Physical exercise can be defined as the activity of the body that helps to maintain the physical well-being of a human. This note has information about the physical exercises for various parts of the body.
Physical exercise can be defined as the activity of the body that helps to maintain the physical well-being of a human. This note has information about the physical exercises for various parts of the body.
Things to Remember
Before doing physical exercises, we need to warm up our body. There are different ways of warm-up exercises according to the games.
While learning the ways to play volleyball, kabaddi, shot put, javelin throw, exercise for shoulder in a must.
Before playing football, basketball, high jump, long jump etc., we should first learn to exercise for the knees.
Students should learn the exercise for arms and chest before training or playing volleyball, basketball, shot put, javelin, wrestling etc.
Exercise is the number one prescription for back pain.
MCQs
No MCQs found.
Subjective Questions
Q1:
The vertices of \(\triangle\)ABC are A(1,4), B(4,6) and C(5,0).Sketch it in a graph paper and reflect in the x-axis. Write the coordinates of vertices of the image triangle.
Answer: <p>Solution:</p> <p>The vertices of \(\triangle\)ABC are A(1,4), B(4,6) and C(5,0).</p> <p>After reflection in x-axis,</p> <p>P(x,y)\(\rightarrow\)P'(x,-y)</p> <p>A(1,4)\(\rightarrow\)A'(1,-4)</p> <p>B(4,6)\(\rightarrow\)B'(4,-6)</p> <p>C(5,0)\(\rightarrow\)C'(5,0)</p> <p>Now,</p> <p>we draw \(\triangle\)ABC and \(\triangle\)A'B'C' in the same graph paper as below.</p> <figure class="inline-left" style="width: 300px;"><img src="/uploads/q25.png" alt="." width="365" height="233"><figcaption><br></figcaption></figure><p></p>
Q2:
Draw a \(\triangle\)ABC, whose vertices are A(2,1), B(5,1), and C(4,-2) on a graph paper and reflect it in the line y=x. Find the coordinates of A',B',C' and draw \(\triangle\)A'B'C' in the same graph paper.
Answer: <p>Solution:</p> <p>The vertices of \(\triangle\)ABC are A(2,1),B(5,1), and C(4,-2)</p> <p>A(2,1)\(\rightarrow\)A'(1,2)</p> <p>B(5,1)\(\rightarrow\)B'(1,5) and</p> <p>C(4,-2)\(\rightarrow\)C'(-2,4)</p> <p>Now,</p> <p>we draw \(\triangle\) ABC and \(\triangle\)A'B'C' in the same graph paper as below.</p> <figure class="inline-left" style="width: 300px;"><img src="/uploads/q27.png" alt="." width="329" height="210"><figcaption><br></figcaption></figure><figure class="inline-left" style="width: 400px;"><br><figcaption><br></figcaption></figure><p></p>
Q3:
Draw a \(\triangle\) ABC, whose vertices are A(5,6), B(7,4), and C(-3,2) in a graph paper and reflect it in y-axis.find the coordinates of A',B',C' and draw the image \(\triangle\)A'B'C' in the same graph paper.
Answer: <p>Solution:</p> <p>The vertices of \(\triangle\)ABC are A(5,6),B(7,4), and C(-3,2)</p> <p>After reflection in y-axis,</p> <p>P(x,y)\(\rightarrow\)P'(-x,y)</p> <p>A(5,6)\(\rightarrow\)A'(-5,6)</p> <p>B(7,4)\(\rightarrow\)B'(-7,4)</p> <p>C(-3,2)\(\rightarrow\)C'(3,2)</p> <p>Now, we draw \(\triangle\) ABC and \(\triangle\)A'B'C' in the same graph paper as below.</p> <p></p>
Q4:
Draw the image of the given geometrical shapes reflecting them in the line m.
