Chitramsh Academy
TERM-2020. 21)
Sweet Since
Nime
ਵਾਲਾ ladht
Part 2
Q. Choose the correct option.
1) The standard unit of length in the Sl system is
a) cubit
b) centimetre
ch metre
di Pandan
2) Lights
a) Visible and also make object on which it falls visible.
b) Invisible but make objects on which als visible.
c) Invisible but become visible when it falls on an object.
d) Sometimes visible and somethings brevisible but it always makes objects on
which it falls visible.
3) You are a scientist who has to make a satellite to send into orbit in otet pace. With
of these will you use as a source of power in the satellite?
a) Dry cells
b) solar cells
C) rechargeable cells of the type, used in cars d) rechargeable button cells
4) A freely suspended magnet comes to rest in the
a) north-south direction
b) north-east direction
c) north-west direction
d) east-west direction
Q. 2. Write Tfor the true statement and F for the false one. Correct the false statements :12]
1. Plants respiro only at night.
II
. Change of temperature
can be used to change the state of water.
II. We can make a magnet with only one pole.
Iv. Current can only ſlow in a closed circuit.
a. 3. Fill in the blanks :
1. An object is said to be in motion if its _(colour/position) changes with time
2. A smooth surface is called a Tregular/ Irregular) surface.
3.
(Computer hard disks/ Playing cards) use magnets
4. Wires are usually made of
lcopper/ carbon)
5. Air contains about 0.03%
(carbon-di-oxide/ nitrogen)
6. Blue bins are for
(recyclable/ biodegradable) wastes.
Q. 4. Write two examples of :
1. Rotational motion
II. Non- magnetic materials
ill. Non- luminous objects
iv. Things that can be recycled
V. Things that can be reused
Q. 5. Write one word for the following:
1. A fixed quantity with respect to which a physical quantity is measured
2. This type of magnet loses its magnetic property very easily
3) Left-right reversal
4) The thin wire in an elatric bulb that glows and given out light
5) The process by which gases are exchanged in the human body
[6]
(5
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Answers
Answer:
fhrhrgyluykjfmggmddd
Explanation:
Happy diwali
Explanation:
German: [ˈalbɛʁt ˈʔaɪnʃtaɪn] (About this soundlisten); 14 March 1879 – 18 April 1955) was a German-born theoretical physicist[5] who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).[3][6] His work is also known for its influence on the philosophy of science.[7][8] He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed "the world's most famous equation".[9] He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect",[10] a pivotal step in the development of quantum theory.
Albert Einstein
Einstein 1921 by F Schmutzer - restoration.jpg
Einstein in 1921
Born
14 March 1879
Ulm, Kingdom of Württemberg, German Empire
Died
18 April 1955 (aged 76)
Princeton, New Jersey, United States
Citizenship
Kingdom of Württemberg, part of the German Empire (1879–1896)[note 1]
Stateless (1896–1901)
Switzerland (1901–1955)
Austria, part of the Austro-Hungarian Empire (1911–1912)
Kingdom of Prussia, part of the German Empire (1914–1918)[note 1]
Free State of Prussia (Germany, 1918–1933)
United States (1940–1955)
Education
Federal Polytechnic School in Zurich (Federal teaching diploma, 1900)
University of Zurich (PhD, 1905)
Known for
General relativity
Special relativity
Photoelectric effect
E=mc2 (Mass–energy equivalence)
E=hf (Planck–Einstein relation)
Theory of Brownian motion
Einstein field equations
Bose–Einstein statistics
Bose–Einstein condensate
Gravitational wave
Cosmological constant
Unified field theory
EPR paradox
Ensemble interpretation
List of other concepts
Spouse(s)
Mileva Marić
(m. 1903; div. 1919)
Elsa Löwenthal
(m. 1919; died[1][2] 1936)
Children
"Lieserl" Einstein
Hans Albert Einstein
Eduard "Tete" Einstein
Awards
Barnard Medal (1920)
Nobel Prize in Physics (1921)
Matteucci Medal (1921)
ForMemRS (1921)[3]
Copley Medal (1925)[3]
Gold Medal of the Royal Astronomical Society (1926)
Max Planck Medal (1929)
Member of the National Academy of Sciences (1942)
Time Person of the Century (1999)