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This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage-I A system having a set of standard units of measurement which was accepted all over the world is called International system of units (S.I. system) The S.I. system of units is based on |
| A. | F.P.S. system |
| B. | Metric system |
| C. | both of these |
| D. | None of these |
| Answer» C. both of these | |
| 352. |
The blades of a moving fan show |
| A. | circular motion |
| B. | rotatory motion |
| C. | translatory motion |
| D. | oscillatory motion |
| Answer» C. translatory motion | |
| 353. |
DIRECTION: Match Column-I with Column-II and select the correct answer using the code given below the column. Column ?I Column-II A. Bullock cart (p) Modern means of transport B. Space craft (q) Ancient unit of length C. Width of finger (r) Ancient means of transport D. Metric system (s) Developed in 1790 by the French |
| A. | A\[\to \](p); B\[\to \] (r); C\[\to \](q); D\[\to \](p) |
| B. | A\[\to \](q) ; B\[\to \](p); C\[\to \](s); D\[\to \](r) |
| C. | A\[\to \](r); B\[\to \](q); C\[\to \](p); D\[\to \](s) |
| D. | A\[\to \](s); B\[\to \](p); C\[\to \](q); D\[\to \](r) |
| Answer» C. A\[\to \](r); B\[\to \](q); C\[\to \](p); D\[\to \](s) | |
| 354. |
Motion is |
| A. | change in position of object with respect to the surroundings with passage of time |
| B. | change in position of object with respect to the observer with passage of time |
| C. | change in position of object with respect to the surroundings or with respect to an observer with passage of time |
| D. | None of these |
| Answer» D. None of these | |
| 355. |
The system having a set of standard units of measurement that has been accepted all over the world is called |
| A. | International system of units |
| B. | S.I. system of units |
| C. | Both the above |
| D. | Metric system |
| Answer» D. Metric system | |
| 356. |
Distance travelled by a body is |
| A. | the difference in distance between the initial position and final position of the moving body. |
| B. | the actual length of the path covered by the moving body in a straight line. |
| C. | the actual length of the path covered by the moving body irrespective of the direction in which the body moves. |
| D. | None of the above is correct. |
| Answer» D. None of the above is correct. | |
| 357. |
If a moving object repeats its motion after a fixed interval of time then the object is moving with which type of motion? |
| A. | Rectilinear |
| B. | Circular |
| C. | Periodic |
| D. | Rotatory |
| Answer» D. Rotatory | |
| 358. |
A moving object always remains at the same distance from a fixed point. The moving object is performing which type of motion. |
| A. | rectilinear |
| B. | circular |
| C. | rotatory |
| D. | All of these |
| Answer» C. rotatory | |
| 359. |
A measurement consists of |
| A. | number only |
| B. | unit only |
| C. | both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 360. |
Select the one that records the distance travelled by a vehicle. |
| A. | Manometer |
| B. | Speedometer |
| C. | Odometer |
| D. | None of these |
| Answer» D. None of these | |
| 361. |
Which of the following should be used to record time most accurately? |
| A. | Pendulum clock |
| B. | Quartz watch |
| C. | Watch with balance wheel |
| D. | All of these are equally accurate |
| Answer» C. Watch with balance wheel | |
| 362. |
The unit used for expressing the area of a figure is |
| A. | m |
| B. | \[{{m}^{2}}\] |
| C. | \[{{m}^{3}}\] |
| D. | All of these |
| Answer» C. \[{{m}^{3}}\] | |
| 363. |
Select the one that is an example of periodic motion |
| A. | A car taking a turn on a curved road |
| B. | March past of soldiers |
| C. | A bird flying in air |
| D. | A lift moving down |
| Answer» C. A bird flying in air | |
| 364. |
Which of the following is a suitable device to be used by tailors while taking measurements? |
| A. | a measuring tape |
| B. | a metre rod |
| C. | either (a) or (b) |
| D. | None of the above |
| Answer» B. a metre rod | |
| 365. |
Angstrom is a unit of length. 1 Angstorm is equal to |
| A. | \[{{10}^{8}}m\] |
| B. | \[{{10}^{-10}}m\] |
| C. | \[{{10}^{-8}}m\] |
| D. | \[{{10}^{10}}m\] |
| Answer» C. \[{{10}^{-8}}m\] | |
| 366. |
The up and down motion of the needle of a sewing machine as long as its wheel rotates is a |
| A. | rotatory motion |
| B. | circular motion |
| C. | periodic motion |
| D. | None of these |
| Answer» D. None of these | |
| 367. |
The motion of a coin moving over a carromboard can be classified as |
| A. | rectilinear motion |
| B. | circular motion |
| C. | periodic motion |
| D. | rotatory motion |
| Answer» B. circular motion | |
| 368. |
The unit of measurement used to measure distance between Delhi and Agra is |