Answer: <p>A perpendicular line is drawn from point A, B and C to the axis of reflection.The line from A be AP, from B be BR and from C be CQ. E longate lines AP,BR and CQ so that AP =PA', BR=RB' and CQ be QC'. Now join the points A', B' and C' and the formed \(\triangle\)A'BC' is the image of\(\triangle\) ABC in the axis m.</p> <figure class="inline-left" style="width: 340px;"><img src="/uploads/q28.png" alt="." width="340" height="213"><figcaption><br></figcaption></figure>
Q5:
Draw the image of the given geometrical shapes reflecting them in the line m.
Answer: <p>A perpendicular line is drawn from point A, B, C and D to the axis of reflection. The line from A be AP, from B be BQ and from C be CR and D be DS. E longate lines AP, BQ, CR and DS so that AP =PA', BQ=QB', CR=RC' and DS =SD'. Now join the points A', B',C' and D' and the formed \(\triangle\)A'BC' is the image of\(\triangle\) A'B'C'D' in the axis m.</p> <figure class="inline-left" style="width: 350px;"><img src="/uploads/q29.png" alt="." width="350" height="220"><figcaption><br></figcaption></figure>
Q6:
Draw the image of the given geometrical shapes reflecting them in the line m.
Answer: <p>A perpendicular line is drawn from point A, B, C,D and E to the axis of reflection. The line from A be AP, from B be BQ and from C be CR, D be DS and E be ET. E longate lines AP,BQ,CR,DS and ET so that AP =PA', BQ=QB', CR=RC', DS =SD' and ET=TE'. Now join the points A', B',C' D' and E' and the formed \(\triangle\)A'BC'D'E' is the image of\(\triangle\) in the axis m.</p>
Q7:
Using graph, draw the image of the given co.ordinates reflecting them in x-axis.
Answer: <p>Solution:</p> <p>Using graph, the image of the given co.ordinates reflecting them in x-axis are as follows:</p> <p>1. A(1,2)\(\rightarrow\)A'(1,-2)</p> <p>2. B(-2,3)\(\rightarrow\)B'(-2,-3)</p> <p>3. C(4,-5)\(\rightarrow\)C'(4,5)</p> <p>4. D(-6,6)\(\rightarrow\)D'(-6,-6)</p> <p>5. E(-5,-4)\(\rightarrow\)E'(-5,4)</p> <p>6. F(-2,5)\(\rightarrow\)F'(-2,-5)</p> <p>7. G(9,-8)\(\rightarrow\)G'(9,8)</p> <p>8. H(-3,-9)\(\rightarrow\)H'(-3,9)</p> <p>9. I(-10,12)\(\rightarrow\)I'(-10,-12)</p> <p>10. J(7,8)\(\rightarrow\)J'(7,-8)</p> <p></p>
Q8:
The vertices of \(\triangle\) ABC are A(1, 3), B(4, 5) and C(6, 2). Find the image of the \(\triangle\) ABC after reflection in x-axis and plot the \(\triangle\) ABC and its image \(\triangle\) A'B'C' on the graph paper.
Answer: <p>Solution:</p> <p>Plot the points A (-2, 5); B (-2, -1); C (-5, -4); D (-5, 2) on the graph paper. Now join AB, BC, CD and DA to get a parallelogram.</p> <p>When reflected in y-axis, we get A' (2, 5); B' (2, -1); C' (5, -4); D' (5, 2). Now join A'B', B'C', C'D' and D'A'.</p> <p>Thus, we get the parallelogram A'B'C'D as the image of the parallelogram ABCD in y-axis.</p> <figure class="inline-left" style="width: 300px;"><img src="/uploads/Capture6.PNG" alt="." width="350" height="245"><figcaption><br></figcaption></figure><p></p>
Q10:
Write the co-ordinates of the image of the following points when reflected in y-axis.
