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WorksheetsFundamental Forces Y13
Total questions: 12
Worksheet time: 6mins
Which three forces are explained by the standard model of particle physics?
strong, weak, electromagnetic
strong, weak, gravity
strong, gravity, weak
electromagnetic, weak, gravity
What particles does the strong force act on?
quarks
leptons
quarks and leptons
particles with charge
What is the weak force responsible for?
holding nucleons together in the nucleus
beta decay (changing quark flavour)
electrostatic repulsion and attraction
gravity
What is the force carrier for the strong force?
graviton
photon
W and Z bosons
gluons and pions
What are the force carriers for the weak force?
W and Z bosons
hadrons
photons
pions
What range does the strong force have?
10−15 m (about the radius of a nucleon)
10−18 m (about the radius of a quark)
infinite
If the strong force has a relative strength of 1, what is the relative strength of the weak force?
10−6
1/137
negligible
Which two fundamental forces obey an inverse square law?
strong and gravi
gravity and electromagnetic
electromagnetic and weak
strong and weak
What conservation law does the weak force violate?
charge
baryon number
lepton number
strangeness
If an interaction involves no leptons and no charged particles, it is probably a...
strong interaction
weak interaction
electromagnetic interaction
any interaction
If a neutrino is involved in an interaction, the interaction is...
strong
weak
electromagnetic
any
If an interaction involves charged leptons, the interaction could be either...
strong or weak
weak or electromagnetic
electromagnetic or strong
