Orders or magnitude allow physicists to compare very large and very small distances. The range of subatomic particles and fundamental forces are the cutting edge of modern physics.
By how many orders of magnitude is a whale (length approx. 20 m) larger than a fly (length 2 cm)?
A carbon nucleus has a diameter of and a lump of coal has a diameter of . By how many orders of magnitude are they different in size?
What is the name of the group of particles which make up all matter?
What is the name given to the six types of matter particles including electrons which can exist on their own?
How many quarks are needed to make up a proton or neutron?
What is the name given to the group of particles that mediate forces?
What are the four fundamental forces of nature?
Strong, weak, medium and zero
Electric, magnetic, gravity and gluon
Strong, weak, gravity and electromagnetic
What is the strong force responsible for?
Holding protons and neutrons together
Holding planets in orbit
Complete the sentence.
In beta decay the weak force converts...
A down quark to an up quark
A W boson to a Z boson
An alpha particle to a gamma particle
What is a positron?
A particle of slightly larger mass than an electron but with opposite charge
The antimatter particle of a proton
The antimatter particle of an electron