Test
Physics-P2-Isotopes, Radiation: Alpha, Beta and Gamma, Fission and Fusion, Half-Life, Life Cycle of Stars
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Preguntas del test (14)
1Isotopes are different forms of the same element.
- AVerdadero
- BFalso
2What is the difference between isotopes?
- AIsotopes have a different number of protons and a different number of neutrons.
- BIsotopes have a different number of neutrons and the same number of protons.
- CIsotopes have a different number of protons and the same number of neutrons.
3Alpha radiation particles have ________ and ________
- ATwo neutrons.
- BTwo protons.
- COne neutron
- DThree protons
- ETwo electrons
4What properties are typical of a Beta particle?
- AThey have a charge of -1.
- BThey are large.
- CThey move fast.
- DThey move slowly.
- EThey are small.
- FThey have a charge of 0.
- GThey are in simple terms, a neutron.
5Gamma rays are long wavelength electromagnetic waves.
- AVerdadero
- BFalso
6Nuclear fusion is the process carried out in nuclear power stations to generate energy.
- AVerdadero
- BFalso
7Which process releases more energy, Fission or Fusion?
- AFission.
- BFusion.
8Nuclear fusion is done in stars such as the sun.
- AVerdadero
- BFalso
9What happens in the process of nuclear fission?
- AA chain reaction takes place.
- BNuclei are split up.
- CNuclei are joined together.
- DThe energy released is used to heat water, to create steam for generators.
- EThe energy released is used to turn the turbines in wind turbines.
10What stage of it's life is our sun at?
- ARed giant.
- BBlack hole.
- CProtostar
- DMain sequence star
11What elements are used in the energy process in stars at our sun's stage?
- AHelium.
- BUranium-235.
- CPlutonium-239.
- DHydrogen.
- EIron.
12What happens after the red giant stage of a star's life?
- AA supernova takes place as the star explodes.
- BA neutron star is created.
- CA black hole is created.
- DA white dwarf is created.
- EA black dwarf is created.
- FA planetary nebula is ejected around the star system, from the outer layer of the star.
13Half life is the average time it takes for the number of nuclei in an isotope to halve.
- AVerdadero
- BFalso
14What is radiation used for in medical practises?
- AAbortion of babies.
- BSterilising instruments.
- CTracers, followed by an external detector.
- DRadiotherapy, the killing of cancerous cells.
- EThe sterilisation of the mouth in extreme dental cases.
Información
- Descripción
- It's basically all of physics 2B in the revision guides
- Autor
- Bradley Logan
- Idioma
- English
- Visitas
- 69
- Etiquetas
- Valoración
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