Pick out words from the text that mean the same as the following words or expressions. (Look in the paragraphs indicated.)
1. took to be true without proof :_____
2. based on reason; sensible; reasonable :___
3. the usual way of doing things :____
4. a strong desire arising from within:____
5. the power to endure, without falling ill:_____
1. took to be true without proof :_____
2. based on reason; sensible; reasonable :___
3. the usual way of doing things :____
4. a strong desire arising from within:____
5. the power to endure, without falling ill:_____
Solution and Explanation
1. took to be true without proof : blessing
2. based on reason; sensible; reasonable : rational
3. the usual way of doing things: custom
4. a strong desire arising from within: urge
5. the power to endure, without falling ill: resistance/endurance
Top Questions on Reach for the top
- Complete the following statements.
1. From her room in Kasturba Hostel, Santosh used to____
2. When she finished college, Santosh had to write a letter of apology to her father because____
3. During the Everest expedition, her seniors in the team admired her____while_____endeared her to fellow climbers.- CBSE Class IX
- English
- Reach for the top
- What incidents during the Everest expedition show Santosh’s concern for her team-mates?
- CBSE Class IX
- English
- Reach for the top
- Can a “simple jab of the knife” kill a tree? Why not?
- CBSE Class IX
- English
- Reach for the top
- What shows her concern for the environment?
- CBSE Class IX
- English
- Reach for the top
- Give an example to show that even as a young girl Santosh was not ready to accept anything unreasonable.
- CBSE Class IX
- English
- Reach for the top
Questions Asked in CBSE Class IX exam
- Explain what the reasons for the following are.
(i) Einstein leaving the school in Munich for good.
(ii) Einstein wanting to study in Switzerland rather than in Munich.
(iii) Einstein seeing in Mileva an ally.
(iv) What do these tell you about Einstein?- CBSE Class IX
- A truly beautiful mind
- (i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)- CBSE Class IX
- The snake and the mirror
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.
- CBSE Class IX
- Angle Subtended by an Arc of a Circle
- Name the two temples the author visited in Kathmandu.
- CBSE Class IX
- Kathmandu
Look up the dictionary entries for the words sympathy, familiarity, comfort, care, and surprise. Use the information given in the dictionary and complete the table.
Noun, Adjective, Adverb, Verb, Meaning:
sympathy
familiarity
comfort
care
surprise- CBSE Class IX
- If I were you
Concepts Used:
Fluid Mechanics
Fluid mechanics is a branch of physics and engineering that deals with the study of fluids, both liquids and gases, and their behavior under various conditions. It involves understanding the principles and equations governing fluid flow, fluid properties, and the interaction between fluids and solid surfaces.
The field of fluid mechanics covers a wide range of topics. Fluid properties include characteristics such as density, viscosity, and compressibility, which influence the behavior of fluids. Understanding these properties is crucial for analyzing fluid flow.
Fluid flow can be categorized as either steady or unsteady, laminar or turbulent. Steady flow refers to flow conditions that do not change with time, while unsteady flow involves time-varying conditions. Laminar flow is characterized by smooth and orderly movement of fluid particles, while turbulent flow is chaotic and characterized by fluctuations and eddies.
Fluid mechanics applies various principles and equations to analyze and predict fluid behavior. The Navier-Stokes equations describe the motion of fluid particles and are fundamental to understanding fluid flow. Other principles, such as Bernoulli's equation, describe the relationship between fluid pressure, velocity, and elevation along a streamline.
Fluid mechanics finds wide application in numerous fields, including civil engineering (hydraulics), aerospace engineering, chemical engineering, and mechanical engineering. It is used to design and analyze systems such as pipelines, pumps, turbines, aircraft wings, and heat exchangers.
By studying fluid mechanics, engineers can optimize the design and operation of fluid systems to improve efficiency, performance, and safety. It allows for the prediction of pressure drops, flow rates, heat transfer rates, and the behavior of fluids in various scenarios.
Overall, fluid mechanics plays a vital role in understanding and harnessing the behavior of fluids in engineering and scientific applications. It enables engineers to design efficient and reliable systems while considering the complex dynamics and interactions of fluids.