Al interval (B) Answer the following questions.
1. What is inertia? Write down the relation between mass and inertia?
It is the
orkoms
motion
The inertia
sto be in
external
led law
2. What is acceleration? What would be the acceleration in a body
moving with uniform velocity and why?
3. State Newton's first law of motion and write down any three
examples to justify it.
4. State Newton's second law of motion and prove F = ma
5. Newton's first law of motion is also called the law of inertia, why?
Clarify your answer.
6. An electric fan continues in its motion even after the switch is put
off, why?
7. Dust particles fall down when a carpet or a piece of cloth is beaten
by a stick, why?
8. While swimming a person pushes water backward, why?
9. A cricket player catches the ball leaning towards to the ground, why?
10. Prove that s = ut +1/2 at-
11. State Newton's third law of motion and write any three
applications of it.
12. Prove that vi= u+ 2as.
Loed on
versely
Jual but

pe = weightxheight = 2000x1000=2,000,000joules

. west

a straight line sloped

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

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-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

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-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water