EOQ P2,4,6 Dec.2024

Front

What is the only section of the electromagnetic spectrum that we can see?

Back

Visible Light

Front

Why do scientists use the light-year unit to measure distances in space?

Back

A light-year unit is very large and distances in space are very large.

Front

What keeps planets in orbit around the Sun?

Back

The Sun's gravitational force.

Front

In which medium can sound not travel?

Back

Vacuum.

Front

What is the disturbance involving energy transfer from one place to another?

Back

Wave.

Front

What is the definition of a light-year?

Back

A light-year is the distance that light travels in one year.

Front

What is the primary force that governs the motion of celestial bodies?

Back

Gravitational force.

Front

What is the difference between a wave and a vibration?

Back

A wave is a disturbance that transfers energy through a medium, while a vibration is a rapid back-and-forth motion.

Front

What are the three main types of waves?

Back

Transverse waves, longitudinal waves, and surface waves.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second.