Q 1. Fill in the blanks: 32
1. ----------------------
is used to explain the three states of matter.
2. Gases
are lighter than -------------------.
3. Plasma
also exist in -------------- and ----------- when they glow.
4. Plasma
is highly ---------- state, it allows electric current to pass through it.
5. --------------
of a substance is defined as its mass per unit volume.
6. MASS
= Density * -----------.
7. 1
meter cube = ---------- litres.
8. 1
litre = ----------------- m3
9. 1000
---- = 1 gcm-3
10.
We can calculate density if we know the
----- and ----------.
11.
Pressure is a ------------------ quantity.
12.
If a wooden block measuring 40 cm, 10 cm, 5
cm has a mass of 850 g. Find density of wood?
13.
Air pressure inside balloon is equal to the
-------------- pressure.
14.
At sea-level atmospheric pressure is about
---------- pa or --------------- Nm -2.
15.
A simple barometer is ------------- barometer.
16.
It is common to express atmospheric
pressure in terms of the ----------- of Mercury.
17.
The head of a pin is a square of side 10
mm. The pressure on it due to a force of 20 N is ----------.
18.
Mercury is --------------- times denser
than water.
19.
Atmospheric pressure is -------- on
mountains.
20.
-------------- Applied at any point of a
liquid enclosed in a container, is --------------- without loss to all other
---- of liquid.
21.
Liquid pressure at depth h = P = ---- ---- h
22.
P = F/?
23.
The
----------------- system of vehicles also work on Pascal’s law.
24.
Liquids transmit pressure in all
directions, this is called -------------------.
25.
When a body is immersed wholly or partially
in liquid, it loses its -------------- equal to the ------- of liquid
displaced. This is known as ------------ Princile.
26.
The ratio of change of ------------------
to the original ------------ is called tensile ----------.
27.
The ratio of stress to ------------
--------------- is called ---------------- modulus.
28.
Young’s modulus = Stress / ?
29.
SI Unit of Young’s module is
-------------------- (---------).
30.
Strain in body is --------- stress in body
31.
------------------------- is applicable to
all kinds of deformation and all types of mater.
32.
If a wooden block measuring 40 cm, 10 cm, 5
cm has a mass of 850 g. Find density of wood?
Q 2. Write short answers: 7
- Features of Kinetic Molecular model
- Why do gases put pressure on container?
- How we get plasma- state of matter?
- What is pressure, its equation and Unit?
- Explain pressure in liquids with cylinder example.
- Write three uses of Pascal Law around you?
- Explain Elasticity?
Q 3. Guess who am I? 8
- I’ve fixed shape & volume and vibrate around mean position
2. Molecules can slide over one another.
-------------------------------------------------
3. My molecules move with high velocity
-----------------------------------------------
4. Gas occur in ionic shape
5. I’m a cover of air on earth
6. I can determine the change in weather?
7. Weight must be equal or less than me
to object to float?
8. I’m
not suitable to be used in barometer and why?
-------------------------------------------------------------------------------
-