Gravity - ScienceRocks8
... Objects falling through air experience a type of fluid friction called air resistance Friction is a force in the opposite direction of motion so air resistance is an upward force Falling objects with greater surface area experience more air resistance In a vacuum there is no air, all objects fall at ...
... Objects falling through air experience a type of fluid friction called air resistance Friction is a force in the opposite direction of motion so air resistance is an upward force Falling objects with greater surface area experience more air resistance In a vacuum there is no air, all objects fall at ...
Force
... II. Combining Forces A. Net force is the overall force acting on an object after all force are combined. B. Forces acting in the same direction are added together. ...
... II. Combining Forces A. Net force is the overall force acting on an object after all force are combined. B. Forces acting in the same direction are added together. ...
L3N - University of Iowa Physics
... planes (slide # 19). He realized that an object sliding down an inclined plane was still falling under the influence of gravity, but the effect of gravity would be reduced depending on the angle of the plane relative to the horizontal. (To reduce the effect of friction between the obj ...
... planes (slide # 19). He realized that an object sliding down an inclined plane was still falling under the influence of gravity, but the effect of gravity would be reduced depending on the angle of the plane relative to the horizontal. (To reduce the effect of friction between the obj ...
Developing the Science of Astronomy
... 1) Mass is often defined in elementary school as “the amount of space an object takes up”. Why is this not correct? 2) Would your mass be different if you were on the moon right now? 3) What would a 75 kg person weigh on Earth? What would this person weigh on Mars where the acceleration due to gravi ...
... 1) Mass is often defined in elementary school as “the amount of space an object takes up”. Why is this not correct? 2) Would your mass be different if you were on the moon right now? 3) What would a 75 kg person weigh on Earth? What would this person weigh on Mars where the acceleration due to gravi ...
Artificial gravity
Artificial gravity is the theoretical increase or decrease of apparent gravity (g-force) by artificial means, particularly in space, but also on Earth. It can be practically achieved by the use of different forces, particularly the centripetal force and linear acceleration.The creation of artificial gravity is considered desirable for long-term space travel or habitation, for ease of mobility, for in-space fluid management, and to avoid the adverse long-term health effects of weightlessness.A number of methods for generating artificial gravity have been proposed, as well as an even larger number of science fiction approaches using both real and fictitious forces. Practical outer space applications of artificial gravity for humans have not yet been built and flown, principally due to the large size of the spacecraft required to produce centripetal acceleration.