M-2 - University of Iowa Physics
... 2. Non‐contact forces are forces exerted by one body on another even though the bodies are not in physical (touching) contact. The force of gravity of the earth acts on every object near it even if the object is not on the ground. 3. Mass (m) is the measure of the inertia of an object; weight ( ...
... 2. Non‐contact forces are forces exerted by one body on another even though the bodies are not in physical (touching) contact. The force of gravity of the earth acts on every object near it even if the object is not on the ground. 3. Mass (m) is the measure of the inertia of an object; weight ( ...
Science: Gravity
... What is Gravity? Gravity is a Force Field surrounding the Earth. The Force Field pulls anything that comes in orbit of the Earth towards the Earth. Sometimes an Asteroid gets pulled into the Force Field and makes huge craters in the Earths crust. Other times the Asteroid is seen when it is really t ...
... What is Gravity? Gravity is a Force Field surrounding the Earth. The Force Field pulls anything that comes in orbit of the Earth towards the Earth. Sometimes an Asteroid gets pulled into the Force Field and makes huge craters in the Earths crust. Other times the Asteroid is seen when it is really t ...
Gravity
... comes from traction (friction of tires on road) • If friction is too small, car will move in a straight line (off the road) • Anything that travels in a circle is doing so from centripetal force, accelerating it toward the ...
... comes from traction (friction of tires on road) • If friction is too small, car will move in a straight line (off the road) • Anything that travels in a circle is doing so from centripetal force, accelerating it toward the ...
Variation of g (acceleration due to gravity) - cal
... To find the acceleration due to gravity at sea level you can plug in values of G and the mass (in kilograms) and radius (in meters) of the Earth to obtain the calculated value of g: g = GM/r2 This agrees approximately with the measured value of g. The difference may be attributed to several factors: ...
... To find the acceleration due to gravity at sea level you can plug in values of G and the mass (in kilograms) and radius (in meters) of the Earth to obtain the calculated value of g: g = GM/r2 This agrees approximately with the measured value of g. The difference may be attributed to several factors: ...
File
... reference can force you to invoke “fictitious-forces”, really just unexpected forces, i.e., artifacts from doing physics in that frame. Since these fictitious-forces are invoked to explain what is actually an acceleration of the entire reference frame, they are necessarily proportional to mass. Why? ...
... reference can force you to invoke “fictitious-forces”, really just unexpected forces, i.e., artifacts from doing physics in that frame. Since these fictitious-forces are invoked to explain what is actually an acceleration of the entire reference frame, they are necessarily proportional to mass. Why? ...
Gravity PowerPoint Notes
... Why do Earth and the moon remain in their orbits? • Inertia and gravity combine to keep Earth in orbit around the sun and the moon in orbit around the Earth. • A combination of gravity and inertia keeps the moon in orbit around the Earth. If there were no gravity, inertia would cause the moon to tr ...
... Why do Earth and the moon remain in their orbits? • Inertia and gravity combine to keep Earth in orbit around the sun and the moon in orbit around the Earth. • A combination of gravity and inertia keeps the moon in orbit around the Earth. If there were no gravity, inertia would cause the moon to tr ...
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.