Light, Sound, and Force | Science for Kids - video Dailymotion

VOLT Learning

Discover the wonders of light, sound, and force in this fun and educational science video for kids! Join Neha and Tushar as their mother explains key science concepts using everyday situations.   What your child will learn:   • What is light? (Luminous & non-luminous objects, natural & man-made sources) • How shadows are formed and why they are always black • How light travels • What is sound? (Different sources of sound, what causes noise) • What is force? (Push and pull explained simply) • Introduction to friction   Perfect for classroom learning or home revision, this video makes science easy and fun!   🔔 Don’t forget to Like, Share & Subscribe for more animated science videos for kids.   #ScienceForKids #LightAndSound #ForceAndFriction #EducationalVideo #VOLTLearning

Transcript

00:00light sound and force what will we learn we will learn about the following concepts in this lesson

00:17light shadow sound force let's get started neha and tushar did you clean your room after playing

00:30no mommy mommy we will clean it after coming back from the park

00:40no my dear you should always put the things at their right places after using them so now go

00:48and clean your room then both of you can go to the back okay mommy i cannot see anything neha can you

00:58see anything no tushar i am not able to see anything but while playing we were able to see

01:07everything yes exactly let's ask mommy about it she will help us mommy we went to our room

01:17and we could not see anything but earlier we were able to see everything that was present in the room

01:25why is it so mommy kids you are able to see everything because there was light in your room

01:34we need light to see things mommy what is light light is a form of energy the main source of light on the

01:48earth is the sun other sources like torch bulb candle lamp and stars also give us light

02:00these objects are called luminous objects mommy both sun and candle give us light are they the same

02:12no they both are different the sun is a natural source of light while candle is a man-made source of light

02:21light mommy are all objects luminous no my dear objects like tree chair table glass and pencil

02:35do not give us light and are called non-luminous objects we can see non-luminous objects only when

02:44light falls on them it means we can see things only when there is a source of light

02:53yes tushar you are right come we will go and see which source of light is present in your room

03:03so can you name the source of light present in this room

03:06yes mommy it is a bug very good neha tushar can you name another source of light present in this room

03:20mommy can we consider the window as a source of light

03:27no my child window is not a source of light the source of light is the sun

03:33the window helps the light of the sun to enter the room

03:41now i get it mommy that's very nice well there are a lot of things scattered around

03:49you both should clean all this now

03:53okay mommy look mommy there's something black on the ground near the chair

03:59oh that is the shadow of the teddy bear which you have placed on the chair

04:07oh but mommy what is a shadow

04:12when a source of light is blocked by an object a dark patch is formed on the opposite side of the

04:19source of light this dark patch is called a shadow you must have observed your shadow on the floor

04:28or ground when you stand outside in the sun it happens because the path of light coming from the sun

04:37is blocked by you mommy how does light travel light always travels in a straight line for example

04:50the light coming from the sun a torch and the headlight of a car travel in a straight line

04:59mommy can a shadow be colorful

05:04no my dear the shadow formed is always black or dark irrespective of the color of the object

05:11a shadow cannot be formed in the absence of a light source a shadow appears to be black

05:26black or dark irrespective of the color of the object it is always formed on the side opposite to the source of light

05:37it may be bigger or smaller than the object

05:40wow that's so amazing mummy mummy what is that it is very loud

05:49yes it is very disturbing as well it's the sound of a dog barking

05:59we all have heard the sounds like chirping of birds barking of dogs ringing of doorbells and crying of a baby

06:11all these sounds are very familiar we also make sounds when we speak or laugh

06:21sound is a form of energy produced by both living and non-living things

06:28different things produce different sounds

06:30yes just like the dog is barking loudly as compared to the chirping of birds

06:41they are so different

06:44both of you are right some sounds are loud while others are soft some sounds like music are pleasant

06:55while others like honking of a vehicle are unpleasant and disturbing this loud and unpleasant sound is called noise

07:07too much noise is disturbing we should always speak softly with everyone we should not play music system

07:17and television on a high volume it can disturb our family members and neighbors

07:26oh we will not play music system and television on a high volume

07:34yes mummy and i will also tell my friends not to make noise and disturb others

07:43that's very nice children children now start picking up all these toys and put them in the box

07:51this box

07:51this box is so heavy i am not able to move it

07:58don't worry let me try

08:00oh even i cannot move it oh my dear the box is too heavy you both need to apply more force to move it

08:13mommy what is force force is a push or a pull we need to apply force to do work

08:24we pull or push a door to open and close it similarly we push the pedals to ride a bicycle

08:35in all these cases we can see that an object is either pushed or pulled by applying force on it

08:44what all can we do by applying force we can do various things by applying force

08:54force we apply force to move an object we apply force to stop or slow down a moving object

09:04we apply force to change the shape or size of an object

09:10oh that means when we stretch a rubber band we are applying force on it

09:17that's right neha tushar can you give another example of applying force

09:23yes of course mommy we apply force when we catch a moving ball

09:31well done tushar you gave a brilliant example

09:35do you know the force that slows down or stops a moving object is called friction

09:40wow it means there are different types of forces mommy please tell us more about friction

09:50of course my dear when two surfaces come in contact with each other friction develops

09:59for example when our feet and the road come in contact with each other while walking

10:05friction develops between them and helps us to walk we would keep slipping on the floor without friction

10:16things slide when friction is very less things do not move when the friction is more

10:24but mommy how do we push this box to the corner yes mommy we are not able to move it

10:32that's easy why don't you both try to push it together maybe that way you can move it

10:44well done see when we work together we can achieve anything

10:50now you both can go and play outside with your friends

10:54thank you mommy for telling us so many wonderful things about light shadow sound noise force and

11:07friction we will share this information with our friends it was fun learning all this thank you

11:16what have we learned light helps us to see things around us

11:21examples of some luminous objects are sun star torch and lamp examples of some non-luminous objects are

11:30table chair and glass light always travels in a straight line a shadow always appears to be black

11:38or dark some sounds are pleasant while some are unpleasant we apply force to move an object

11:45stop or slow it down or change its shape or size friction helps us to walk children hope you enjoyed

11:54learning the concepts we will meet soon to learn new things

Light, Sound, and Force | Science for Kids

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