| A. | metre |
| B. | kilometre |
| C. | centimetre |
| D. | Any of these |
| Answer» C. centimetre | |
| 369. |
While writing the symbol of any physical quantity |
| A. | it should be written in full form |
| B. | it should be written in form of a plural |
| C. | the symbol named after scientist should have capital letter |
| D. | All the above |
| Answer» B. it should be written in form of a plural | |
| 370. |
The symbol used for writing metre is |
| A. | M |
| B. | m |
| C. | metre |
| D. | All of these |
| Answer» C. metre | |
| 371. |
A body is said to be in motion, if with passage of time, its position changes |
| A. | with respect to its surroundings |
| B. | with respect to an observer |
| C. | either (a) or (b) |
| D. | None of these is correct |
| Answer» D. None of these is correct | |
| 372. |
If all parts of a moving body moves through the same distance in the same intervals of time, then it is said to possess a |
| A. | rectilinear motion |
| B. | rotatory motion |
| C. | circular motion |
| D. | translatory motion |
| Answer» E. | |
| 373. |
Which of the following units when used will give the same results of measurement for every person? |
| A. | Constant unit |
| B. | Fixed unit |
| C. | Standard unit |
| D. | All of these |
| Answer» D. All of these | |
| 374. |
On a scale the main divisions are marked in centimetres and each centimetre on this scale is further divided into 10 parts. The smallest part of this scale will be equal to |
| A. | 1cm |
| B. | 0.01cm |
| C. | 1 mm |
| D. | mm |
| Answer» D. mm | |
| 375. |
In the S.I. system of units the unit of length is |
| A. | metre |
| B. | kilometer |
| C. | centimetre |
| D. | All of these |
| Answer» B. kilometer | |
| 376. |
The branch of physics in which we study the body at rest and in motion is called |
| A. | mechanics |
| B. | acoustics |
| C. | optics |
| D. | electronics |
| Answer» B. acoustics | |
| 377. |
Metric system was first created in |
| A. | 1780 AD |
| B. | 1790 AD |
| C. | 1760 AD |
| D. | None of these |
| Answer» C. 1760 AD | |
| 378. |
Which country was the first to create the metric system? |
| A. | Britain |
| B. | America |
| C. | France |
| D. | Japan |
| Answer» D. Japan | |
| 379. |
Which of the following means of transport was developed in 19th century? |
| A. | Aeroplanes |
| B. | Supersonic aeroplanes |
| C. | Space-craft |
| D. | None of these |
| Answer» E. | |
| 380. |
Rail travel started in the |
| A. | 15th century |
| B. | 17th century |
| C. | 19th century |
| D. | 20th century |
| Answer» D. 20th century | |
| 381. |
Mrs. Raveena leaves her house at 10:30 am for office and returns about 4:30 pm. What is her displacement in this time (distance between Raveena's house and office is 1 km)? |
| A. | zero |
| B. | \[\frac{1}{6}km\] |
| C. | 1 km |
| D. | cannot say |
| Answer» B. \[\frac{1}{6}km\] | |
| 382. |
A quintal is a measure of |
| A. | length |
| B. | mass |
| C. | time |
| D. | temperature |
| Answer» C. time | |
| 383. |
Look at the things shown below. Observe the motion of pendulum of clock, strings of guitar, the gong of bell, the surface of tabla. Motions of all of these can be classified as (i) (ii) (iii) (iv) |
| A. | Rotational motion |
| B. | Circular motion |
| C. | Periodic motion |
| D. | All of these |
| Answer» D. All of these | |
| 384. |
DIRECTIONS: Read the following three stamens carefully and choose the correct option. Statement-1: A wheel rolling on the surface has a rotatory as well as oscillatory motion. Statement-2: The earth going around the sun has a circular as well as translatory motion. Statement-3: The swinging pendulum of a wall clock performs both oscillatory and periodic motion. |
| A. | Statement (1) and (3) are incorrect while statement (2) is correct. |
| B. | Statement (1) and (2) are incorrect while (3) is correct. |
| C. | All the statements are correct |
| D. | All the statements are incorrect. |
| Answer» C. All the statements are correct | |
| 385. |
Sumit from his home (A) reaches his friend Abhishek's home (C) via Ananya's home (B) as shown in the figure. Then the displacement and distance travelled by Sumit are respectively. |
| A. | AB and AC + BC |
| B. | AC and AB + BC |
| C. | BC and AB + AC |
| D. | AC and AC + BC |
| Answer» C. BC and AB + AC | |
| 386. |
DIRECTIONS: Read the following three stamens carefully and choose the correct option. Statement-1: Quantity which can be measured is called physical quantity. Statement-2: Measurement is the comparison of unknown quantity with a known standard quantity of same kind. Statement-3: A standard unit is a standard measure of some definite quantity. |
| A. | Statement (1) and (3) are incorrect while statement (2) is correct. |