Answer: <p>Solution:</p> <p>Image of the following points when reflected in y-axis.</p> <p>(i) The image of (-3 , 3) is (3 , 3).</p> <p>(ii) The image of (2, 4) is (-2, 4).</p> <p>(iii) The image of (-2 , -6) is (2, -6).</p> <p>(iv) The image of (5, -7) is (-5, -7).</p> <figure class="inline-left" style="width: 400px;"><img src="/uploads/Capture7.PNG" alt="." width="400" height="276"><figcaption><br></figcaption></figure>
Answer: <p>Solution:</p> <p>(i) The image of A(-7, 9) is A' (7, 9).</p> <p>(ii) The image of B (-3, -6) is B' (3, -6).</p> <p>(iii) The image of C(4, 8) is C' (-4, 8).</p> <p>(iv) The image of D (5, -7) is D' (-5, -7).</p> <figure class="inline-left" style="width: 350px;"><img src="/uploads/graph6.PNG" alt="." width="350" height="239"><figcaption><br></figcaption></figure>
Q12:
What is the reflection of the following in origin?
Answer: <p>Solution:</p> <p>(i) The image of A(1, 4) is A’ (-1, -4).</p> <p>(ii) The image of b (-3, -7) is B’ (3, 7).</p> <p>(iii) The image of C (-5, 8) is C’ (5, -8).</p> <p>(iv) The image of D (6, -2) is D’ (-6, 2).</p> <figure class="inline-left" style="width: 350px;"><img src="/uploads/graph9.PNG" alt="." width="350" height="239"><figcaption><br></figcaption></figure>
Q13:
Draw the image of the triangle XYZ in x-axis. The co-ordinate of X, Y and Z being X (1, -5); Y (6, -1); Z (-4, -3)
Answer: <p>Solution:</p> <p>Plot the points X (1, -5); Y (6, -1); Z(-4, -3) on the graph paper. Now join XY, YZ and ZX; to get a triangle XYZ.</p> <p>When reflected in x-axis, we get X' (1, 5); Y' (6, 1); Z' (-4, 3). Now join X'Y', Y'Z' and Z'X'.</p> <p>Thus, we get a triangle X'Y'Z' as the image of the triangle XYZ in x-axis.</p> <figure class="inline-left" style="width: 300px;"><img src="/uploads/Capture8.PNG" alt="." width="340" height="238"><figcaption><br></figcaption></figure>
Q14:
Write the co-ordinates of the image of the following points when reflected in x-axis.
Answer: <p>Solution:</p> <p>(i)The image of (-5 , 2) is (-5 , -2).</p> <p>(ii) The image of (2, -7) is (2, 7).</p> <p>(iii) The image of (3, 4) is (3, -4).</p> <p>(iv) The image of (-5, -4) is (-5, 4).</p> <figure class="inline-left" style="width: 350px;"><img src="/uploads/graph10.PNG" alt="." width="350" height="239"><figcaption><br></figcaption></figure>
Answer: <p>Solution:</p> <p>The image of P (-6, -8) is P' (-6, 8).</p> <p>The image of Q (4, 6) is Q' (4, -6) .</p> <p>The image of R (-3, 2) is R' (-3, -2).</p> <p>The image of S (3, -2) is S' (3, 2).</p> <figure class="inline-left" style="width: 350px;"><figure class="inline-left" style="width: 350px;"><img src="/uploads/graph71.PNG" alt="." width="350" height="239"><figcaption><br></figcaption></figure><br><figcaption><br></figcaption></figure><p></p>
Q16:
Find the co-ordinates of the points obtained on rotating the point given below through 90° about the origin in clockwise direction.
Answer: <p>Solution:</p> <p>When rotated through 90° about the origin in clockwise direction, the new position of the above points are;</p> <p>(i) The new position of point P (3, 7) will become P' (7, -3)</p> <p>(ii) The new position of point Q (-4, -7) will become Q' (-7, 4)</p> <p>(iii) The new position of point R (-7, 5) will become R' (5, 7)</p> <p>(iv) The new position of point S (2, -4) will become S' (-4, -2)</p> <figure class="inline-left" style="width: 350px;"><figure class="inline-left" style="width: 350px;"><img src="/uploads/graph81.PNG" alt="." width="350" height="239"><figcaption><br></figcaption></figure><br><figcaption><br></figcaption></figure><p></p>
Q17:
Thr vertices of \(\triangle\)ABC are A(1,3), B(4,5) and (16,2). Find the image of the \(\triangle\) ABC after reflection in x-axis and and plot the \(\triangle\) ABC and its image \(\triangle\) A'B'C' on the graph paper.
