Force on a Spring
When a force acts on a spring it is stretched or compressed, its length will changes by an amount e from its original length.
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fps
Kinetic Energy
In physics, the kinetic energy (KE) of an object is the energy that it has due to its motion. It is defined as the work needed for an object of a known mass to accelerate to a given velocity.
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Forces and Work Done
The unit for work done is the joule (J), or Newton meter (N-m). One joule is equal to the amount of work that is done when 1 N of force moves an object over a distance of 1 m.
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Magnification
The magnification can be calculated if you know the actual size of the object and its image size.
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Pressure in a Gas
Gas Pressure is created when gas particles collide with the walls of their container. The more often the particles collide with the walls, and the faster they are moving, the greater the pressure.
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Weight on the Moon
Weight is the force acting on an object due to gravity. The weight of an object is defined as the force of gravity on the object and can be calculated as the mass times the acceleration due to gravity.
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