Structure of Matter and Kinetic Theory Generix Content - Structure of Matter and Kinetic Theory
"Structure of Matter and Kinetic Theory" question number distribution across years
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JAMB questions for "Physics :: Structure of Matter and Kinetic Theory"
Q1
I. Mass  II. Density  III. Temperature IV. Nature of substance  Which of the above affect diffusion?
A
I, II III and IV
B
I and II only
C
I, II, and IV only
D
II, III and IV only
E
Q2
The difference observed in solids, liquids and gases may be accounted for by
A
the spacing and forces acting between the molecules
B
their relative masses
C
the different molecules in each of them
D
their melting points
E
Q3
The process whereby the molecules of different substances moved randomly is called
A
surface tension
B
diffusion
C
capillarity
D
osmosis
E
Q4
I. Melting  II. Boiling  III. Refraction  IV. Conduction  Which combination of the above is evident of the molecular nature of matter?
A
I ,II and IV only
B
I, III and IV only
C
I , II and III only
D
II, III and IV only
E
Q5
A body of mass 4kg is acted on by a constant force of 12N  for 3 seconds. The kinetic energy gained by a body at the end of the time is
A
144 J
B
162 J
C
81 J
D
72 J
E
Q6

An electron of charge 1.6 x 10-19 C is accelerated between twio metal plates. If the kinetic energy of the electron is 4.8 x 10-17 J, the potential difference between the plates is

A

300V

B

30V

C

400V

D

40V

E
Q7
A stone of mass 1 kg is dropped from a height of 10m above the ground and falls freely under gravity . Its kinetic energy 5m above the ground is then equal to
A
half its initial potential energy
B
its initial potential energy
C
twice its initial potential energy
D
its kinetic energy on the ground
E
Q8

A lead bullet of mass 0.05 kg is fired with a velocity of 200 ms-1 into a lead block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is

A

50 J

B

100 J

C

150 J

D

200 J

E
Q9
One valid assumption of the kinetic theory of gases is that
A
the molecules of a gas are constantly in a state of motion and the number of collisions remain constant
B
the number of molecules a gas increases with increasing presssure
C
as the temperature increases, the number of collisions made by the gas molecules remain constant
D
the molecules of a gas are all identical and are very smallin size
E
Q10
An object of mass 50 kg is released from a height of 2m. Find the kinetic energy just before it strikes the ground
A
250 J
B
1000 J
C
10 000 J
D
100 000 J
E
Q11
From the kinetic theory of gases, temperature is a
A
form of energy and is proportional to the total kinetic energy of the molecules
B
form of energy and is proportional to the average kinetic of the molecules
C
physical property and is proportional to the total kinetic energy of the molecules
D
physical property and is proportional to the average kinetic energy of the molecules
E
Q12
Which of the following phenomena CANNOT be explained by the molecular theory of matter?
A
Expansion
B
Conduction
C
Convection
D
E
Evaporation
Q13
Which of the following statements describes an atom accurately? I. atoms of all elements are identical II. An atom contains a nucleus and a number of electrons III. Due to the electrons in the atom, an atom is negatively charged IV. Electrons in the atom move in circular orbits round the nucleus
A
I and II
B
II and III
C
III and IV
D
II and IV
E
I, II and III
Q14
Which of the following statements is CORRECT?  I. The mass number is equal to total number of protons nd electrons in an atom II. The atomic number is equal to the number of protons in an atom III. The number of electrons in an atoms is equal to the total number of protons and neutrons in the nucleus
A
I only
B
II only
C
III only
D
I and II only
E
II and III only
Q15
The mass of a proton is approximately equal to that of
A
an &#945;-particle
B
a &#946;-particle
C
a y-ray
D
an electron
E
a neutron
Q16
Which of the following statements are true in the structure of atoms?
A
The atoms of the different elements differ only in the number of protons and electrons
B
The number of protons equals the number of electrons
C
Atoms are constructed according to the plan of our solar system
D
All of the above
E
A and C only
Q17
Which of the followings are true of atoms ?
A
Atoms are indestructible
B
All atoms of a pure substance, or element , are identical
C
Atoms of different substances have different weights
D
All of the above
E
A and B only
Q18
It is known that a neutron exists in a light atomic nucleus. Which of the following also exists in the nucleus?
A
An electron
B
A &#946;-particle
C
An &#945;-particle
D
A proton
E
An atom
Q19
The net charge on the atom is zero because
A
the electrons and the protons that are charged are in the nucleus
B
the total charge on the electrons is equal to the total charge on the neutrone
C
the neutrons form a shield around the charged protons
D
the number of electons in an atom is half the number of protons
E
A and B above