Some Natural Phenomena Worksheet-6
(a) Decibel (b) Richter & Meter
(c) Richter (d) Decibel & Richter
(a) Shaking of the earth's surface
(b) Tides in ocean
(c) The movement of earth's plate
(d) All of these
(i) You would keep an emergency kit always ready
(ii) You would have only open book shelves and open cupboards in your house
(iii) You would fix the cupboards to the walls
(iv) You would not keep breakable items on the upper shelves
(a) Only You would fix the cupboards to the walls is correct
(b) Both You would keep an emergency kit always ready and You would have only open book shelves and open cupboards in your house are correct
(c) All are correct
(d) You would keep an emergency kit always ready, You would fix the cupboards to the walls and You would not keep breakable items on the upper shelves are correct.
(a) Epinograph (b) Animometer
(c) Seismograph (d) None of these
(a) Unlike charges repel each other
(b) Moving charges constitute electric current
(c) A woollen cloth can not be charged
(d) None of these
(a) Fault lines (b) Epicentre
(c) Slick lines (d) None of these
(a) Tsunamis (b) Storm (c) Fault line (d) Shift wave
(a) Stress (b) Fault lines (c) Epicentre (d) None of these
(a) They acquire equal and similar charges
(b) They acquire equal and opposite charges
(c) They acquire different charges but in different amounts depending upon their masses
(d) They do not acquire any charge.
(a) To detect and test small electric charges:
(b) To calculate the amount of electric charge flowing through the conductor in the given interval of time
(c) To find out the presence of antimatter
(d) To test the presence of magnetic field
(a) By flooding the land with saline water
(b) By dissolving soil and rocks
(c) By increasing the water table of the place
(d) By decreasing the water table of the place
(a) Rains accompanied by lightning
(b) High temperature and humidity
(c) Cool breeze and rains
(d) Powerful water waves
(a) Static electricity (b) Current electricity
(c) Reflection of light (d) Refraction of light
(a) Helicopters (b) Submarines
(c) Satellites (d) Stars
(a) Coulombs (b) Amperes (c) Volts (d) Watts
Answer Key:
(1)-(d); (2)-(c); (3)-(d); (4)-(c); (5)-(b); (6)-(a); (7)-(a); (8)-(c); (9)-(b); (10)-(a); (11)-(a); (12)-(d); (13)-(a); (14)-(c); (15)-(a)