Craville Studies
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They travelled in straight lines Opaque objects caused them to make a shadow They left the cathode at right angles to the surface They passed through thin metal foils without damaging them
The electrons travel from the cathode to the anode Cathode ray tubes use a low voltage Magnetic fields will distort the path taken by the rays Electric fields will distort the path taken by the rays
Black body radiation He was the first to discover radio waves Using an induction coil and a spark gap, he succeeded in generating and detecting electromagnetic waves He demonstrated radio waves had properties characteristic of light
1788 1838 1888 1938
Energy is not continuous, it is in discrete amounts called quanta Emission and absorption of black body radiation is quantised A photon can only transfer some or none of its energy, not all of it. Energy associated with radiation from black bodies is called photons
They remained best buddies Einstein was a pacifist Planck opposed Hitler They sorted out their differences by challenging each other on the TV show 'Germany's Brainiest Scientist.'
When heated they conduct by having electrons flow through the conduction band and negative holes flow through the valance band They act as an insulator at absolute zero. When heated they conduct electricity through both the conduction band and holes in the valance band Resistance decreases with increased temperature
Copper Silicon Aluminium Germanium
Broken semiconductor N-type semiconductor P-type semiconductor Superconductor
Transformer Valve Fan Heater None of the above
X-Rays cause cancer Metals were latticed Diamond's structure Periodic atomic structure of crystals
Ceramics Pure metals Alloys Metal oxides
Critical temperature Superconductivity temperature Activity point Critical point
They can't be used with AC Even the highest temperature superconductors are still too low to be practical They are all brittle Liquid nitrogen is not cold enough to be used on type 1 superconductors
Superconductivity Magnetic Levitation The Meissner Effect Magic
Superconductive Quantum Inference Devices Superconductive Quantum Universal Information Devices Superpowered Qualls Under Impending Doom A squid is a fish
Electricity Transmission Electricity Generation Computing Motors and Generators
MRIs Magnetometers Quantum Computers All of the above
YBCO Lead Thallium-Barium-Calcium Copper Oxide None of the above
