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Akanksha Kurial
Subject: Science
, asked on 29/1/18
What will happenif we touch te metal disc of a charged electroscope?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 29/1/18
Four children , who were playing outside, took shelter under different trees on hearing a thunderstrom. Which of these children has the least chanceof getting struck by lightning?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 29/1/18
The aluminium strips(leaves) in an electroscope are replaced by plastic atrips. If a charged body is brought in contact with the metal disc on top, what do we observe?
Answer
2
Owais Nawaz Khan
Subject: Science
, asked on 29/1/18
when you are travelling in a plane, you are in motion or rest ?
Answer
1
Harshwardhan Khare
Subject: Science
, asked on 29/1/18
Why does static charge accumulate on TV or monitor ??
Answer
1
Akanksha Kurial
Subject: Science
, asked on 27/1/18
During the construction of a building, the lightning conductor was left hanging in the air by mistake. Will it be still effective? Give reasons.
Answer
3
Ankita Mukherjee
Subject: Science
, asked on 24/1/18
What preventive measures should be taken to measure the magnitude of an earthquake. Question from Pruquest Science book 8
Answer
2
Lavanya Sharma
Subject: Science
, asked on 23/1/18
Why the earthquake with higher magnitude is more destructive than the one with lesser magnitude❓
Answer
2
Jaya
Subject: Science
, asked on 22/1/18
How come the charge on a body came to be known as electrik
Answer
1
Technical Issues
Subject: Science
, asked on 22/1/18
how does the oxygen in maltose that is bonded with two carbons not satisfy the octet rule
Answer
2
Harshwardhan Khare
Subject: Science
, asked on 21/1/18
Solve
Answer
2
Kavya Pahuja
Subject: Science
, asked on 20/1/18
PLEASE ANSWER QUESTION NUMBER 14,15,16,17,18,19
Q14. The weather department has predicted that a thunderstorm is likely to occur on a certain day. Would you carry an umbrella, if you go out on that day? Why/ Why not ?
Q15. If a building were made of materials that are good conductors, would lightning strike the building?
Would a lightning conductor be still required to be installed? Why / Why not?
Q16. A glass rod can be charged by holding in hand, while an iron rod can be charged only by attaching it to an insulator. Explain.
Q17. If the intensities recorded for two different events of earthquake on the Richter scale are 3 and 7 respectively, how many times more would be the amplitude in the latter case ?
Q18. Open a water tap. Adjust the-flow to a thin stream. Charge a plastic pen refill by rubbing on flannel or wool. Bring it near the water stream. What do you observe ? Why ?
Q19. Two electroscopes X and Y are connected with a copper wire as shown. What will happen next? Explain.
Answer
3
Kavya Pahuja
Subject: Science
, asked on 20/1/18
12. Four children, who were playing outside, took shelter under different trees on hearing a thunderstorm. Which of these children has the least chance of getting struck by lightning?
13. What will happen if we touch the metal disc of a charged electroscope?
Answer
1
Kavya Pahuja
Subject: Science
, asked on 20/1/18
WHEN WE TAKE OFF WOOLEN OR POLYESTER CLOTHES IN THE DARK,ESPECIALLY IN WINTERS, WE CAN SEE SPARKS AND CRACKLING SOUNDS. HOW DOES THIS HAPPEN?
Answer
1
Ankita Mukherjee
Subject: Science
, asked on 18/1/18
What preventive steps should be taken to measure the magnitude of earthquakes?
Answer
1
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Q14. The weather department has predicted that a thunderstorm is likely to occur on a certain day. Would you carry an umbrella, if you go out on that day? Why/ Why not ?
Q15. If a building were made of materials that are good conductors, would lightning strike the building?
Would a lightning conductor be still required to be installed? Why / Why not?
Q16. A glass rod can be charged by holding in hand, while an iron rod can be charged only by attaching it to an insulator. Explain.
Q17. If the intensities recorded for two different events of earthquake on the Richter scale are 3 and 7 respectively, how many times more would be the amplitude in the latter case ?
Q18. Open a water tap. Adjust the-flow to a thin stream. Charge a plastic pen refill by rubbing on flannel or wool. Bring it near the water stream. What do you observe ? Why ?
Q19. Two electroscopes X and Y are connected with a copper wire as shown. What will happen next? Explain.
13. What will happen if we touch the metal disc of a charged electroscope?