Unit 4 Quiz 1

Which is the correct ranks of energy level radiation from low to high based on the diagram?

• Gamma Ray, Visible, Infrared, Microwave

• Radio, Visible, Gamma Ray, Ultraviolet

• Visible, X-Ray, Infrared, Mircrowave

• Microwave, Visible, X-Ray and Gamma Ray

Why does a X-Ray technician leave the room when you get an x-ray?

• For fun

• To protect themselves from x-ray radiation and to prevent changes in the DNA

• To protect you from x-ray radiation and to change your DNA

Based on the diagram above, how you know the radiation sources are ranked from lowest to highest energy. 

• The shorter the wavelength the more energy the light has

• The higher the wavelength the more energy the light has

• The shorter the wavelength the less energy the light has

• The higher the wavelength the less energy the light has

When a wave strikes a solid barrier, it behaves like a basketball hitting a backboard. This wave behavior is called

• Constructive Interference

• Diffraction

• Refraction

• Reflection

When light goes from one medium to another and changes direction it is called

• Constructive interference

• Diffraction

• Refraction

• Reflection

What nuclear reaction does our sun use to generate energy?

• Nuclear Fission

• Nuclear Fusion

• Chemical Reaction

• Combustion

What is Nuclear Fusion?

•  Splitting of atoms, which releases tremendous amounts of energy

• Fusing of atoms, which releases tremendous amounts of energy

• Fusing Hydrogen atoms to form Helium atom, which release tremendous amounts of energy

• Splitting of atoms which does not release any energy

What is Nuclear Fission?

•  Splitting of atoms, which releases tremendous amounts of energy

• Fusing of atoms, which releases tremendous amounts of energy

• Fusing Hydrogen atoms to form Helium atom, which release tremendous amounts of energy

• Splitting of atoms which does not release any energy

Why do old main-sequence stars have a composition that is higher in helium, than in a young main-sequence stars?

• Old main-sequence stars have not exhausted their fuel of hydrogen and do not need to use the helium they fused to maintain the nuclear reaction going and the life of the star to continue.

• Old main-sequence stars have exhausted their fuel of hydrogen and now need to use the helium they fused to maintain the nuclear reaction going and the life of the star to continue.

Which type of star has a high surface temperature but is very dim?

• Red Dwarfs

• Main Sequence

• Blue Giants

• White Dwarfs