Science Review Flashcard 2

Front

What are electromagnetic waves that help your body produce vitamin D called?

Back

Ultraviolet rays

Front

What is the chemical symbol for sodium?

Back

Na

Front

What type of galaxy is characterized by a spiral shape?

Back

Spiral galaxy

Front

What is the correct order of electromagnetic waves from longest wavelength to shortest?

Back

Radio, Micro, Infrared, Visible, Ultraviolet, X-ray, Gamma

Front

What type of galaxy is described as having an elliptical shape?

Back

Elliptical galaxy

Front

What is the primary source of ultraviolet rays?

Back

The Sun

Front

What is the significance of ultraviolet rays for human health?

Back

They help in the production of vitamin D.

Front

What are the three main types of galaxies?

Back

Spiral, Elliptical, Irregular

Front

What is the visible spectrum?

Back

The range of electromagnetic waves that can be seen by the human eye.

Front

What is the difference between X-rays and gamma rays?

Back

X-rays are produced by electronic transitions, while gamma rays are produced by nuclear transitions.