Components of the Universe STAAR Review

Front

What is the relationship between frequency and wavelength in waves?

Back

High frequency waves have short wavelengths.

Front

What is a galaxy?

Back

A system of stars, gas, dust, and dark matter bound together by gravity.

Front

What is the frequency of infrared waves?

Back

10^12 Hz.

Front

What is the term for a natural satellite that orbits a planet?

Back

Moon.

Front

What is an asteroid?

Back

A small rocky body that orbits the sun, primarily found in the asteroid belt.

Front

What is a nebula?

Back

A giant cloud of dust and gas in space, often the birthplace of stars.

Front

What is dark matter?

Back

A form of matter that does not emit light or energy, making it invisible and detectable only through its gravitational effects.

Front

What is the main component of stars?

Back

Hydrogen, which undergoes nuclear fusion to produce energy.

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, including visible light, radio waves, and X-rays.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates energy through nuclear fusion.