English

Why do children always slide down the slide and not slide up? If this slide were there in Sunita’s spacecraft, would children slide like this? Why?

Advertisements
Advertisements

Question

Why do children always slide down the slide and not slide up? If this slide were there in Sunita’s spacecraft, would children slide like this? Why?

Short/Brief Note
Advertisements

Solution

Children always slide down the slide and not slide up because of the gravitational force of the earth. If this slide were in Sunita’s spacecraft, then children would not be able to enjoy the slide because of zero gravity in the spacecraft. and children cannot slide instead they would float.

shaalaa.com
Sunita in Space
  Is there an error in this question or solution?
Chapter 11: Sunita in Space - Sunita in Space [Page 109]

APPEARS IN

NCERT Environmental Studies - Looking Around [English] Class 5
Chapter 11 Sunita in Space
Sunita in Space | Q 16.1 | Page 109

RELATED QUESTIONS

What do you think the earth looks like? Make a drawing of the earth in your notebook. On your drawing show where you are. Take a look at your friends’ drawings too.


If the earth is round like a globe, how is it that we do not fall off?


Close your eyes. Imagine that your class is a spaceship. Zooo...m – in 10 minutes you have entered space. Your spaceship is now going around the earth. Now say:

  • Are you able to sit in one place?
  • What about your hair?
  • Oh, look … where are your bags and books going?
  • what is your teacher doing? Where is her chalk?
  • How did you eat your food during the break? How did you drink water? What happened to the ball that you threw up?

Think why water flows downwards on any slope. On mountains, water flows downwards, not upwards.


Take a 5 rupee coin and a small piece of paper. The paper should be about one-fourth the size of the coin.

  • Hold the coin in one hand and the paper in the other. Drop them at the same time. What happened?
  • Now place the tiny paper on the coin and drop them. What happened this time? Surprised!

To play this you will need a small stone, a bigger stone (lemon-sized), a thick roll of paper (which can be made with layers of paper), a mouse, and an elephant made of paper.

- Take a string about 2 feet long.

- At one end of the string tie the small stone. Stick or tie the mouse to the stone. - Put the string into the roll of paper.

- At the other end of the string tie the bigger stone and stick the elephant.

- Hold the roll of paper and move your hand to rotate the small stone.

  • Who is pulling whom? You will be surprised! The mouse lifts the elephant! How did this magic happen?

At night look at the sky carefully for 5 minutes.

  • What could you see?
  • Did you see anything moving in the sky? What do you think it could be? A star or a shooting star or a satellite (satellites are used for the TV, telephones, and for weather reports). Find out more about this.

Given below are the times at which the moon rises and sets in Delhi (on the given days).

Date

Time of moonrise

(hours: minutes)

Time of moon (hours: minutes)set
28-10-2007 19:16 08:50
29-10-2007 20:17 10:03
30-10-2007 21:22 11:08
31-10-2007 22:29 12:03
  • On 28 October the moon came out at ___ minutes past ___ o’clock.
  • On 29 October the moon came out at ___ minutes past ___ o’clock.
  • On 29 October there was a difference of ___ hours and ___ minutes in the time of the moonrise (as compared to 28 October).

Looking at earth from the space, Sunita said, “Different countries cannot be seen as separate from here. These lines are on paper. They are made by us.” What do you understand by this?


Why don’t you try to do the same with a coin? How many centimeters away from the eye did you keep the coin to hide the moon?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×