁵ m.

One light-year is defined as the distance traveled by light in a W vacuum during the period of one year.

Match the following:

Write the units which are used to measure long distances.