Paper Final-1
Sub: Physics Marks: 50 Time: 1 hour 20 min
- 1 Write
whether the statements are TRUE/FASE
a)
Unlike pole repel and like pole attract.
b)
An electric current is a flow of electrons.
c)
The distance between 0 0c and 100 0c is
divided into 50 equal divisions
d)
Ice has higher density than liquid water.
e)
Light cannot travel in straight line.
f)
There are three laws of reflection.
g)
The closer the poles, the lowest the force between them.
h)
Cooling at lowest temperature can be a way of demagnetizing.
i)
Tin is an example of magnetic substances.
j)
Copper is good semiconductor of electrons.
- 2.
Fill
in blanks with suitable words.
a)
1 micro Coulomb = ………….. Coulomb
b)
Atoms become ions if they lose ……………
c)
The magnetic field is strongest where the field line are ……….
together.
d)
Insulators are materials that hardly conduct ………. at all.
e)
Electrons have ………….. charge
f)
The angle of incidence is equal to the angle of ……….
g)
Light can travel through ………..
space
h)
Laser light emit light of a single ………….
i)
Black substance ………….. whole light nearly of its
j)
Water has maximum density at ……… degree centigrade
- 3. Join
the table with left to right.
|
Left |
Right |
|
1. Mercury
freezes |
a) No
charge |
|
2. Speed
of Light |
b) Monochromatic
light |
|
3. Alcomax
is example of |
c) At
-39 0c |
|
4. Neutrons
have |
d) Hard
magnet. |
|
5. People
use in Laser light |
e) 300000
km per second |
- 4.
Answer
the following questions.
a)
What do you mean by (a) responsiveness (b) sensitivity in
liquid-in -glass thermometers?
b)
What is (a) ice point and (b) steam point in Celsius Scale?
c)
Write down the properties of light.
d)
How can you make a steel into magnet and also demagnetize it
again?
e)
Define: a) Hard magnetic materials and (b) soft magnetic
materials
f)
What is ions and Coulomb?
g)
Define: Semi-conductor and conductor.
h)
Write the rules for image size and position at plane mirror.
i)
Draw a figure that having the angle of incidence of 600 with proper leveling
j)
What is induced charge? If you have a rod having negative charge
then how can you induced a globe of charge, explain it with proper figure

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