Unit #5 Test Review

What are in galaxies?

• ice and rock
• dust, gas, and star
• stars and ice
• water and dust

The blue section of the wave is measuring _________________.

• wavelength
• crest
• trough
• amplitude 

The blue section of the wave is measuring _________________.

• wavelength
• crest
• trough
• amplitude 

The acronym (letters) used to remember visible light is____________

• KTPERRY
• ROYGBIV
• DOGPOUND
• ROMERO

Wavelengths on the right side of this EM spectrum diagram are ______________.

• short
• long
• average

The shortest wavelength in visible light is______.

• violet
• red
• blue
• yellow

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

Which part of the electromagnetic spectrum has high enough energy to cause damage to eyes and skin, and sometimes even cancer?

• Infrared Rays
• Radio Waves
• Microwaves
• Ultraviolet Rays

What is not a galaxy?

• Optical Galaxy
• Spiral Galaxy
• Elliptical Galaxy
• Irregular Galaxy

What galaxy has young bright stars?

• irregular galaxy
• spiral galaxy
• the sun
• elliptical galaxy