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the buoyancy of waterfind a metal can like a coffee can or a cigarette tin which has a tightly fitting cover with the cover on push the can into a
kara brought 23 with her when she went shopping she spent 327 for lunch and 1498 on a shirt how much money does she have leftthe two items that kara
what determines sinking and floatingshape a piece of lead tin or aluminium foil into the form of a little boat and float it on the water in a pan now
model water wheelsa meat skewer or a knitting needle can be used as an axle an old typewriter ribbon- spool or a sticking plaster reel is useful as a
a model reaction water turbineuse a soda water bottle from which the bottom has been separate wind string around it near the bottom end and suspend
experimental evidence for the existence of the atomic nucleus comes from1 millikans oil drop experiment2 atomic emission spectroscopy3 the magnetic
round 14851 to the nearest tenththe tenths place is the rst number to the right of the decimal here the number 8 is in the tenths place to decide
when an electron jumps from lower to higher orbit its energy1 increases2 decreases3 remains the same4 none of theseans
simple hydraulic pressthe principle of the hydraulic press is illustrated by the following modelhalf fill a cylindrical jar with water pour melted
when an electron drops from a higher energy level to a low energy level then1 atomic number decreases2 energy is absorbed3 atomic number increases4
making a model hydraulic elevatorsome freight and passenger elevators are increased by water pressure you can make a model of one of these with an
water will not compressfit a soda water bottle with a one-hole stopper by the stopper place the glass tube from a medicine dropper narrow end up fill
raising heavy weights by water pressureget a rubber hot-water bottle put a one- hole stopper carrying a short glass tube tightly in the neck punch a
the wavelength of a spectral line for an electronic transition is inversely related to1 the number of electrons undergoing the transition2 the
upward and downward pressure are the same at any given depthget a glass cylinder at least 15 cm long and 4 cm in diameter such a length of tube can
water pressure is the same in all directionspunch holes around the base of a tall tin can with a nail wrap the holes as above with a strip of tape
another way to show that water pressure increases with depthsearch a tall tin can punch holes up the side of the can about 3 cm apart put a strip of
electron occupies the available orbital singly before pairing in any one orbital occurs it is1 paulis exclusion principle2 hunds rule3 heisenbergs
existence of positively charged nucleus was established by1 positive ray analysis 2 alpha -ray scattering experiments x-ray analysis4
1 identify ten diagnostic medical term that use diagnostic note the suffixes and provide the definitions2 then identify ten related procedural
bohr model of an atom could not account for1 emission spectrum 2 absorption spectrum 3 line spectrum of hydrogen 4fine
energy of orbit1 increases as we move away from nucleus 2 decreases as we move away from nucleus 3 remains same as we move away from
the spectrum of he is expected to be similar to 1 h 2
which one of the following is not the characteristic of plancks quantum theory of radiation1the energy is not absorbed or emitted in whole number or
when beryllium is bombarded with alpha -particles extremely penetrating radiations which cannot be deflected by electrical or magnetic field