www.pdfquestion.in

Organisation : Chinmaya Vidyalaya
Exam : Science Talent Search Examination
Document Type : Sample Question Paper
Category or Subject : Class – IX

Website : http://cvtarapur.in/
Download Sample Question Paper : https://www.pdfquestion.in/uploads/9495-science.pdf

Chinmaya Vidyalaya Talent Search Exam Question Paper

Questions : 100
Time Allowed : 120 Minutes
Do not open this question paper until the signal is given.
Please check the CLASS printed on the cover page and the inside is same when you open the booklet.

Related / Similar Question Paper :
UCHS Talent Search Exam Question Paper

General Instructions

1) All questions are compulsory and carry equal marks.
2) There is no negative marking.
3) There is only one correct answer hence write one choice only.
4) Please avoid cutting/overwriting etc.
5) Return the answer sheet to the invigilator at the end of the examination.
6) The question paper can be retained by the student.

Physics Question

1) The distance between the crest and the next trough in a periodic wave is
a] y
b] y / 2
c] y / 4
d] 2 y

2) A longitudinal wave travels from east to west in air. In which direction do the particles of air move?
a] east to west
b] west to east
c] north to south
d] south to north

3) The velocity of sound in vacuum is
a] 332ms -1
b] 330 ms -1
c] 288 ms -1
d] 0 ms -1

4) Resonance is a special case of
a] forced vibrations
b] natural vibrations
c] damped vibrations
d] none of these

5) Waves used in sonography are
a] infrared waves
b] microwaves
c] sound waves
d] ultrasonic waves

6) Flash and thunder are produced simultaneously. But the thunder is heard a few seconds after the flash is seen. This is because
a] speed of sound is greater than speed of light
b] speed of sound is equal to the speed of light
c] speed of light is very much greater than the speed of sound.
d] None of these

7) A simple pendulum is transferred from the earth to the moon. Will it go faster or slower?
a] slow down
b] becomes faster
c] remains same
d] none of these

8) When ice melts, its temperature
a] remains constant
b] decreases
c] increases
d] changes

9) The maximum temperature recorded in Delhi on hot summer day is 480C. Find its value in Fahrenheit?
a] 153 0 F
b] 102 0 F
c] 1000F
d] 113 0 F

10) Mercury is used as a thermometric substance because
a] it has uniform expansiveness
b] it has high boiling point
c] it has a fairly low freezing point
d] all of the above

11) Expansion of a rod depends on
a] the original length of the rod
b] the rise of temperature
c] the material of the temperature
d] all of the above

12) A metal disc has a hole in it at its centre. If the disc is heated, the hole will
a] increase in size
b] decrease in size
c] neither increase nor decrease
d] none

13) For accurate scientific work, temperatures are often measured by
a] alcohol thermometers
b] mercury thermometers
c] platinum resistance thermometers
d] thermoelectric thermometers

14) What are the three modes of transmission of heat?
a] conduction, convection and radiation
b] conduction, sublimation and radiation
c] sublimation, convection and radiation
d]conduction, convection and sublimation

15) In winter, a metal chair feels cooler to touch than a wooden chair. Why?
a] metal is a good conductor
b] metal is a bad conductor
c] wood is a good conductor
d] none of the above

16) In hot climatic conditions, buildings are painted white because
a] white paint is cheaper
b] it does not fade of
c] it does not crack with the change of temperature
d] white coating is bad conductor of heat and reflects heat rays falling on it, thus keeping the house cool.

17) When we are sweating, we feel comfortable under a fan because
a] the air circulated by the fan is cool
b] the air takes away the heat from the body
c] the air circulated by the fan quickens the evaporation of sweat
d] all of the above

18) The door of a fridge, which is working is left open
a] the temperature of the room will fall
b] the temperature of the room will rise
c] the room temperature will have been maintained within the fridge
d] none of these

19) A 1 kilowatt motor pumps out water from a well 10 meters deep. Calculate the quantity of water pumped out per second.
a] 10.204g
b] 15.302g
c] 11.201g
d] 16.204g

20) When a stone tied to a string is whirled in a circle the work done on it by the string is
a] positive
b] negative
c] zero
d] undefined