What goes up must come down! Have you ever heard this phrase before? This refers to the concept of gravity. In Gravity for Kids, you will learn about gravitational force and how it works in the universe. Gravity is a force of attraction between objects. Several things affect the strength of an object's gravitational pull.
Did you know that every single object in the universe has a gravitational force? Even you! This is because objects have mass. The greater an object's mass, the greater its gravitational force. This is why the gravity on Earth is way stronger than your own gravitational force. It's also the reason you end up falling back toward the earth when you jump in the air.
Sir Isaac Newton and Albert Einstein are the two most famous scientists when it comes to studying the concept of gravitational force. Newton discovered that the rate of the gravitational force of the earth will be the same for every object regardless of its weight. If you dropped a brick and an apple off a building at the same time, they would hit the ground at the same time.
Albert Einstein discovered that gravity effects light as well, even though it has no mass. Light turns more and more red as gravity pulls on it. Human eyes cannot detect the change, but scientists have been able to use special instruments to measure light's color. Black holes have more mass than anything in the universe. Because of this, even light gets sucked in and stuck!
We hope you and your student(s) enjoyed learning about this cool natural force! If you want to learn even more, head over to our website and download one of our many free lesson plans about gravity and related topics, full of activities, worksheets, and more!
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What you will learn in Gravity for Kids:
0:00 Introduction to gravitational force
0:55 Difference between mass and weight
1:33 How we exert gravitational force
2:04 Greater mass equals greater gravitational force
4:12 Sir Isaac Newton’s contribution to the concept of gravity
5:08 Gravity depends on mass and distance
6:09 Albert Einstein’s contribution to the concept of gravity
6:58 Review of the facts
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4 май 2024
