Student Contest #5

39 min read

ROUND 5 OF THE CONTEST IS LIVE!

 

HOW TO PARTICIPATE:

Step 1: Choose your class.

Step 2: Pick a subject (you can see both challenges before finalizing).

Step 3: Make a video answering the challenge (read the rules).

Step 4: Enter voucher code and upload the video! Done!


Contest ends
on: 31st May 2019 (6 PM)

(Round 4 winners will be announced by 14th April 2019)

ROUND 5 OF THE CONTEST IS LIVE!

 

HOW TO PARTICIPATE:

Step 1: Choose your class.

Step 2: Pick a subject (you can see both challenges before finalizing).

Step 3: Make a video answering the challenge (read the rules).

Step 4: Enter voucher code and upload the video! Done!


Contest ends
on: 31st May 2019 (6 PM)

(Round 4 winners will be announced by 14th April 2019)

Click here to see here the winners and solutions of Round 4!

CONTEST BEGINS

CLASSES 3 TO 5

Below figures are of different phases of the moon observed by a person on the earth.

In which phase of the moon, is its surface receiving the maximum light of the sun? Explain your answer.

Make a video explaining your answers.

Rules & Instructions
Reference Video
Enter Contest

Which of the following figures has a bigger perimeter? Explain your answer.

(Hint: scale or thread can be used to compare perimeter)

Q2. Which of the following figures has a bigger area? Explain your answer.

Make a video explaining your answers.

Rules & Instructions
Reference Video
Enter Contest

CONTEST BEGINS

CLASSES 6 TO 8

In the given figure, a lighted candle and its shadow formed on the table inside a closed room is shown. Can this shadow be formed by the light of the candle? Explain your answer.

Make a video explaining your answers.

Rules & Instructions
Reference Video
Enter Contest

Q1. The height of a father and his son in the mobile picture shown is proportional to their actual heights. If the actual height of the son is 120 cm, then what is the actual height of the father?

Solve this question, both using proportion, and unitary method.

Q2. Rahim has drawn maps of different sizes as shown below. The distance between City 1 and City 2 on Map 1 is 6 cm, and the distance between the same cities on Map 2 is 12 cm.

Rahim chose a rectangular region on Map 1 of area 8 cm2. What will be the area of the same rectangular region on Map 2?

Rules & Instructions
Reference Video
Enter Contest

CONTEST BEGINS

CLASSES 9 AND 10

Consider two objects kept close to each other. You observe that both of them start moving towards each other on their own. Do you think one of them must be a magnet? Give reason to support your answer.

Make a video explaining your answers.

Rules & Instructions
Reference Video
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Q1. A hexagonal prism and a cylinder of the same height are shown in the figure. The perimeter of the circular face of the cylinder is equal to the perimeter of the hexagonal face of the prism. Which shape will have the bigger curved (or lateral) surface area, prism or cylinder? Explain your answer.

Q2. In which of the following shapes, the volume can be defined as “Area of base  Height”?

What similarities do you find in those shapes?

Rules & Instructions
Reference Video
Enter Contest

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Rules & Instructions:

A) INSTRUCTIONS FOR CREATING AND UPLOADING VIDEO

  1. Create a video of less than 5 minutes.
  2. Size of video should be less than 100MB while uploading.
  3. You can use one Voucher Code to upload video only once.
  4. You can use animations and other visual effects to help improve presentation.
  5. The video should have the student who won the voucher as the primary explainer.

B) JUDGING CRITERIA

1. Explanation (10 points)
(i) Accuracy of explanation or relevant explanation of the given challenge.
(ii) Explanation of ALL the questions asked.

2. Presentation (5 points)
(i) Video should not exceed given time constraints.
(ii) It should be understandable.
(iii) Good use of props and effects.

3. Early-bird
(i) The first 1000 entries will get bonus points for submitting early.

Note: Open Door will not entertain requests to share scores.

To participate, register now: