Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest
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Transcript of Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest
![Page 1: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/1.jpg)
The Physics QuizPreliminary Round
AFBBS Physics Fest 2013
![Page 2: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/2.jpg)
Rules
• Each question is worth a single point, unless stated otherwise
• Asterisk (*) marked questions will be used to resolve any ties
• Maximum points = 25
![Page 3: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/3.jpg)
1
• "Rotation of the earth supports the formation of tides in the ocean"
• Fact or fiction?
![Page 4: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/4.jpg)
*2
*The ISRO spacecraft Aditya-1 will study ______
![Page 5: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/5.jpg)
3
• If a stone and a feather are dropped from a small height on the moon, what will hit the surface first?
![Page 6: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/6.jpg)
4
• Name the two fundamental forces that have been unified.
![Page 7: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/7.jpg)
5
• Name any one of the forces in action during churning of milk.
![Page 8: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/8.jpg)
6
• Lorenzo Romano **ed** Carlo __________ di Quareqa edi Carreto (1776-1856) advanced the study of thermodynamics by suggesting that equal volumes of gases have equal number of molecules at the same temperature and pressure. He also suggested that oxygen and hydrogen existed in the diatomic state, a view which was rejected by Dalton. Fill in the blank.
![Page 9: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/9.jpg)
*7 *Who is proving what?
![Page 10: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/10.jpg)
8
• If time period of oscillation of a wooden bob of 3.14 kg attached to a massless string is 5 seconds then what is the time period of oscillation after adding an iron bob weighing 2π kg to the same string?
![Page 11: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/11.jpg)
9
• The element that is used in catalytic convertors, storage and production of pure hydrogen and manufacturing of capacitors also powers a fictional reactor(shown in the picture). Which element?
![Page 12: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/12.jpg)
10
• A boy is sitting in a car with a helium balloon with him. Suddenly a car accelerates in the forward direction. In which direction will the balloon move?
![Page 13: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/13.jpg)
11
• For escaping heat from sunshine, what colour of the umbrella is the best? Tell colours for both inside and outside.
(2 points)
![Page 14: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/14.jpg)
12
• Is the speed of sound maximum in helium gas, liquid mercury, or solid carbon?
![Page 15: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/15.jpg)
*13
• *What are the units of measurement of vacuum?
![Page 16: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/16.jpg)
14
• The design of this government engineering college in Kerala has made it famous as its front resembles a famous celestial object. What object?
![Page 17: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/17.jpg)
15
• Antiparticle of electron is _____________.
![Page 18: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/18.jpg)
16
• Identify:
![Page 19: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/19.jpg)
17
• Who was the first person to measure the gravitational constant (G)?
![Page 20: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/20.jpg)
*18
• *Write down your exact weight in 3 significant figures.
![Page 21: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/21.jpg)
19
• Is dp/dt = ma universally true? If not, write for what or when it is false?
(2 points)
![Page 22: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/22.jpg)
20
• Identify the very popular scientist
![Page 23: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/23.jpg)
21
• *If the motion of constituents of the outer core of earth- iron, nickel were to stop, what would be the effect on the earth's magnetic field?
![Page 24: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/24.jpg)
*22
*Neutron stars result from massive stars of mass greater than 4 to 8 times that of our Sun. After these stars have finished burning their nuclear fuel, they undergo an explosion which blows off their outer layers and the central region of the star collapses under gravity so much that protons and electrons combine to form neutrons. They emit radiation from only some circular regions around their poles and hence on rotation they seem like sending pulses of light. What are rotating neutron
stars known as?
![Page 25: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/25.jpg)
23
• Gadolinium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Seaborgium Bohrium Meitnerium Roentgenium Copernicum Flerovium What is missing?
![Page 26: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/26.jpg)
Answers
![Page 27: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/27.jpg)
![Page 28: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/28.jpg)
1
• "Rotation of the earth supports the formation of tides in the ocean"
• Fact or fiction?
![Page 29: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/29.jpg)
1
• Fact
![Page 30: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/30.jpg)
*2
*The ISRO spacecraft Aditya-1 will study ______
![Page 31: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/31.jpg)
2
• Sun
![Page 32: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/32.jpg)
3
• If a stone and a feather are dropped from a small height on the moon, what will hit the surface first?
![Page 33: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/33.jpg)
3
• Both stone and feather will hit the surface at the same time
![Page 34: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/34.jpg)
4
• Name the two fundamental forces that have been unified.
![Page 35: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/35.jpg)
4
• Electromagnetic force and weak nuclear force
![Page 36: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/36.jpg)
5
• Name any one of the forces in action during churning of milk.
