A solution is a homogeneous mixture of two or more components. Homogeneous means the composition and properties are uniform throughout the entire mixture.
Solvent: The component present in the largest quantity. It determines the physical state of the solution.
Solute: The component(s) present in smaller quantities, dissolved in the solvent.
Binary Solution: A solution containing exactly two components (one solute and one solvent).
A Simple Retelling for Students
The Vijayanagara Empire was one of the greatest kingdoms in India. Its famous king, Krishnadeva Raya, was brave, intelligent, and loved art and literature. His rule is called the Golden Age of the empire because learning, poetry, and culture grew greatly during that time.
The king’s court had eight famous poets called the Ashtadiggajas. Among them, Tenali Rama was the most popular because of his cleverness, humour, and quick thinking. He often solved difficult problems in smart ways.
Based on the
Creative Chitti
section on page 6 of the textbook, Chitti is a calculator with buttons for
large place values (+1,
+10,
+100,
+1,000,
+10,000,
+1,00,000, and
+10,00,000). It loves to find creative, alternative ways to break down numbers
instead of just using standard place values.
Here are solutions for the "Figure it Out" exercises by writing expressions for at least two different creative ways to obtain each number:
This question paper contains 4 Sections — A, B, C and D.
All questions are compulsory.
Use of calculator is allowed where necessary.
The paper is designed according to the NEP competency-based pattern.
Questions test:
Analytical thinking
Logical reasoning
Mathematical modelling
Real-life applications
Interpretation skills
Draw neat graphs wherever required.
Time Allowed: 2 Hours
Maximum Marks: 40
Answer all questions.
This paper contains competency-based, analytical and application-oriented questions.
Diagrams wherever necessary should be neat and labelled.
Assume g = 10 m/s2 unless otherwise stated.
Calculators are not allowed.
A boy pushes a wall with great force for 2 minutes but the wall does not move. Which statement is correct?
A. Work is done because force is applied.
B. No work is done because
displacement is zero.
C. Power is maximum because time is large.
D.
Energy is destroyed.
