Nuclear Physics

Nuclear Physics

Multiple Choice

Nuclear physics is________

• the study of how nucleons interact with one another in a nucleus.

• is the study of how atoms interact with one another

Multiple Choice

Protons and Neutrons are called ______

• nucleus

• nucleons

• nuclei

Multiple Choice

Mass number is _____

• Protons and neutrons

• Protons only

• neutrons only

Multiple Choice

Atomic number is _____

• Protons and neutrons

• Protons only

• neutrons only

Multiple Choice

Isotopes have

• the same number of protons, but different number of neutrons

• the different number of protons, but same number of neutrons

Multiple Choice

The atomic mass unit is _____

• u

• g

• m

Multiple Choice

According to Einstein, mass and energy are equivalent

• True

• False

Multiple Choice

Which of the following is Einstein, equation of mass and energy?

• E=mc^2

• E=mc

• E=m^2 c

Multiple Choice

__________Is the attractive force that holds a nucleus together

• Electromagnetic force

• Strong nuclear force

• Atomic force

Multiple Choice

The strong nuclear force_________

• is always attractive

• is always repulsive

• can be both

Multiple Choice

What makes nucleus unstable?

• The competition between the repulsive electric forces and the attractive strong nuclear force

• The electrons in its atom

• The force of attraction for other atoms close to it

Multiple Choice

Which of the following is a true statement?

• Large nuclei are more stable than small nuclei

• Small nuclei are more stable than large nuclei

• The nucleus size has nothing to do with its stability

Open Ended

List one type of radioactive decay.

Multiple Choice

Nucleus gives off Beta particles when it ____

• emits helium nucleus

• emits photons

• emits electrons

Multiple Choice

_______________ is the splitting of an atom’s nucleus into two smaller nuclei

• Nuclear fusion

• Nuclear fission

• Nuclear fuse

Multiple Choice

Nuclear fission is used to ________

• filter water

• cool water

• generate electricity

Multiple Choice

Nuclear fusion reactions________

• occurs in powerplants

• occurs in the cores of sun and other stars.

• occurs in the cores of Earth and other planets

Multiple Choice

Fusion reactions require extremely high temperature.

• True

• False

Multiple Choice

Radioactive dating__________

• is a way to find out how old something is.

• is a way to find out the structure of living organisms.

• is a way to find out the chemical reactions in plants.

Open Ended

List two uses of radiation in medicine