Questions & answers for Chapter 8 Body movements

Chapter 8 Body movements Questions and Answers for class 6 Science

Find below Important MCQ-based objective questions for Chapter 8 Body movements prepared for CBSE students. All the syllabus of Class 6 Science Chapter 8 Body movements is covered with questions and answers. Each question is explained with a detailed solution. The entire syllabus of Chapter 8 Body movements 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 8 Body movements Questions & Answer

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​​​​​​​​​​​​​​Class 6 Science Chapter 8 Body movements Questions & Answer Set-1

Science - MCQ on Body movements

Class VI

Q.1 The joint, where one bone fits into the half cavity of other bone, is known as

a. fixed joint.

b. ball and socket joint.

c. pivotal joint.

d. hinge joint.

Answer:

(d) hinge joint

Bones of this joint can only move back and forth like a door, e.g., elbow and knee.

Q.2 Muscles change shape due to

a. expansion.

b. contraction.

c. bone.

d. joint.

Answer:

(b) contraction

Muscles change shape due to contraction and relaxation. Contraction causes muscles to bulge and shorten.

Q.3 A cockroach can walk, fly and

a. crawl.

b. slither.

c. climb.

d. swim.

Answer:

(c) climb

Cockroach can walk, climb and fly with the help of 3 pairs of legs and 2 pairs of wings. It has an outer skeleton made up of different units that helps in its body movements.

Q.4 Ball and socket joint allow

a. movement in one direction.

b. movement in all direction.

c. rotation about a fixed point.

d. backward movement.

Answer:

(b) movement in all direction

Ball and socket joint help in the movement of two bones in all directions because the rounded end of one bone fits into the cavity of other bone.

Q.5 Points where two bones of a body are joined are called

a. skeleton.

b. cartilage.

c. joints.

d. platelets.

Answer:

(c) joints

Joints are necessary for the movement of body parts because bones are hard and cannot be bent.

Q.6 Rib bones join backbone and

a. chest bone.

b. shoulder bone.

c. pelvic bone.

d. neck.

Answer:

(a) chest bone

Rib cage consists of 12 pairs of curved rib bones in a chest. These rib bones join backbone and chest bone forming a box called rib cage.

Q.7 The joint in which a cylindrical bone rotates in a ring is called

a. ball and socket joint.

b. hinge joint.

c. pivotal joint.

d. fixed joint.

Answer:

(b) pivotal joint

The joint where our neck joins our head is a pivotal joint. It allows our head to bend forward and backward and move right and left.

Q.8 The rays used to see the condition and position of a bone in a body skeleton is

a. Gamma rays.

b. Beta rays.

c. X-rays.

d. Y-rays.

Answer:

(c) X-rays

X-rays are radio rays used to photograph the bones in the skeleton. X-rays help to find the shape and number of bones in a body.

Q.9 A framework of the body made of bones and cartilage is called

a. wings.

b. skeleton.

c. antennae.

d. skull.

Answer:

(b) skeleton.

Skeleton provides:

• Shape to the body
• Protection to the inner organs
• Helps in the movement of body parts

Q.10 The structure made up of many bones in a head is called

a. pelvic bone.

b. chest bone.

c. pivotal joint.

d. skull.

Answer:

(d) skull

Skull is the structure made up of many bones joined together in a head. Fixed joints join bones in a skull and protect the brain.

Q.11 Joints between the bones of skull are called

a. ball and socket joint.

b. hinge joint.

c. pivotal joint.

d. fixed joint.

Answer:

(d) fixed joint

In fixed joint, bones are fixed with each other and they cannot move.

Q.12 The structure found in the upper portion of an ear lobe is known as

a. bone.

b. joint.

c. cartilage.

d. eardrum.

Answer:

(c) cartilage

Soft structures that support body are called cartilages. These are softer than bones and can be bent.

Q.13 The rays that help in locating a fracture is called

a. beta rays.

b. alpha rays.

c. gamma rays.

d. X-rays.

Answer:

(d) X-rays

X-rays are used to see bones in a skeleton. It helps to find the shape and number of bones in a body. In X-ray images, bones can be seen as white structures against black background. Any fracture or injury in the bones can be worked out with the help of X-ray images.

​​​​​​​​​​​​​​Class 6 Science Chapter 8 Body movements Questions & Answer Set-2

Q.14 The number of pairs of curved rib bones in the chest of a human body is

a. 4.

b. 8.

c. 12.

d. 14.

Answer:

(c) 12.

These 12 pairs of ribs join the backbone and the chest bone.

Q.15 Another name used for vertebral column present at the back of a human body is

a. back bone.

b. pelvic bone.

c. skeleton.

d. skull.

Answer:

(a) back bone

Back bone is a long tubular structure starting from neck and running in the back portion of a human body. It consists of many small bones called vertebrae.

Q.16 On each side, shoulder bones consist of

a. only one bone.

b. a pair of muscles.

c. two bones.

d. three bones.

Answer:

(b) two bones

Q.18 Bone that serves the purpose of sitting is

a. rib cage.

b. ankle bone.

c. pelvic bone.

d. skull.

Answer:

(c) pelvic bone

Pelvic bones enclose the portion of a body below the stomach. These are the bones, which act like a socket and in which the leg bones fit. This makes our legs to move freely without walking.

Q.19 The part of a skeleton protecting the brain of human beings is called

a. rib cage.

b. skull.

c. pelvic bone.

d. cartilage.

Answer:

(b) skull

Skull is the structure made up of many bones in the head. Bones in the skull are joined by fixed joints. It protects the brain inside.

Q.20 Protection to inner organs is provided by

a. rib cage.

b. pelvic region.

c. skeleton.

d. skull.

Answer:

(c) skeleton

The framework of a body made of bones and cartilage is called skeleton. It

provides:

• Shape to the body
• Protection to inner organs

Helps in the movement of the parts of a body.

Q.21 Soft structures that provide support to a human body are called

a. cartilage.

b. joint.

c. bone.

d. muscles.

Answer:

(a) cartilage

Cartilages are the additional part of our skeleton, which are softer than bones and thus can be bent.

Q.22 The colour of bones as seen in an X-ray image is

a. blue.

b. white.

c. grey.

d. black.

Answer:

(b) white

In X-rays, bones can be seen as white structures against black background.

Q.23 Crawl is a kind of movement that is exhibited by

a. earthworm.

b. cockroach.

c. bird.

d. fish.

Answer:

(a) earthworm

Earthworm has no bones. It crawls with the help of muscles and bristles.

Q.24 Joint in the hip of a human body is an example of

a. ball and socket joint.

b. hinge joint.

c. fixed joint.

a. pivotal joint.

Answer:

(a) ball and socket joint

Ball and socket joint move in all directions and the rounded end of one bone fits into the cavity of other bone.

Q.25 Tail of fish in water helps it in

a. creeping.

b. balancing.

c. Killing the prey.

d. cleaning the body.

Answer:

(b) balancing

Fins and tail help a fish to maintain balance in water while swimming.

Q.26 While moving, snakes proceed in forward direction with the help of

a. legs.

b. making loop.

c. spines.

d. hissing sound.

Answer:

(b) loop

Snake has a long backbone made of small bones. It slithers with the help of many thin muscles. It moves by making loops of its body. This pushes the body in forward direction.

Q.27 Joints are necessary for taking up the process of

a. respiration.

b. excretion.

c. movement.

d. digestion.

Answer:

(c) movement

Joints are points where two body parts join. They are necessary for the movement because bones are hard and cannot be bent.