| B. | Statement (1) and (2) are incorrect while (3) is correct. |
| C. | All the statements are correct |
| D. | All the statements are incorrect. |
| Answer» D. All the statements are incorrect. | |
| 387. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: The motion of a ball rolling on the ground is nothing but a rectilinear motion. Reason: The motion of ball rolling on the ground is a combination of different types of motion. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» E. | |
| 388. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: Motion of moon around the earth is a circular motion. Reason: In a circular motion, the distance of object from a fixed point remains the same. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true but R is not the correct explanation of A. | |
| 389. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: While measuring the length, of the observer should be exactly above that point of measurement to avoid the parallax error. Reason: The scale used to measure the length of the object must be greater than the length of the object. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» D. A is false but R is true. | |
| 390. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: If an object travels in such away that it comes back to the starting position, then the displacement is zero but, the distance travelled is not zero. Reason: The displacement is the shortest distance between the initial and final position of the body whereas, distance is the actual path length covered by an object. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true but R is not the correct explanation of A. | |
| 391. |
DIRECTIONS: React the passage given below and answer the questions that follow. Passage Observe a tailor working on a sewing machine. These wing machine remains at the same location while its wheel moves with a circular motion. It also has a needle that moves up and down continuously, as long as wheel rotates. The up and down motion of the needle of sewing machine can be classified as |
| A. | rotatory motion |
| B. | circular motion |
| C. | periodic motion |
| D. | None of these |
| Answer» D. None of these | |
| 392. |
A metric tonne is equal to |
| A. | 1000kg |
| B. | \[{{10}^{6}}g\] |
| C. | \[{{10}^{9}}mg\] |
| D. | All of the above |
| Answer» E. | |
| 393. |
Which among the following is the smallest unit of length? |
| A. | decimetre |
| B. | angstrom |
| C. | micrometre |
| D. | kilometer |
| Answer» C. micrometre | |
| 394. |
Which of the following is not a system of measurements? |
| A. | FPS |
| B. | FPO |
| C. | MRS |
| D. | CGS |
| E. | None of these |
| Answer» C. MRS | |
| 395. |
Which of the following motions is/are periodic as well as oscillatory motion? (i) (ii) (iii) (iv) |
| A. | (i), (ii) and (iii) |
| B. | (ii) only |
| C. | (i), (iii) and (iv) |
| D. | (iii) only |
| Answer» C. (i), (iii) and (iv) | |
| 396. |
20 seconds is equal to _____. |
| A. | \[\frac{1}{4}\]minute |
| B. | \[\frac{1}{2}\]minute |
| C. | \[\frac{1}{5}\]minute |
| D. | \[\frac{1}{3}\]minute |
| E. | None of these |
| Answer» E. None of these | |
| 397. |
Match the following and select the correct option from the codes given below. Column I Column II (a) Railway engine (i) Quintal (b) Packet of chilli powder (ii) kg (c) Sack of wheat (iii) mg (d) Huge bag of sand (iv) g (e) Aspirin tablet ton (v) Metric |
| A. | (a)-(v), (b)-(iv), (c)-(i), (d)-(ii), (e)-(iii) |
| B. | (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv), (e)-(v) |
| C. | (a)-(ii), (b)-(iv), (c)-(v), (d)-(iii), (e)-(i) |
| D. | (a)-(iii), (b)-(ii), (c)-(iv), (d)-(v), (e)-(i) |
| Answer» B. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv), (e)-(v) | |
| 398. |
Match the following: Column A Column B (i) 1 Millennium [A] 24 hours (ii) 1 Decade [B] 100 years (iii) 1 Century [C] 10 years (iv) 1 Day [D] 1000 years |
| A. | (i-C), (ii-A), (iii-D), (iv-B) |
| B. | (i-C), (ii-D), (iii-B), (iv-A) |
| C. | (i-D), (ii-C), (iii-B), (iv-A) |
| D. | (i-D), (ii-C), (iii-A), (iv-B) |
| E. | None of these |
| Answer» D. (i-D), (ii-C), (iii-A), (iv-B) | |
| 399. |
One centimeter on a scale is divided into 20 equal divisions. The least count (minimum value) of this scale is |
| A. | 20 cm |
| B. | 1 mm |
| C. | 0.1 mm |
| D. | 0.5 mm |
| Answer» E. | |
| 400. |
Which of the following statements is correct for measuring the length using a ruler? |
| A. | Ruler should be placed away from the object whose length is to be measured |
| B. | Worn out portions of the ruler should be used for measuring. |
| C. | Keep your eye vertically above the point where the measurement is to be taken. |
| D. | All the above |
| E. | None of these |
| Answer» D. All the above | |