The vertices of a triangle are P(2,3), Q(4,5) and R(6,2). Find the image of the \(\triangle\)PQR after reflection in y-axis and plot \(\triangle\)PQR and its image \(\triangle\) P'Q'R' on the graph paper.
The vertices of \(\triangle\)ABC are A(3,2), B(5,6) and C(8,1). Find the image of \(\triangle\)ABC under reflection about x-axis and plot \(\triangle\)ABC and it's image \(\triangle\)A'B'C' on the same graph paper.
Before doing physical exercises, we need to warm up our body. There are the steps in order to warm-up. There are different ways of warm-up exercises according to the games. We should focus on hands, wrist and fingers while playing volleyball. Likewise, we should mainly focus on exercises for a waist, hands etc. before playing football.
Players should run first before learning to play. Exercises for hands, legs, back, the stomach should be done accordingly. A trainer or teacher should first show the ways to do.
2. Exercise for Shoulder, Knee, and Waist
ssExercise for the shoulder: While learning the ways to play volleyball, kabaddi, shot put, javelin throw, exercise for shoulder in a must. We should first run in a line before doing the exercise. Then, we should push the wall for a while. If there is not any wall, partners can push each other’s palm in balance. Likewise, the right hand should make a ‘v’ figure. After putting the hand in ‘v’ figure, place the left hand above the right hand and slowly pull towards yourself. This act should be done with both the hands.
Exercise for the knee: Before playing football, basketball, high jump, long jump etc., we should first learn to exercise for the knees. The teacher should first do and show. Steps for exercising knees are:
Before exercising knees, we should first do the jogging. We should pull or bend our legs while exercising. We should stand on our left leg and pull our right feet to our hip. We should pull the right feet with the right hand.This should be done accordingly with both legs.
Students should stand in a row. Students should put the right leg ahead and bend on count 1. On count 2, they should put their hands on the right knee, On count 3, they should stretch the left leg hard and on count 4, they should stand at ease. Next time the legs should be different but in done the same way.
Exercise for waist: It is important to exercise the waist before playing any games. There may be less problem while attempting the exercise.
Following methods should be exercised while exercising:
Bend your body front and back:
Students should stand at ease. They should bend to touch the ground with the fingers on teacher’s count 1. On count 2, they should again stand in normal position. On count 3, they should hold their waist and look at the sky. And on count 4, they should again stand in the previous form. This process should be repeated for 5-6 times.
Bend your body right and left:
Likewise in the above method, at first they should stand normally at ease. Then, while on teacher’s count they should straight up their hands together. With the right hand holding the left, they should bend towards the right. Again, with the left hand holding the right, they should bend towards the left. This process should also be repeated for 5-6 times.
3. Exercise for arms and chest
Students should learn the exercise for arms and chest before training or playing volleyball, basketball, shot put, javelin, wrestling etc. These are the steps in order to exercise for arms and chest:
Catch and pull hands: Students should be in a pair and stand facing the same direction. One student should take one’s hand backward and another student should pull hands downwards. It should be done for 30-35 seconds.
Catch and pull elbow: Students should raise their right hand and bend it. Then with the left hand, it should be pulled towards the left side of the back of the neck.It should again be done with the left hand too.
4. Exercise for the back
Exercise is the number one prescription for back pain. There are few steps in order to avoid back pain. They are:
Touch the feet with each hand: Students should first stand at ease.Then they should expand their legs. They should now touch right feet with the left hand and left feet with the right hand. while touching the feet another hand should be straight pointing towards the sky. This process should be done 3-4 times.
Bend your back looking at the sky: Students should stand in a circle. They should first expand their legs. After that, they should hold their back with both the hands. Now slowly bend your back looking at the sky. Now come back to normal stage.This process should be done for 2-3 times.
