gigantiska experiment

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Gigantiska experiment säsong 1

Upphovsland: Sverige

Säsonger och avsnitt

1. Kan kamelen stå på ägg?

Avsnitt 1 - Kan kamelen stå på ägg? , Säsong 1

Man kollar hur starkt ett äggskal är. Håller det för 750 kilo kamel?

2. Klarar motorcykeln trycket?

Avsnitt 2 - Klarar motorcykeln trycket? , Säsong 1

Man kollar vad som händer med en motorcykel som sänks till 10 000 meter under vattenytan.

3. Kan ett vattenglas lyfta en sumobrottare?

Avsnitt 3 - Kan ett vattenglas lyfta en sumobrottare? , Säsong 1

Man kollar hur starkt lufttrycket är och om det orkar lyfta en sumobrottare som väger 125 kilo.

4. Den flygande valen

Avsnitt 4 - Den flygande valen , Säsong 1

Man kollar om värme kan lyfta en 50 meter lång solluftballong.

5. Går det att göra en brudklänning av vatten och salt?

Avsnitt 5 - Går det att göra en brudklänning av vatten och salt? , Säsong 1

Man kollar om det går att göra en brudklänning av något annat än tyg.

6. Snurrande luftbalett

Avsnitt 6 - Snurrande luftbalett , Säsong 1

Vi kollar hur balettdansare kan skapa fart enbart med hjälp av kroppen.

7. Boll-koll med luftmotstånd

Avsnitt 7 - Boll-koll med luftmotstånd , Säsong 1

Vi kollar om bollar återvänder till en kastare som förflyttar sig.

9. Kan man lyfta en lastbil med bara ett långt järnrör?

Avsnitt 9 - Kan man lyfta en lastbil med bara ett långt järnrör? , Säsong 1

Vi kollar hur hävstångsprincipen fungerar.

10. Kan en boll stå still i luften?

Avsnitt 10 - Kan en boll stå still i luften? , Säsong 1

Vi kollar vad som händer med en boll som skjuts i väg bakåt från en bil som körs snabbt framåt.

Hittade du något som inte stämmer?

• Gigantiska experiment

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Gravity Experiments for Kids

July 5, 2021 By Emma Vanstone Leave a Comment

These gravity experiments are all fantastic demonstrations of gravity and a great way to learn about Isaac Newton and Galileo ‘s famous discoveries. If you enjoy them, do check our my book This IS Rocket Science which is full of exciting space activities demonstrating how rockets overcome gravity and other forces to launch into space followed by a tour of the solar system with an activity for each planet.

What is Gravity?

Gravity is the force that pulls objects towards the Earth. It’s the reason we walk on the ground rather than float around.

Gravity also holds Earth and the other planets in their orbits around the Sun.

Did you know – gravity exists on the Moon but it is not as strong as on Earth, which is why astronauts can jump higher on the Moon than on Earth. This article from ScienceAlert tells you how high you could jump on each planet in the Solar System compared to Earth.

Great Gravity Experiments for Kids

Galileo and gravity.

Galileo was a famous scientist in the 16th and 17th Century. His most famous observation was that two objects of the same size but slightly different mass (how much “stuff” it is made of) hit the ground at the same time, as far as he could tell, if they are dropped from the same height. This happens because the acceleration due to gravity is the same for both objects and that actually this acceleration has nothing to do with the mass of an object. This fact has been demonstrated many times, even on the moon with a feather and a hammer.

Back on our air-filled planet, if a feather and a ball are dropped from the same height they clearly do fall at different rates. This is because gravity is not the only force acting on the falling object, air resistance is also a factor and that does depend on quite a few properties of the object and the fluid it is falling in. This does include its mass, the surface area and how fast it is moving. The feather suffers a lot here being so light and having a much greater surface area.

Galileo dropped two balls of different weights but the same size off the Leaning Tower of Pisa, giving a hint that the mass of an object doesn’t affect how fast it falls.

However if a ball and feather are dropped in a vacuum , where there is no air resistance as there’s no air, the ball and feather will fall together and hit the ground at the same time.

Bottle Drop Experiment

Following on from the ball and feather experiment another great example of Galileo’s discovery is to half fill one plastic bottle and leave another ( the same size ) empty. If dropped from the same height they will hit the ground at the same time!

