CBSE Class 9 - Science - FORCE AND LAWS OF MOTION - Very Short Answer Questions You must Know (#cbseNotes)

FORCE AND LAWS OF MOTION

Class 9 - Physics

Very Short Answer Questions that you must know.


Q1: Give an example that force can make a stationary body move.

Answer: A football can be set to move by kicking it, i.e. by applying a force.



Q2: Name the scientist who experimented with moving balls on a ramp and proved that objects move with constant speed and when no force acts on them.

Answer: Galileo



Q3: Force can change the shape and size of an object. Give an example.

Answer: By hammering, a block of metal can be turned into a thin sheet. By hammering, a stone can be broken into pieces.



Q4: Why does a bicycle slow down when the cyclist stop pedalling? 

Answer: This is because of the frictional forces acting opposite to the direction of motion.



Q5: What are balanced forces?

Answer: If the resultant of applied forces is equal to zero, it is called balanced forces.

CBSE Class 9/10/NTSE/CTET - Important Rivers Of India (#cbseNotes)

Important Rivers Of India

CBSE Class 9 - Geography Notes

1. Ganga
States covered: Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, West Bengal
Length: 2,525 K.M.
Origin at: Gangotri
Ends at: Bay of Bengal


2. Yamuna
States covered: Uttarakhand,Himachal Pradesh,Uttar Pradesh, Haryana, Delhi
Length: 1,376 K.M.
Origin at: Garhwal in Yamunotri
Ends at: Bay of Bengal


3. Brahmaputra
States covered: Assam, Arunachal,Tibet
Length: 2,900 K.M.
Origin at: Lake Manasarovar
Ends at: Bay of Bengal

CBSE Class 9 - Science - Why Do We Fall iLL? - Infographic on Health (#cbseNotes)

Infographic on Health

Class 9 - Science 

Why Do We Fall iLL? 

See below the info graphic.

Learn English Vocabulary From News Papers - August 3 2017 (Day 4)

Learn English Vocabulary From News Papers - August 3 2017

The Indian Express

Inflation

Inflation fall, slowdown spur RBI to cut rate to 6-year low

meaning: a continuous increase in prices (मुद्रास्फीति,  महँगाई)

Examples:
1. The government's overriding concern is to reduce inflation.
2. Economists measure inflation regularly to know an economy's state.

Parenting Tip - Faith (#parenting)

Parenting Tip - Faith

CBSE Class 5/6/7/8 - English Grammar - Reading Comprehension (Set-9) (#cbseNotes)

 Reading Comprehension 

(Set-9)

Thomas Edison

Question: Read the following passage carefully and answer the questions followed by the passage.

One of the greatest inventors of all times, Thomas Alva Edison was born in 1847 in a small town in Ohio, USA. His teachers thought he was a slow learner, so his mother taught him herself, inspiring his interest in Science. In 1869, after moving to New York, he improved a machine called the "ticker". It was used for relaying information about the stock market. Edison invented many things that changed the world.

Learn English Vocabulary From News Papers - August 2 2017 (Day 3)

Learn English Vocabulary From News Papers - August 2 2017

 Day 3

The Economic Times

Narrative

JDU Attempts to Thwart RJD Narrative

meaning: a story or account or a description of a series of events (वर्णन, अफ़साना)

Examples:

1. Did opposition parties play a crucial role in creating a false narrative about JDU and RJD dispute?

2. She is writing a detailed narrative about her experience as photo journalist.