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Wednesday 1 August 2012
CBSE Class 9 - Science - CH9 - Force and Laws of Motion (worksheet)
Isaac Newton |
Force and Laws of Motion
Worksheet
Fill in the blanks
1. The study of motion of a body under the action of a force is called ______.
2. (Impulse/Force/Pressure) ______ is a push or pull acting upon an object.
3. The natural tendency of objects to resist a change in their state of rest or of uniform motion is called ______.
Tuesday 31 July 2012
CBSE Class 9 - Science - CH6 - Tissues (Worksheet)
Fill in the blanks
1. ___________ is the process by which unspecialised structures become modified and specialised for performing specific functions.
2. Differentiation results in ________ (division/ summation/integration) of labour.
3. The study of the structure of tissues and organs is known as ______ .
4. Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Sunday 29 July 2012
CBSE Class 11: Chemistry - CH1 - Laws of Chemical Combinations #chemistry #eduvictors
Antoine Lavoisier credits:wikipedia |
Laws of Chemical Combinations
Q1: List the laws that are collectively called Laws of Chemical combinations.
Answer:
- Law of Conservation of Mass
- Law of Constant Composition
- Law of Multiple proportions
- Law of reciprocal proportions
- Law of Combining Volumes (Gay Lussac's law of Gaseous Volumes)
- Avogadro Law
CBSE Class 9 - Maths - Ch6 - Lines and Angles (Set-2)
Q1: Prove that two lines which are both parallel to the same line, are parallel to each other.
Answer:
Given: Three lines l, m, n in a plane such that l || m and m || n.
Saturday 28 July 2012
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