Electricity
A form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.
What is electricity?
A fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. allows the calculation of properties and behavior of physical systems. It is typically applied to microscopic systems: molecules, atoms and sub-atomic particles. It has been demonstrated to hold for complex molecules with thousands of atoms, but its application to human beings raises philosophical problems, and its application to the universe as a whole remains speculative. Its predictions have been verified experimentally to an extremely high degree of accuracy.
Any material capable of being magnetized.
What is a ferromagnetic material?
Any interaction that, when unopposed, will change the motion of an object.
What is a force?
A measure of the force amplification achieved by using a tool, mechanical device or machine system.
What is mechanical advantage?
device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.
What is a transformer?
The weakest of the four fundamental forces of physics. As a consequence, it has no significant influence at the level of subatomic particles. In contrast, it is the dominant interaction at the macroscopic scale, and is the cause of the formation, shape and trajectory of astronomical bodies.
Gravity
a coil wound into a tightly packed helix whose length is substantially greater than its diameter, which produces a uniform magnetic field in a volume of space when an electric current is passed through it.
What is a solenoid?
The highest velocity attainable by an object as it falls through air. It occurs once the sum of the air resistance force and buoyancy equals the downward force of weight acting on the object.
What is terminal velocity?
The mechanical advantage of a device with the assumption that its components do not flex, there is no friction, and there is no wear. It is calculated using the physical dimensions of the device and defines the maximum performance the device can achieve.
What is ideal mechanical advantage?
A region in space in which which each point is affected by a force.
What is a field?
Holds most ordinary matter together because it confines quarks into hadron particles such as the proton and neutron. In addition, the it binds these neutrons and protons to create atomic nuclei.
Strong Nuclear Force
a machine that converts electrical energy into mechanical energy.
What is a motor?
The force on the object due to gravity.
What is weight?
the energy transferred to or from an object via the application of force along a displacement.
What is work?
The pressure from an electrical circuit's power source that pushes charged electrons through a conducting loop, enabling them to do work.
What is voltage?
A type of physical interaction that occurs between electrically charged particles. It plays a major role in determining the internal properties of most objects encountered in daily life. It attracts electrons to atomic nuclei and is responsible for the chemical bonds between atoms which create molecules, and intermolecular forces. It governs all chemical processes, which arise from interactions between the electrons of neighboring atoms.
The electromagnetic force
A machine that converts mechanical energy into electric energy.
What is a generator?
The unit for work.
What is a joule?
What is the output force of an incline plane used to lift a 61 kg refrigerator?
61 kg x 9.8 m/s/s = 598 N
the release and transmission of electricity in an applied electric field through a medium such as a gas.
What is an electric discharge?
The mechanism of interaction between subatomic particles that is responsible for the radioactive decay of atoms. Its range is limited to subatomic distances, and is less than the diameter of a proton. It is the only interaction that can change the flavor of quarks (i.e., of changing one type of quark into another).
Weak Nuclear Force
The production of electricity across an electrical conductor in a changing magnetic field.
What is induction?
The force that causes a 1 kg mass to accelerate at a rate of 1 meter per second per second.
What is a Newton?
What length of ramp would have to be used to raise a 610 N box to a height of 1.1 m using a force of 180 N?
3.73 m