Questions & answers for Chapter 10 Motion and measurement of distances

Chapter 10 Motion and measurement of distances Questions and Answers for class 6 Science

Find below Important MCQ-based objective questions for Chapter 10 Motion and measurement of distances prepared for CBSE students. All the syllabus of Class 6 Science Chapter 10 Motion and measurement of distances is covered with questions and answers. Each question is explained with a detailed solution. The entire syllabus of Chapter 10 Motion and measurement of distances is covered in the following worksheet for class 6 science. For more worksheets for class 6 science click on the link and do check out NCERT solutions for class 6 science. 

Find below Class 6 Science Chapter 10 Motion and measurement of distances Questions & Answer

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Class 6 Science Chapter 10 Motion and measurement of distances Questions & Answer Set-1

Science - MCQ on Motion And Measurement Of distances

Class VI

Q.1 Long ago, people developed boats on the pattern of

a. streamlined shape of birds.

b. streamlined shape of fish.

c. streamlined shape of submarine.

d. elongated shape of python.

Answer:

(b)

Explanation: Ancient people used logs with hollow cavity as boats. With time, they learned to put together the pieces of woods and made boats on the pattern of streamlined shape of fish to make boats for better propagation.

Q.2 Railroads were meant for

a. automobiles.

b. motorized boats and ships.

c. steam engine driven carriages and wagons.

d. supersonic aeroplanes and spacecraft.

Answer:

(c)

Explanation: Railroads were made for steam engine driven carriages and wagons.

They were not meant for other modes of transport.

Q.3 Taruna’s feet measure 13 cm each. She wants to measure the length of a room in terms of her feet. She covers the length of the room with 50 steps. The length of the room is

a. 3.84 cm.

b. 650 cm.

c. 3.84 m.

d. 650 m.

Answer:

(b)

Explanation: No. of steps=50

Length of each foot=13 cm

Length of the room= 13 X 50 cm= 650 cm.

Q.4 Measurement means the comparison between

a. two known quantities.

b. two unknown quantities.

c. an unknown quantity with all known quantities.

d. an unknown quantity with some known quantities.

Answer:

(d)

Explanation: We measure the amount of unknown quantity with the help of a known quantity.

Q.5. The fixed known quantity used for measuring unknown quantities is referred to as

a. unit.

b. length.

c. mass.

d. volume.

Answer:

(a)

Explanation: The fixed known quantity used for measuring unknown quantities is referred to as unit. Length, mass and volume are physical quantities measured with their respective units.

Q.6 A cubit is the length from

a. the elbow to the finger tips.

b. the finger tips of the left hand to those of the right hand.

c. the head to the heel.

d. the knee to the heel.

Answer:

(a)

Explanation: In ancient Egypt, the length from the elbow to the tips of finger was used as a unit to measure unknown lengths. This unit is called cubit.

Q.7 In one millimeter, there are

a. 100 cm.

b. 10 cm.

c. 1/10 cm.

d. 1/100 cm.

Answer:

(c)

Explanation: We know that

1 cm= 10 mm

or, 1/10 cm=1 mm.

Q.8 We measure the length of a curved line by using a

a. metre scale.

b. measuring cylinder.

c. metre scale and a measuring cylinder.

d. metre scale and a thread.

Answer:

(d)

Explanation: For measuringthe length of a curved line AB, we take a thread and put a knot on the thread near one of its ends. We place this knot on the point A. Then we place the thread along the length of the thread till we reach B. The final point of the thread is marked and finally the length of the thread is measured with a metre scale. This gives the length of the curved line.

Q.9 Kalpana is whirling around a stone tied with a string. The distance of the stone from her hand will

a. increase.

b. decrease.

c. remain constant.

d. first increase and start decreasing later.

Answer:

(c)

Explanation: Since the length of the string will remain constant, the distance ofthe stone from her hand will also remain constant.

Q.10 In one complete revolution, the tip of the second’s hand exhibits

a. rectilinear motion.

b. circular motion.

c. vibratory motion.

d. periodic motion.

Answer:

(b)

Explanation: Since the length of the second’s hand remains constant and its tip covers a circular path, its motion is said to be circular.

Q.11 Garima is playing on a swing. Her motion is said to be

a. rectilinear motion.

b. circular motion.

c. rotatory motion.

d. periodic motion.

Answer:

(d)

Explanation: Her motion includes to and fro movement and is repeated after every equal intervals of time. So, it is a periodic motion.

Q.12. A periodic motion is a type of motion where an object

a. repeats its motion after a fixed interval of time.

b. covers a circular path.

c. covers a rectilinear path.

d. remains at the same position.

Answer:

(a)

Explanation: A periodic motion is a type of motion where an object repeats its motion after a fixed interval of time. The object exhibits to and fro motion. It comes to its initial position again and again after a fixed interval of time.

Class 6 Science Chapter 10 Motion and measurement of distances Questions & Answer Set-2

Q.13 When Zakir beats on the membrane of his tabla, the membrane executes

a. rectilinear motion.

b. circular motion.

c. rotatory motion.

d. periodic motion.

Answer:

(d)

Explanation: The membrane executes to and fro motion when it is struck. So, it is executing periodic motion.

Q.14 The motion of the earth around the sun is a combination of

a. rectilinear motion and circular motion.

b. rectilinear motion and periodic motion.

c. rotatory motion and circular motion.

d. vibratory motion and circular motion.

Answer:

(c)

Explanation: The earth is rotating around its axis as well as following a circular path around the sun.

Q.15. Change in the position of an object can be determined by measuring

a. distance.

b. time.

c. speed.

d. volume.

Answer:

(a)

Explanation: A body is said to change its position when it moves from one place to the other. The distance between the final and initial points will give us the change in position of the body.

Q.16. Motion is the change in the position of an object with

a. distance.

b. speed.

c. time.

d. velocity.

Answer:

(c)

Explanation: A body is said to be in motion if it changes its position with respect to its surroundings and time.

Q.17. The movement of a snail on the ground exhibits

a. fast motion.

b. slow motion.

c. rotatory motion.

d. periodic motion.

Answer:

(b)

Explanation: A snail covers very less distance on the ground with time.

Q.18. Blood flows through our veins and arteries in

a. fast motion.

b. slow motion.

c. rotatory motion.

d. periodic motion.

Answer:

(a)

Explanation: Blood flows through almost 76,000 miles of arteries and veins in a smooth stream. It flows very fast with each heartbeat to supply nutrients and oxygen to various parts of our body.

Q.19 The distance covered by a body with time for slow motion will be

a. equal to fast motion.

b. greater than fast motion.

c. less than fast motion.

d. greater than or less than fast motion.

Answer:

(c)

Explanation: In case of slow motion, the distance covered by a body is very less with respect to time whereas in case of fast motion, the distance covered is large.

Q.20. The motion of second’s hand in a clock is

a. slower than that of the hour’s hand.

b. faster than that of the hour’s hand.

c. equal to that of the hour’s hand.

d. opposite to that of the hour’s hand.

Answer:

(b)

Explanation: The second’s hand completes the cycle of the clock in lesser time than the hour’s hand. It means that it covers greater distance than the hour’s hand. So. It is faster.

Q.21. The motion of the pendulum of a wall clock exhibiting to and fro movement is called

a. periodic motion.

b. rotatory motion.

c. rectilinear motion.

d. circular motion.

Answer:

(a)

Explanation: To and fro motion is called periodic motion. In this type of motion, the body repeats its motion again and again after equal intervals of time.