Weather and Climate

Climate is the average weather pattern of the certain area experienced over a long time. This note has information about climate and weather.

Summary

Climate is the average weather pattern of the certain area experienced over a long time. This note has information about climate and weather.

Things to Remember

  • Climate is the average weather pattern of the certain area experienced over a long time. 
  • Climate is also not static and changes due to natural factors. 
  • The state of the atmosphere at a particular place and as time regards heat, dryness, cloudiness, rain, wind, etc. is called weather. 

MCQs

No MCQs found.

Subjective Questions

Q1:

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.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution;</p> <p>Under reflection about x-axis,</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) A(1, 3) \(\rightarrow\) A'(1, -3)</p> <p>B(4, 5) \(\rightarrow\) B'(4, -5) and</p> <p>C(6, 2) \(\rightarrow\) C'(6, -2)</p> <p>\(\triangle\)ABC and its image \(\triangle\)A'B'C' are shown on the graph.</p> <p></p> <figure class="" style="width: 350px;"><img src="/uploads/11.JPG" alt="z" width="350" height="368"><figcaption><br></figcaption></figure><p></p>

Q2:

The vertices of \(\triangle\)ABC are A(2, 3), B(4, 5) and C(6, 2). Find the image of the \(\triangle\)ABC after reflection in y-axis and plot the \(\triangle\)ABC and its image \(\triangle\)A'B'C' on the graph paper.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution;</p> <p>Under reflection about y-axis,</p> <p>P(x, y) \(\rightarrow\) P'(-x, y)</p> <p>\(\therefore\) A(2, 3) \(\rightarrow\) A'(-2, 3)</p> <p>B(4, 5) \(\rightarrow\) B'(-4, 5) and</p> <p>C(6, 2) \(\rightarrow\) C'(-6, 2)</p> <p>\(\triangle\)ABC and its image \(\triangle\)A'B'C' are shown on the graph.</p> <p></p> <figure class="inline-left" style="width: 300px;"><img src="/uploads/12.JPG" alt="z" width="350" height="371"><figcaption><br></figcaption></figure><p></p>

Q3:

The vertices of \(\triangle\)PQR are P(3, 1), Q(5, 4) and R(2, 6). Find the image of the \(\triangle\)PQR after reflection in x-axis and plot the \(\triangle\)PQR and its image \(\triangle\)P'Q'R' on the graph paper.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution;</p> <p>Under reflection about x-axis,</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) P(3, 1) \(\rightarrow\) P'(3, -1)</p> <p>Q(5, 4) \(\rightarrow\) Q'(5, -4) and</p> <p>R(2, 6) \(\rightarrow\) R'(2, -6)</p> <p>\(\triangle\)PQR and its image \(\triangle\)P'Q'R' are shown on the graph.</p> <figure class="inline-left" style="width: 350px;"><img src="/uploads/13.JPG" alt="x" width="350" height="369"><figcaption><br></figcaption></figure><p></p> <p></p>

Q4:

Let, A(-4, 5) and B(6, -2) be two points. Find the image of the line AB under reflection about x-axis. Present AB and its image  A'B' on the graph.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) A(-4, 5) \(\rightarrow\) A'(-4, -5) and</p> <p>B(6, -2) \(\rightarrow\) B'(6, 2)</p> <p>Line AB and its image A'B' are shown on the graph.</p> <p></p> <figure class="" style="width: 350px;"><img src="/uploads/14.JPG" alt="z" width="350" height="370"><figcaption><br></figcaption></figure><p></p>

Q5:

Let, X(1, 3) and Y(4, 5) be two points. Find the image of the line XY under reflection about y-axis. Present XY and its image X'Y' on the graph.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution;</p> <p>Under reflection about y-axis,</p> <p>P(x, y) \(\rightarrow\) P'(-x, y)</p> <p>\(\therefore\) X(1, 3) \(\rightarrow\) X'(-1, 3) and</p> <p>Y(4, 5) \(\rightarrow\) Y'(-4, 5)</p> <p>Line XY and its image X'Y' are shown on the graph.</p> <figure class="" style="width: 350px;"><img src="/uploads/zcxxxxxxxxxxxxxx.JPG" alt="z" width="350" height="412"><figcaption><br></figcaption></figure><p></p> <p></p> <figure class="" style="width: 350px;"><br><figcaption><br></figcaption></figure>

Q6:

Let, A(-5, -2) and B(2, 3) be two points. Find the image of the line AB under reflection about x-axis. Present AB and its image  A'B' on the graph.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) A(-5, -2) \(\rightarrow\) A'(-5, 2) and</p> <p>B(2, 3) \(\rightarrow\) B'(2, -3)</p> <p>Line AB and its image A'B' are shown on the graph.</p> <p></p> <figure class="" style="width: 350px;"><img src="/uploads/16.JPG" alt="Z" width="350" height="415"><figcaption><br></figcaption></figure><p></p>

