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WorksheetsNuclear physics
Total questions: 10
Worksheet time: 7mins
The energy emitted by the Sun is produced as a result
coal burning
the reaction cycle in which we get the helium nuclei from hydrogen nuclei
uranium nucleus fission reaction
pass electrons from higher shells to lower ones
It is able to penetrate radiation through human skin
alpha and beta
alpha and gamma
beta and gamma
alpha, beta and gamma
The unit of absorbed dose is
gray
sievert
becquerel
rem
In order for the chain reaction of uranium fission to take place in a nuclear reactor, should A/B arising from these C/D/E reactions.
A. accelerate
B. slow down
C. electrons
D. protons
E. neutrons
The task of the moderator in the nuclear reactor is
protection of employees against radiation
control of chain reaction speed
acceleration of electrons
deceleration of neutrons
A thermonuclear reaction is
fission of the atomic nucleus
beta decay
fusion
alpha decay
The half-life for beta-radioactive iodine I-131 is 8 days. After 40 days it will disintegrate
3,125% of this isotope
96,875% of this isotope
20% of this isotope
32% of this isotope
The most penetrating nuclear radiation is
gamma and neutron
beta
alpha
they are all penetrating
A beam of alpha radiation was directed between two electrified plates, the beam
will lean towards the positive plate
will lean towards the negative plate
it will not change its direction of movement
it will start circling the circle
The radioactive parent elements are
uranium, actinium, thorium
actinium, thorium, plutonium
uranium, thorium, neptune, plutonium
uranium, actinium, thorium, neptune
