### Gravity Presentation

Transcript: How fast does Gravity pull you down??? Mass is the amount of matter something contains, and weight is the measurement of the pull of gravity on an object. Weight is how you pull on gravity. Mass is ur size. And lastly Newtons is what unit its in. Mars: 45.24 lbs -An interaction which tends to change the motion of an object. Describing mass, weight, and Newtons to a five year old. Worked out Problem If you are a 125 pounds on earth, you will be 275.5778277311 in Kilograms. The force that attracts a body toward the center of the earth, or toward any other physical body having mass. Fun facts about gravity: The equation of force: F=MA Force= ma 180x5=900 Take things with different weight and sizes and drop them from a certian point. Law of Falling bodies: Force= 900 Newtons To leave Earth’s gravitational pull behind, an object must travel 7 miles a second. According to scientists, people in space can lose up to 1% of their bone mass. Weight on different planets A stone who's weight is twice as much will fall faster than a smaller stone because of air resistance. Moon: 19.92lbs What is the mass of an object on earth? Graphs Mass=180lbs W=MG (Weight = Mass x Gravity What are the units for weight? He figured out this law when he dropped two balls off of the Leaning tower of Pisa. Gravity Presentation The SI unit for weight is Newtons. Acceleration vs. Time- It would be a straight horizontal line. How are weight and mass different? What is Gravity?? lab Acceleration= 5mph The speed of of gravity is 9.8 m/s Tommy weighed 180lbs and was accelerating at a speed of 5 miles p/h down a hill. What was the force when he hit the tree at the bottom of the hill. Velocity vs. Time- It would look like a diagnol line on the graph. What is force??? Distance vs. Time- It would be exponential. It would be a curve. Difference between mass, weight, and newtons: Newton is a unit in which we measure force, mass is the amount of matter something contains, and weight is the measure of pull on gravity. Examples that show the theory is true: Earth: 120lb (force=mass x acceleration) Sun: 3248.64 bs Formula for weight: