NEW
Font size
Worksheetschapter 1 quiz 1
Total questions: 10
Worksheet time: 13mins
All matter is composed of four components (water, air, dust, and fire) with different ratios. That idea belongs to....
Aristotle
Bohr
Rutherford
Dalton
The apparatus which is illustrated in the opposite figure does not produce cathode rays, what is the modification which should be considered to obtain the rays ? .........
altering the connection of the electrodes of the source of electricity.
heating the anode instead of the cathode.
using an alternating current source instead of direct current source .
discharging the air from the tube.
All of the following are among the properties of the cathode rays, except ........ ..
stream of electrons.
move at the speed of light.
charged particles.
deflect with the effect of a magnetic field.
Rutherford's model of atom .... ..
assumed that the atom is solid.
assumed that the positively charged nucleus rotate inside the atom.
assumed that the electrons rotate around the nucleus in any location in the atom .
the first discovery of the nucleus
regarding to the figure, after the production of the cathode ray, which of the two electrodes A or B is hotter
A
B
both are hot
The opposite figure represents α-particles (A, B, C) which of these particles hit the same places in which they appeared before placing the gold foil
A
B
C
The reach of the cathode ray at point B, indicates that the cathode ray
has negative charge
has particle nature
moves in straight lines
affected by magnet
what would happened if all maters are made of Air, Fire dust and water
we are able to convert from one element to another
the environment is preserved
the modern science will confirm the formation of new material from changing the ratios of those four elements
Each of the following is among Thomson's theory postulates, except .....
the protons and neutrons are uniformly distributed over the entire volume of the atom
the atom is sphere
the atom is electrically neutral
the atom is massive
Each of the following is among Dalton's theory postulates, except ..... ..
atoms of the elements contain protons, neutrons and electrons.
the masses of the atoms of the same element are similar.
The atom is undividable
each element is formed from tiny particles called atoms.
