DHS PS Ch 20 (2018/2019)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | nucleus
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| What causes protons and neutrons to be attracted to each other in the nucleus? | show 🗑
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| Describe the characteristics of the strong force: | show 🗑
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| When is the strong force the most powerful? | show 🗑
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| To what degree are protons and neutrons held by the strong force in a large nucleus? | show 🗑
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| show | the electric force
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| show | when the strong force is not large enough to hold a nucleus together tightly and the electric force causes protons to repel.
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| What are the four fundamental forces? | show 🗑
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| show | the strong force
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| show | gravity
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| When nucleuar decay happens because the strong force is not large enough to hold the nucleus together this is called? | show 🗑
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| show | isotopes
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| A nucleus with too many or too few neutrons compared to protons is considered? | show 🗑
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| show | the number of protons in an atom
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| show | the number of protons and neutrons in a nucleus
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| Isotopes have? | show 🗑
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| The size of a nucleus compared to the size of an atom could be compared to? | show 🗑
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| Protons do not repel each other in the nucleus because of the? | show 🗑
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| show | radioactive
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| show | the electric force overpowers the strong force releasing mass and energy.
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| show | a short-range force
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| show | alpha particle
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| The process of changing one element to another through nuclear decay is? | show 🗑
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| show | beta particle
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| show | gamma ray
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| show | half-life
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| What are three types of nuclear radiation? | show 🗑
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| show | a sheet of paper
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| show | if they are released by radioactive atoms inside the human body through breathing or ingestion.
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| Explain how smoke detectors use alpha particles: | show 🗑
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| Explain how the atomic and mass numbers of an element change after alpha decay: | show 🗑
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| Describe what occurs during beta decay: | show 🗑
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| show | because it gains one more proton, it changes to an element with one greater atomic number while the mass remains the same.
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| show | a sheet of aluminum
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| show | whenever alpha or beta decay happens
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| show | lead or concrete
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| What is a daughter nucleus? | show 🗑
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| Radioactive dating uses the half-life of different carbon-14 to test the ____ of a young sample. | show 🗑
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| show | cells (biological cells are large and delicate)
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| Gamma particles _____. | show 🗑
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| When a neutron turns into a proton in a nucleus, what sort of particle is emitted? | show 🗑
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| The proocess in which an atom loses radiation and becomes another element is known as? | show 🗑
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| Which form of nuclear radiation is used in smoke detectors? | show 🗑
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| show | two protons and two neutrons
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| When particles and energy are released from a decaying nucleus it is called? | show 🗑
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| show | soils, rocks, atmosphere, or any other natural thing.
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| One type of radioactive device that directly indicates the intensity of radiation with a clicking sound that increases in frequency as more radiation is present is a(n) _______. | show 🗑
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| What source makes up the most background radiation that humans are exposed to? | show 🗑
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| show | there is no strategy that can prevent it
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| What directly measures radioactivity by producing an electric current when radiation is present? | show 🗑
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| Where is radon gas produced? | show 🗑
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| What is the process of splitting a nucleus into two nuclei with smaller masses? | show 🗑
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| What is an ongoing series of fission reactions called? | show 🗑
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| When two nuclei with low masses are combined to form one nucleus of larger mass it is called? | show 🗑
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| When does nuclear fusion happen? | show 🗑
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| show | fission splits a larger nucleus into two smaller ones; fusion takes two smaller nuclei and combines them to form a larger one
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| show | the uranium splits tinto two smaller nuclei
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| show | a mall amount of mass can be converted to an enormous amount of energy E = mc2
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| show | H nuclei combine to form He nuclei releasing lots of energy
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| What isotope is used to diagnose thyroid problems? | show 🗑
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| show | 1). radiation can be placed near cancer cells causing them to die or stop growing 2). Intense beams of gamma rays from Co-60 can be focused on the tumor
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| Only nuclei with _______ atomic numbers can undergo fission? | show 🗑
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| show | He-3
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| show | divides or splits
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| show | tracers
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| What is the term for an ongoing series of nuclear reactions? | show 🗑
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| show | fusion
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| show | being struck with a neutron
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| The most penetrating type of radiation is the? | show 🗑
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| A helium nucleus with tow protons and two neutrons is called a? | show 🗑
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| When a strong force is not sufficient to hold unstable nuclei together permanently, ___? | show 🗑
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| Negatively charged paticles emitted from a nucleus at a high speed are? | show 🗑
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| The process by which nuclei having low masses are united to form nuclei with larger masses is? | show 🗑
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| What are the three types of nuclear radiation in increasing order of penetrating power? | show 🗑
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| show | 1:1
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| Radioactive tracers are useful in? | show 🗑
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| Both fusion reactions and a fission reaction produce? | show 🗑
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| show | the same number of protons, but a diffeent number of neutrons
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| You could describe the strong force as what type of force? | show 🗑
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| show | overpowers
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| Elements with an atomic number over 83 are? | show 🗑
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| show | 3:2
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| show | fusion is much more powerful
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
pherriman
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