Physical Science Fall Semester Exam

Front

Where are stars created or "born"? Options: Main sequence, Nebula, Dwarf galaxy, black holes

Back

Nebula

Front

Which color of stars are the hottest? Options: red, blue, white, yellow

Back

blue

Front

A black hole is an object so dense and with so much gravity that even ___ cannot escape

Back

light

Front

What is the name of the explosion at the death of a supergiant? Options: neutron star, nebula, supernova, black hole

Back

supernova

Front

What type of nuclear reaction occurs in the core of the sun?

Back

fusion

Front

Where do most stars spend most of their life? Options: nebula, protostar, main sequence, red giant

Back

main sequence

Front

Which color has the longest wavelength? Options: Green, Red, Yellow, Blue

Back

Red

Front

Which waves on the electromagnetic spectrum have the longest wavelengths? Options: radio, infared, ultraviolet, gamma

Back

radio

Front

Which of the following is NOT evidence that the big bang occurred? Galaxies have a red shift which show they are moving away from us, Hubble Space Telescope has taken pictures of galaxies 13 billion light years away, Cosmic background microwave radiation shows that the universe is not at absolute zero, but instead a few Kelvins higher.

Back

The universe is contracting as shown by the blue shift of galaxies

Front

What is happening to the laser at point B?

Back

reflect