Examples of gravity in the following topics:


 Galileo then hypothesized that there is an upward force exerted by air in addition to the downward force of gravity.
 If air resistance and friction are negligible, then in a given location (because gravity changes with location), all objects fall toward the center of Earth with the same constant acceleration, independent of their mass, that constant acceleration is gravity.
 The acceleration of freefalling objects is referred to as the acceleration due to gravity g.
 As we said earlier, gravity varies depending on location and altitude on Earth (or any other planet), but the average acceleration due to gravity on Earth is 9.8 m/s2.
 where v = velocity, g = gravity, t = time and y = vertical displacement.


 Weight is taken as the force on an object due to gravity, and is different than the mass of an object.
 It is considered as the force on an object due to gravity.
 The strength of gravity varies very little over the surface of the Earth.
 In fact, the greatest percent difference in the value of the acceleration due to gravity on Earth is 0.5%.
 Infer what factors other than gravity will contribute to the apparent weight of an object

 Gravitational energy is the potential energy associated with gravitational force, such as elevating objects against the Earth's gravity.
 Gravitational energy is the potential energy associated with gravitational force, as work is required to elevate objects against Earth's gravity.
 Note that "height" in the common sense of the term cannot be used for gravitational potential energy calculations when gravity is not assumed to be a constant.
 Near the surface of the Earth, for example, we assume that the acceleration due to gravity is a constant g = 9.8 m/s2 ("standard gravity").
 Thus, when accounting only for mass, gravity, and altitude, the equation is:



 Pressure within static fluids depends on the properties of the fluid, the acceleration due to gravity, and the depth within the fluid.
 The pressure exerted by a static liquid depends only on the depth, density of the liquid, and the acceleration due to gravity.
 gives the expression for pressure as a function of depth within an incompressible, static liquid as well as the derivation of this equation from the definition of pressure as a measure of energy per unit volume (ρ is the density of the gas, g is the acceleration due to gravity, and h is the depth within the liquid).
 For many liquids, the density can be assumed to be nearly constant throughout the volume of the liquid and, for virtually all practical applications, so can the acceleration due to gravity (g = 9.81 m/s2).
 This equation gives the expression for pressure as a function of depth within an incompressible, static liquid as well as the derivation of this equation from the definition of pressure as a measure of energy per unit volume (ρ is the density of the gas, g is the acceleration due to gravity, and h is the depth within the liquid).

 When the elevator goes up, the normal force is actually greater than the force due to gravity.
 The first is the force of gravity on the person, which does not change.
 Since acceleration is positive, the normal force must actually be greater than the force due to gravity (the weight of the person).