Q7:

Let, A(-5, -2) and B(2, 3) be two points. Find the image of the line AB under reflection about y-axis. Present AB and its image  A'B' on the graph.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about y-axis</p> <p>P(x, y) \(\rightarrow\) P'(-x, y)</p> <p>\(\therefore\) A(-5, -2) \(\rightarrow\) A'(5, -2) and</p> <p>B(2, 3) \(\rightarrow\) B'(-2, 3)</p> <p>Line AB and its image A'B' are shown on the graph.</p> <figure class="" style="width: 350px;"><figure class="" style="width: 350px;"><img src="/uploads/171.JPG" alt="z" width="350" height="392"><figcaption></figcaption></figure><br><figcaption><br></figcaption></figure><p></p> <p></p>

Q8:

Find the image of point P(6, 4) under the reflection about x-axis.




Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) The image of P(6, 4) \(\rightarrow\) P'(6, -4)</p> <figure class="" style="width: 350px;"><img src="/uploads/zdfsdfsf.JPG" alt="z" width="350" height="395"><figcaption><br></figcaption></figure><figure class="" style="width: 350px;"><br><figcaption><br></figcaption></figure>

Q9:

Find the image of point Q(4, -8) under the reflection about x-axis.


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) The image of Q(4, -8) \(\rightarrow\)Q'(4, 8)</p> <figure class="" style="width: 350px;"><img src="/uploads/19.JPG" alt="z" width="350" height="391"><figcaption><br></figcaption></figure>

Q10:

Find the image of point R(-4, 0) under the reflection about y-axis.


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about y-axis</p> <p>P(x, y) \(\rightarrow\) P'(-x, y)</p> <p>\(\therefore\) The image of Q(-4, 0) \(\rightarrow\) Q'(4, 0)</p> <figure class="" style="width: 350px;"><img src="/uploads/20.JPG" alt="z" width="350" height="405"><figcaption><br></figcaption></figure>

Q11:

Find the image of point S(-4, -6) under the reflection about y-axis.


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) The image of S(-4, -6) \(\rightarrow\) S'(-4, 6)</p>

Q12:

Find the image of point A(-2, 5) under the reflection about y-axis.


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection about y-axis</p> <p>P(x, y) \(\rightarrow\) P'(-x, y)</p> <p>\(\therefore\) The image of A(-2, 5) \(\rightarrow\) A'(2, 5)</p>

Q13:

Find the image  under reflection about y-axis of the given points (3, 4) and (8, 10). Present it on graph.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Let AB be the given point, then</p> <p>A(3, 4) and B (8, 10)</p> <p>Under reflection about y-axis</p> <p>P(x, y) \(\rightarrow\) P'(-x, y)</p> <p>\(\therefore\) A(3, 4) \(\rightarrow\) A'(-3, 4) and</p> <p>B(8, 10) \(\rightarrow\) B'(-8, 10)</p> <p>line AB and its image A'B' are shown on the graph.</p> <p></p> <p></p>

Q14:

Find the image  under reflection about x-axis of point G(0, 6).


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) The image of G(0, 6) \(\rightarrow\) G'(0, -6)</p>

Q15:

Find the image  under reflection about x-axis of point G(0, -4).

 


Type: Very_short Difficulty: Easy

Show/Hide Answer
Answer: <p>Solution:</p> <p>Under reflection x-axis</p> <p>P(x, y) \(\rightarrow\) P'(x, -y)</p> <p>\(\therefore\) The image of G(0, -4) \(\rightarrow\) G'(0, 4)</p>

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Weather and Climate

Weather and Climate

Weather

The state of the atmosphere at a particular place and as time regards heat, dryness, cloudiness, rain, wind, etc. is called weather. It can affect only a small area as well. If the temperature of any place is increases, then the hot air rises up and there is less pressure of air. The air starts to blow fast from the areas where there is more air pressure to these areas which is called wind. The rainfall occurs if the air carrying cloud comes in that area. In this way, the temperature of the air, air pressure, change in cloud causes a change in weather.

Climate

The climate is the average weather pattern in the certain area experienced over a long time. The climate is also not static and changes due to natural factors. But natural factors account for very little and slow changes only. Due to unchecked human activities the climate of the globe is changing much more quickly than it would do naturally. Such a change is called climate change, which is one of the greatest challenges the world community is facing in the modern time.

Lesson

Our Earth

Subject

Social Studies and Population Education

Grade

Grade 8

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