Question 1 :
An earthquake measures 3 on Richter scale. Would it be recorded by a seismograph?
Question 2 :
State TRUE or FALSE : A charged glass rod attracts a charged plastic straw.
Question 3 :
State in India where earthquakes are more likely to strike is:
Question 5 :
The radius of Jupiter is 11 times the radius of the Earth. How many Earths can Jupiter accommodate?
Question 7 :
Which of the following is NOT a planet of the Sun ?
Question 8 :
The radius of Jupiter is 11 times the radius of the Earth. Calculate the ratio of the volumes of Jupiter and the Earth.
Question 9 :
After crescent moon, the moon grows larger every day. On the ______ day once again we get a full view of the moon.
Question 12 :
There is a large gap in between the orbits of Mars and Jupiter.This gap is occupied by a large number of small objects that revolve around the Sun. These are called_______
Question 14 :
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Look at the above image. Can the image of the child in it be obtained on a screen?
Question 15 :
Fill in the blanks: The size of the pupil becomes__________ when you see in dim light.
Question 16 :
The most popular resource for visually challenged persons is Braille, it was developed by?
Question 18 :
Fill in the blanks: A person 1 m in front of a plane mirror seems to be _____ away from his image?
Question 19 :
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Refer to the above figure. Boojho stands at A just on the side of a plane mirror as shown in figure. Can he see the image of objects situated at P, Q and R?
Question 20 :
Mention whether regular or diffused reflection will take place when a beam of light strikes on White Chalk powder that is used in school?
Question 21 :
If the angle of incidence ray is given $30^{\circ}$, then what is the angle of reflection?
Question 22 :
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In the above figure of the human eye, the cornea is represented by the letter
Question 23 :
The distance between the object and its image formed by a plane mirror appears to be 24 cm. What is the distance between the mirror and the object?
Question 24 :
What precautions should be taken if one is outside in a forest where no shelter is available and you are in an open field during a thunderstorm?
Question 26 :
Which process is called when negative and positive charges meet, producing streaks of bright light and sound in clouds?
Question 27 :
Two charged objects are brought close to each other. Choose the most appropriate statement from the following options:
Question 28 :
The boundaries of the plates are the weak zones where earthquakes are more likely to occur. The weak zones are also known as
Question 29 :
What precautions would you take if lightning occurs while you are outside the house?