Physics Specification Questions

Overview of difficult parts of the spec

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  • Created by: geeraf97
  • Created on: 30-11-14 16:24
What is the range of the strong nuclear force?
Repellant from 0-0.5fm and attraction from 0.5-3fm.
1 of 28
Is a neutrino or an anti-neutrino produced in Beta - decay?
An antineutrino
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What is the equation for the energy of a photon?
E=hf
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What causes pair production?
A high energy photon
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What occurs in Beta+ decay?
Proton to neutron, positron and neutrino
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Name all the hadrons
Proton, neutron, antiproton, antineutron, K mesons and Pi mesons
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Name the types of quarks
Up, Down and Strange
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What is the quark structure of a neutron?
UDD
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What is the quark structure of a meson?
One quark and one antiquark
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What is conserved in strong force interaction?
The baryon number, the lepton number and charge
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What is the work function?
The minimum amount of energy needed to remove an electron from the surface of a metal.
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What is electron excitation caused by?
Light behaving like a particle transferring energy to a surface electron in a metal causing it to leave the metal.
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What characteristics of light suggest that it is a wave?
Diffraction, refraction, reflection etc.
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What characteristics of light suggest it is a particle?
The photoelectric effect
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What is potential difference?
The work done per unit charge
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What is current?
The rate of flow of charge
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What is ohms law?
That voltage and current are directly proportional
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What is resistivity?
It's a property of a material that does not depend on the object (shape or size)
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A superconducter has no resistance below the what?
The critical temperature (often below 0 degrees celcius)
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To begin a car engine you need?
A very high current and low internal resistance
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Name a use of a potential divider
Street lights use potential dividers so they come on when it gets darker
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In an oscilliscope what do the X plates control?
The continuous movement of the electron beam from left to right.
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What do oscilliscopes show?
The wave forms of different currents
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Where is the time base found on an oscilloscope screen?
Along the X axis
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What is conserved in a simple dc circuit?
Charge and energy
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Name some uses of a superconductor
Power cables or very strong electromagnets
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what is emitted when an electron de-excites?
A photon
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In Beta - decay which quark change takes place?
A down quark to an up quark
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Other cards in this set

Card 2

Front

Is a neutrino or an anti-neutrino produced in Beta - decay?

Back

An antineutrino

Card 3

Front

What is the equation for the energy of a photon?

Back

Preview of the front of card 3

Card 4

Front

What causes pair production?

Back

Preview of the front of card 4

Card 5

Front

What occurs in Beta+ decay?

Back

Preview of the front of card 5
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