Issac Newton and Gravity

According to legend Issac Newton was sitting under an apple tree when an apple fell on his head, which made him wonder why if fell to the ground.

Newton published the Theory of Universal Gravitation in the 1680s, setting out the idea that gravity was a force acting on all matter. His theory of gravity and laws of motion are some of the most important discoveries in science and have shaped modern physics.

Film Canister Rocket

A film canister rocket is a fantastic demonstration of all three of Newton’s Laws of Motion , but it falls back to the ground thanks to gravity.

Water powered bottle rockets are another great fun example of gravity and lots of other forces too!

Defy gravity with a magnet

Did you know you can defy gravity using magnets. We love this activity as you can theme it however you want. Your floating object could be a spaceship in space, a flower growing towards the sun or even a plane in the sky.

The magnet holds the paperclip in the air as if it’s floating!

Straw Rockets – Gravity Experiment

Create your own straw rockets and launch at different angles to investigate how the trajectory changes. Of course these don’t have to be rockets, they could be anything you want, so get creative!

Parachutes are another great gravity experiment and perfect for learning about air resistance too!

Marble Runs

A DIY marble run is another hands on way to demonstrate gravity. Can you build one where the ball has enough energy to move uphill?

DIY Sling Shot

Finally, a simple slingshot is a brilliant and simple STEM project and perfect for learning about gravity as a shower of pom poms fall to the ground!

Last Updated on May 25, 2022 by Emma Vanstone

Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

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Simple Gravity Experiments

The Physical Factors Affecting Parachutes

Gravity is a fundamental part of nature that keeps our feet planted firmly on the ground. This unseen force is responsible for tides, keeping Earth from careening into the darkness of space, and for causing food to hit the kitchen floor when it slips from your hand. Though invisible, gravity's effects can be observed by performing simple and easy-to-do experiments.

Galileo's Experiment

Named after the scientist who is popularly believed (though not verified) to have performed this experiment, it involves taking two objects of different sizes and weights and dropping them to see which one hits the ground first. As the Earth's gravity affects objects at the same rate regardless of their weight, without air resistance the objects should hit the ground at the same time. Try this with different objects with varying weights and air resistance and observe its effects.

The Spinning Bucket

Showing the relation between motion and gravity, for this experiment you need a bucket with water and someone with a strong arm to spin it. In theory, when the bucket turns upside down the water should come spilling out as gravity pulls it downwards. Spinning it fast enough, the water tends to keep going in a straight line, counteracting the pull of gravity and thus wedging it to the end of the bucket, preventing the natural pull of gravity from spilling the water. This is why this effect, called “centrifugal force” is often referred to as artificial gravity.

The Hole in the Cup

For this experiment you need a paper cup and some water. Poke a hole in the cup and cover it with a finger; fill the cup with water. Take your finger from the hole and notice the water spills out. Though gravity pulls down both objects, only water moves freely (because you're holding the cup); thus, gravity forces the water out. Fill the cup again and drop it to the ground. Now that both objects are free to move, they drop at the same speed so the water isn't forced out of the hole.

Center of Gravity

A center of gravity experiment can be done quite easily; all that is required is a pencil or pen and your finger. Try to balance the pen at different positions on your finger until you reach the point where it doesn't fall off. This is the center of gravity of the pen, the point in which its weight averages out and, if it were in a weightless environment, the point at which it can freely rotate. Put on the cap and try to balance it again. As the weight of an object changes, so does its center of gravity.

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• Kids Science Experiments: Spinning Bucket of Water
• Discovery Channel: Gravity Gets You Down
• NASA: Center of Gravity

About the Author

Steve Johnson is an avid and passionate writer with more than five years of experience. He's written for several industries, including health, dating and Internet marketing, as well as for various websites. He holds a bachelor's degree from the University of Texas.

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Sexorna i Borrby 2013/14

Onsdag 24 oktober 2012, gigantiska experiment.

måndag 22 oktober 2012

Tisdag 16 oktober 2012, måndag 15 oktober 2012, tisdag 9 oktober 2012, nytt no-tema.

• Några historiska och nutida upptäckter inom fysikområdet och deras betydelse för människans levnadsvillkor och syn på världen.
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• Mätningar och mätinstrument, till exempel klockor, måttband och vågar och hur de används i undersökningar.
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måndag 8 oktober 2012

Lördag 6 oktober 2012.