Physics - Laws of Motion
Test- class 9th
A.
One mark
questions
1. State newtons
first law of motion
2. Define
Inertia?
3. Name two
kinds of inertia?
4. Define momentum
and give its S.I units
5. What is S.I
and C.G.S units of force?
6. Write
numerical value of gravitational constant G and its S.I units?
B.
3 Marks
question
1. State newtons third law of motion and give
two examples?
2. Calculate
the magnitude of the force which when applied on a body of mass 0.5 kg produces
an acceleration of 5 m sec-2
3. A force of
10 N acts on a body of mass 2kg for 3 s, initially at rest, Calculate: 1) the
velocity acquired by the body 2) change in momentum of the body?
4. A body of
mass 500 g is resting on a frictionless table. Calculate the acceleration of
the body when it is acted upon by a force of 0.01N
5. Give 2
difference between mass and weight?
6. How are g
and G related?
Metals and
NonMetals
Class-8
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(Q.1) Give
one example of each: metals and non-metals. ( 1 Marks )
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(Q.2) Name
the metal, which is the best conductor of heat and electricity.
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(Q.3) Name
the property by which metals can be drawn into thin wires.
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(Q.4) Name
the gas produced, when metals reacts with acids.
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(Q.5) Which
metal is stored in kerosene?
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(Q.6) Name
the property of the metal by which it can be drawn into thin sheets.
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(Q.7) Name
the gas that burns with a POP sound.
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(Q8) Which
among the following is a non-metal:
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(a) Copper
(b) Zinc
(c) Iron
(d) Chlorine
(b) Zinc
(c) Iron
(d) Chlorine
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(Q9) Which
among the following is a metal?
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(a) Sodium
(b) Oxygen
(c) Flourine
(d) Phosphorus
(b) Oxygen
(c) Flourine
(d) Phosphorus
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(Q.10) Which
of the following is the best conductor of electricity?
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(a) Silver
(b) Iron
(c) Aluminum
(d) Copper
(b) Iron
(c) Aluminum
(d) Copper
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(Q.11) Which
of the following is the good conductor of heat and electricity?
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(a) A
metal
(b) A non-metal
(c) A metalloid
(d) A gas
(b) A non-metal
(c) A metalloid
(d) A gas
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(Q.12) Which
metal can be easily cut with a knife?
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(a) Iron
(b) Aluminum
(c) Sodium
(d) Zinc
(b) Aluminum
(c) Sodium
(d) Zinc
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(Q.13) Which
is the lightest metal?
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(a) Hydrogen
(b) Lithium
(c) Sodium
(d) Aluminium
(b) Lithium
(c) Sodium
(d) Aluminium
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(Q.14) Write
two important properties of metals.
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( 2
Marks )
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(Q.15) What
will happen when ash of magnesium is dissolved in water? Is the solution
acidic or basic? What effect does litmus show in case of oxides of metals?
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( 5
Marks )
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(Q.16) Explain the following terms. (i)
Malleability (ii) Ductility (iii) Sonorous (iv) Lustrous (v) Metalloids.
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( 5
Marks )
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Mathematics
Class VIII
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(Q.1) The
area of four walls of a room whose length is 12 m, width is 8 m and height is
10 m is
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( 1 mark
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(a) 100
m2.
(b) 200 m2.
(c) 400 m2.
(d) 600 m2.
(b) 200 m2.
(c) 400 m2.
(d) 600 m2.
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(Q.2) The
volume of a cuboid is 200 cm3 and base area is 25 cm2
then height of the cuboid is
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( 1 mark
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(a) 4cm.
(b) 8 cm.
(c) 10 cm .
(d) 12cm
(b) 8 cm.
(c) 10 cm .
(d) 12cm
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(Q.3) Area
of a triangle whose base is 14 cm and corresponding altitude is 7 cm, is
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( 1 mark
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(a) 49
cm2.
(b) 70 cm2.
(c) 98 cm2.
(d) 196 cm2.
(b) 70 cm2.
(c) 98 cm2.
(d) 196 cm2.
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(Q4) Area
of a rhombus is 240 cm2 and one of the diagonal is 30 cm then the
other diagonal is
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( 1 mark
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(a) 30
cm.
(b) 24 cm.
(c) 20cm.
(d) 16cm.
(b) 24 cm.
(c) 20cm.
(d) 16cm.
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(Q.5) If
each edge of cube is doubled then its surface area will increase by
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( 1 mark
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(a) 8times.
(b) 4times.
(c) 2 times.
(d) 1 times .
(b) 4times.
(c) 2 times.
(d) 1 times .
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(Q.
6) A close cylindrical tank is of
radius 7 cm and height 3 cm is made from a sheet of metal. Area of the
Sheetrequired for cylindrical tank is
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( 1 mark
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(a) 440
cm2. (b) 400 cm2. (c) 330 cm2. (d) 300 cm2.
(Q.7) How many bricks will be required for a wall
which is 8 m long, 6m high and 22.5 cm thick, if each brick measures 
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