Question 1

How many kilometers are in a mile?

Accepted Answer

1 mile equals approximately 1.60934 kilometers.

Question 2

How many feet are in a meter?

Accepted Answer

1 meter equals approximately 3.28084 feet.

Question 3

What is a light-year?

Accepted Answer

A light-year is the distance light travels in one year in vacuum: approximately 9.461 × 10¹⁵ meters (5.879 × 10¹² miles). Despite the name, it measures distance, not time.

Question 4

What is an angstrom?

Accepted Answer

An angstrom (Å) equals 10⁻¹⁰ meters (0.1 nm). It is commonly used to express atomic and molecular dimensions, as well as wavelengths of visible light (4,000–7,000 Å).

Picometer to Astronomical Unit

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