CBSE (Central Board of Secondary Education) Class-8 Science: Questions 356 - 361 of 465
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Question 356
Question MCQ▾
Frequency perceived by a listener is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Loudness | |
b. | Pitch | |
c. | None of the above | |
d. | Question does not provide sufficient data or is vague |
Question 357
Question MCQ▾
Sparks in the sky are called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Tsunami | |
b. | Lightning | |
c. | Earthing | |
d. | Charging |
Question 358
Question MCQ▾
Earthquake is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Storm wave | |
b. | Thunderstorm | |
c. | Phenomenon in which the ground suddenly and violently shakes | |
d. | Earthing |
Question 359
Question MCQ▾
Safety measures against lightening are:
Choices
Choice (4) | Response | |
---|---|---|
a. | Do not use wired phones | |
b. | Rush indoors to protect yourself | |
c. | Keep distance from vulnerable locations | |
d. | All a., b. and c. are correct |
Question 360
Question MCQ▾
Force of friction depends upon the:
Choices
Choice (4) | Response | |
---|---|---|
a. | Greater the roughness of the two surfaces greater is the force of friction | |
b. | State of roughness of two surfaces | |
c. | State of smoothness of two surfaces | |
d. | Both a. and b. are correct |
Question 361
Question MCQ▾
Lubrication is a process of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Fluid friction | |
b. | Converting dry friction into wet friction | |
c. | Use of lubricants for reducing friction | |
d. | Both b. and c. are correct |