Tuesday 7 August 2012

Colours in Idioms

A red carpet welcome

Colours in Idioms


Colours play an important role in our lives. Colours in idioms convey different meanings. Here is a list of few idioms on colours

➊. Black Market: an underground market where things are bought or sold illegally.

e.g. You can get forty two inch LCD television much cheaper at the black market but there is no guarantee about its parts.

➋. Out of the blue: an unexpected event.

e.g. Shyam has not been working since January. Last week a job offer came out out of the blue.

Sunday 5 August 2012

CBSE Class 9 - Ch9 - Force and Laws of Motion

Newtons' Cradle
Find out which Law is demonstrated here?
credits:Wikipedia
Force and Laws of Motion
NCERT Solution and Q & A

Q1: Define inertia.

Answer: Inertia is the resistance of a body to change in its state of rest or motion. It is an inherent property of the body. The property of inertia is due to the mass of the body. Greater the mass, higher will be the inertia.

There are three kinds of intertia:
  1. Intertia of rest
  2. Interia of motion
  3. Interia of direction.

Saturday 4 August 2012

CBSE Class 10 - Science - CH3 - Metals and Non-Metals (MCQs)

Metals and Non-Metals

MCQs
Check in Periodic Table
How many metals, non-metals and metalloids?





1. Which of the following is the best electrical conductor?
(a) Gold
(b) Silver
(c) Copper
(d) Aluminium

Friday 3 August 2012

CBSE Class 9 and Class 11 to have PSA test from SA-II onwards

CBSE has asked CBSE affiliated schools to conduct a MCQ based exam called Problem Solving Assessment (CBSE-PSA) for class IX and XI from second term (SA-2) w.e.f. from January-Feburary 2013.
Later the test will be conducted for class X also.

Its score will be added in FA-4 which is 10% of total assessments of Class IX and class XI students will get a certificate. 

Thursday 2 August 2012

CBSE Class 7 Science - CH14 - Electric Current and its Effects

Electric Current and its Effects
Why CFL is better than electric bulb?
NCERT Solutions and other Q & A

Q1: Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switch in the ‘OFF’ position, bulb, cell, switch in the ‘ON’ position, and battery.

Answer:


















Wednesday 1 August 2012

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.1)

NCERT Excercise 6.1

Q1: In Fig. 6.13, lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE.