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questions & answers.
Q1.
Match the following.
| Column A | Column B |
| i. Upthrust | a. Movements of particles |
| ii. Adhesive force | b. Atmospheric pressure |
| iii. Surface tension | c. Buoyancy |
| iv. Liquid pressure | d. Torricellian |
| v. Common water pump | e. Increases with depth |
| vi. Simple barometer | f. Concave meniscus |
| vii. Convection | g. Cohesive force |
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Answer:
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- (c) buoyancy
- (f) concave meniscus
- (g) cohesive force
- (e) increases with depth
- (d) Torricellian
- (b) atmospheric pressure
- (a) movement of particles
Q2.
State whether the statements are true or false and correct the false statements.
- With increase in the depth of liquid, the pressure exerted by it increase.
- The atmospheric pressure remains uniform all through the 300 km span.
- Upthrust is the other name of buoyancy.
- For deep-sea diving any kind of swimming outfit may be worn.
- Liquids may flow from higher level to lower level or vice versa.
- The pressure of a liquid independent of its density.
- Soap solution has no effect on the surface tension of water.
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answer not shownQ3.
Correlate the following.
Cohesion : Convex meniscus :: ________ : Concave meniscus
Simple barometer : Torricellian vacuum :: __________ : Corrugated lid
Solids : Vibrational energy :: Liquids : ____________
Kinetic theory : Properties of matter :: __________ : Water pump
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Answer:
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- Adhesion
- Aneroid barometer
- Translational energy
- Atmospheric pressure
Q4.
Why does mercury not stick to the capillary tube of a thermometer?
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answer not shownQ5.
Why are gases are highly compressible?
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Answer:
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Gases are highly compressible as there is a lot of space between the molecules of gas as there is low intermolecular forces of attraction.































































































