Year 12 Physics Standard Model & Relativity

The LHC has particles with speeds up to 0.99999c. Which property of the LHC needs to alter to cater for this?

rest length refers to the length of an object

Particle X has a lifetime of 4 ms in its own frame. If it is travelling at 0.7c, the observed lifetime would be about

One of the two postulates Einstein proposed in his theory of Special Relativity is:

the particles which mediate forces are known as

a Frame of Reference is a term used to describe

Muons decay in the atmosphere with a rest lifetime of about

Hubble's law relates

Muons reach the surface of the earth (as observed from earth) because

The four fundamental forces of nature are:

a meson is a

Einstein's thought experiments were known as Gedanken experiments

conservation of quantum number involves

the weakest of the 4 forces is

According to Einstein, the fourth dimension is 'space-time'

the previously held model of the cosmos (prior to the big bang) was

The big bang model predicts the age of the universe to be about

one piece of evidence of the big bang model is

the energy gained by an electron through 1000 V of potential difference is equal to

There is no way of telling how fast you are going unless you can see things around you.

As particles travel faster and faster, close to the speed of light, the momentum of the particle approaches

A ship travels south at 8 kph. A seagull flies north at 13 kph. What is the relative speed of the gull from the ship?

the force carrier for the strong nuclear force is the

at low speeds the observation of two events in different frames of reference happening at the same time, is known as?

The experiment which categorically showed that the ether is not real was the

all particles are either

The total energy of a particle is given by:

the factor by which time is dilated, length is contracted and momentum is dilated is known as

particle accelerators use magnetic fields to accelerate particles

The Michelson-Morley experiment used a device called an

the reversal of arrows on a Feynman diagram indicate

The inflationary period relates to

a neutron consists of a

A satellite at 0.8c away from earth ejects a probe away from earth at 0.4c. The speed of the probe as seen on earth is: