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WorksheetsFundamental Particles of Matter
Total questions: 20
Worksheet time: 16mins
Atoms or elements consist of _____ and _____ in their nuclei
protons and neutrons
protons and electrons
electrons and neutrons
nucleus
The Up Quark has a ____ while The Down Quark has a ____ electrical charge.
positive (+) ; positive (+)
negative (−) ; positive (+);
positive (+); negative (−)
negative (−) ; negative (−)
The Proton is made up of __
one Up Quark and two Down Quarks
two Up Quark and two Down Quarks
one Up Quarks and one Down Quark
two Up Quarks and one Down Quark
The resulting electrical charge of the Neutron is:
(+2/3) + (+2/3) + (−1/3) = (+1).
(+2/3) + (−1/3) + (−1/3) = (0).
(+2/3)
(−1/3) + (1/3) = (0)
Why is a neutrino so difficult to detect?
It travels at velocities faster than the speed of light
It has no electrical charge, so it does not affect nearby particles
It doesn't really exist
It has an electrical charge of (−1) and plays an active role in chemical reactions.
The anti-particle of the electron is known as
Anti-leptons
positrons
hadrons
fermions
Electrons and neutrinos are known as the family of ___
Leptons
Hadrons
Fermions
Baryons
What makes something radioactive?
an unstable nucleus
elements which have higher atomic number
neutral atom
no answer
How does radioactive material generate electricity?
the decay of Uranium create enough forces to turn turbines directly
the explosion of unstable atom create enough forces to turn turbines directly
no answer
the heat generated during fission creates steam that powers electricity generating turbines
Which of the following typically poses the biggest health threat to humans?
alpha particles
beta particles
gamma rays
they all pose threats. It depends on the situation in question.
Who was the first person to discover radioactivity?
Marie Curie
Albert Einstein
Henri Becquerel
Alexander graham bell
What does the term "half-life" mean in reference to radioactive material?
the amount of time it takes for a radioactive atom to decay
the amount of time it takes for half of a given sample of a radioactive material to decay
the process for half of a given sample of a radioactive material to decay
the process for a radioactive atom to decay and then renew itself
Lead can block which type of radiation?
alpha only
beta only
alpha and beta
alpha, beta and gamma
What apparatus is used to measure radiation?
Geiger - Muller tube
Einsten - Newton tube
Muller finding machine
radiometer tube
The half-life of cobalt-60 is 5 years. If there are 100 g of cobalt-60 in a sample, how much will be left after 15 years?
6 gram
12,5 gram
25 gram
50 gram
What is the half-life of a sample where the activity drops from 1,200 Bq down to 300 Bq in 10 days?
1 day
2 days
5 days
10 days
Carbon-14 decays into Nitrogen-14 with a half-life of 5730 years. If you started with 100 grams of Carbon-14 today, at what time would there be only 25 grams of Carbon-14 remaining?
5730 years
11460 years
17190 years
22920 years
Isotopes of the same element have a different number of what atomic particles?
protons
electrons
neutrons
quark
Which particle is emitted by bismuth according to the nuclear equation below?
alpha particle
beta particle
gamma ray
no answer
Alpha and beta particles are _________ so they are deflected in opposite directions when they pass through an electric field.
neutral
charges
electrons
uncharged
