G-force
G-force
G-force (pronounced: /ˈdʒiː fɔːrs/), also known as gravitational force, is a measurement of the type of acceleration that causes a perception of weight. Despite the name, it is incorrect to consider G-force a fundamental force, as "G-force" is a type of acceleration that can be measured with an accelerometer.
Etymology
The term "G-force" is a shortening of "gravitational force", with the "G" standing for "gravitation". The term was first used in the context of space flight, where it is important to consider the forces acting on the human body during acceleration.
Definition
In physics, G-force is a measurement of acceleration. It is not a force but a measure of force per unit mass. In the case of G-force, the force is the weight of the object, and the mass is the mass of the object. The unit of G-force is the same as acceleration, which in the International System of Units (SI) is m/s².
Related Terms
- Acceleration: The rate of change of velocity per unit of time.
- Gravity: The force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
- Weight: The force exerted on the mass of a body by a gravitational field
- Mass: A property of a physical body which determines the body's resistance to being accelerated by a force and the strength of its mutual gravitational attraction with other bodies.
Effects on the Human Body
The human body can tolerate relatively high G-forces, but only for a short period of time. Prolonged exposure to high G-forces can lead to a number of health issues, including loss of consciousness, damage to internal organs, and even death. The body's tolerance to G-forces depends on many factors, including the direction of the force, the duration of exposure, and the individual's physical condition.
See Also
External links
- Medical encyclopedia article on G-force
- Wikipedia's article - G-force
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