![Page 37: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/37.jpg)
5
• Viscous force, centrifugal force
![Page 38: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/38.jpg)
6
• Lorenzo Romano **ed** Carlo __________ di Quareqa edi Carreto (1776-1856) advanced the study of thermodynamics by suggesting that equal volumes of gases have equal number of molecules at the same temperature and pressure. He also suggested that oxygen and hydrogen existed in the diatomic state, a view which was rejected by Dalton. Fill in the blank.
![Page 39: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/39.jpg)
6
• Lorenzo Romano Amedeo Carlo Avogadro di Quareqa edi Carreto
![Page 40: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/40.jpg)
*7 *Who is proving what?
![Page 41: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/41.jpg)
7
• Benjamin Franklin proving lightning is flow of electric charge
![Page 42: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/42.jpg)
8
• If time period of oscillation of a wooden bob of 3.14 kg attached to a massless string is 5 seconds then what is the time period of oscillation after adding an iron bob weighing 2π kg to the same string?
![Page 43: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/43.jpg)
8
• 5 seconds, T remains same
![Page 44: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/44.jpg)
9
• The element that is used in catalytic convertors, storage and production of pure hydrogen and manufacturing of capacitors also powers a fictional reactor(shown in the picture). Which element?
![Page 45: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/45.jpg)
9
• Palladium
![Page 46: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/46.jpg)
10
• A boy is sitting in a car with a helium balloon with him. Suddenly a car accelerates in the forward direction. In which direction will the balloon move?
![Page 47: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/47.jpg)
10
• Forward
![Page 48: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/48.jpg)
11
• For escaping heat from sunshine, what colour of the umbrella is the best? Tell colours for both inside and outside.
(2 points)
![Page 49: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/49.jpg)
11
• Inside: Black
• Outside: White
![Page 50: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/50.jpg)
12
• Is the speed of sound maximum in helium gas, liquid mercury, or solid carbon?
![Page 51: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/51.jpg)
12
• Solid carbon
![Page 52: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/52.jpg)
*13
• *What are the units of measurement of vacuum?
![Page 53: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/53.jpg)
13
• Pascal, N/m2 or any other unit of pressure
![Page 54: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/54.jpg)
14
• The design of this government engineering college in Kerala has made it famous as its front resembles a famous celestial object. What object?
![Page 55: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/55.jpg)
14
• Aryabhatta (satellite)
![Page 56: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/56.jpg)
15
• Antiparticle of electron is _____________.
![Page 57: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/57.jpg)
15
• Positron
![Page 58: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/58.jpg)
16
• Identify:
![Page 59: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/59.jpg)
16
• Sputnik
![Page 60: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/60.jpg)
17
• Who was the first person to measure the gravitational constant (G)?
![Page 61: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/61.jpg)
17
• Henry Cavendish
![Page 62: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/62.jpg)
*18
• *Write down your exact weight in 3 significant figures.
![Page 63: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/63.jpg)
18
• Weight ϵ [300 N, 120 X 101 N]
OR
[300 X 105 dyn, 120 X 106 dyn]
OR
in any other unit of measurement of force, with accepted masses in the range 30kg to 120kg (assuming all participants satisfy this
range)
![Page 64: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/64.jpg)
19
• Is dp/dt = ma universally true? If not, write for what or when it is false?
(2 points)
![Page 65: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/65.jpg)
19
• False. Particles moving close to speed of light do not have a constant mass
![Page 66: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/66.jpg)
20
• Identify the very popular scientist
![Page 67: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/67.jpg)
20Richard Feynman
![Page 68: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/68.jpg)
21
• *If the motion of constituents of the outer core of earth- iron, nickel were to stop, what would be the effect on the earth's magnetic field?
![Page 69: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/69.jpg)
21
• Magnetic field would diminish
![Page 70: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/70.jpg)
*22
*Neutron stars result from massive stars of mass greater than 4 to 8 times that of our Sun. After these stars have finished burning their nuclear fuel, they undergo an explosion which blows off their outer layers and the central region of the star collapses under gravity so much that protons and electrons combine to form neutrons. They emit radiation from only some circular regions around their poles and hence on rotation they seem like sending pulses of light. What are rotating neutron
stars known as?
![Page 71: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/71.jpg)
22
• Pulsar
![Page 72: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/72.jpg)
23
• Gadolinium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Seaborgium Bohrium Meitnerium Roentgenium Copernicum Flerovium What is missing?
![Page 73: Physics Quiz Prelims 2013 - Air Force Bal Bharati School Physics Fest](https://reader031.fdocuments.us/reader031/viewer/2022020101/55adbc5e1a28ab80798b45d5/html5/thumbnails/73.jpg)
24
• Curium
• <Exhaustive list of elements named after people>