Big Bang Theory and Nuclear Reaction Unit III Test

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

Light emitted from a star or galaxy can be separated into a band of colors, called a ________.

• Red Shift

• Wave Length

• Spectrum

• Microwave

As galaxies move away from our galaxy

a shift on the electromagnetic spectrum

(EMS) is noticed. This phenomena is

called _____________.

• redshift

• blueshift

• unshift

• blackshift

What were the original two elements in our universe?

• Lithium and Carbon
• Hydrogen and Neon
• Helium and Chlorine
• Hydrogen and Helium

Spectroscopes can tell us all of these about except...

• Temperature of a star
• Elements that make up a star
• Age of a star
• Size of a star

The energy from the sun is created by a process called:

• nuclear fission
• nuclear fusion
• nuclear reaction
• nuclear core

What are the products of a nuclear fusion reaction?

• A new element

• A new element plus mass

• A new larger element plus energy

• A new smaller element plus energy

How do nuclear power-plants work?

• Fusion
• Half-life
• Fission
• Fusion or fission

Which atoms combine together during fusion reaction on the sun?

• Helium and Hydrogen atoms
• Hydrogen atoms
• Hydrogen and Lithium atoms
• Hydrogen and Carbon atoms

Do all stars make energy through fusion?

• Yes
• No
• Just our sun
• Only large stars