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Physics - Powering our future (Energy (Potential, Kinetic, Nuclear,…
Physics - Powering our future
Non- renewable energy :
Petroleum products
Hydrocarbon gas liquids
Natural gas
Coal
Nuclear energy
Renewable energy
Solar
Hydro
Wind
Biomass
Electricity
Electric power
rate, per unit time, at which electrical energy is transferred by an electric circuit
Voltage
Potential difference
Voltmeter
Volts (V)
Current
Rate of flow of electric charge past a point
Ammeter
Amperes (A)
Circuit
network consisting of a closed loop, giving a return path for the current
Parallel
Series
Resistance
Restriction of the electron flow, opposition to the flow of charge
Units: Ohm
Resistor
Charge
Positive
Proton
Negative
Electron
Neutral
Neutron
Energy
Potential
Kinetic
Nuclear
Gravitational
Mechanical
Thermal
Motion
Sounds
Electrical
Energy efficiency
How much of the total energy supplied is useful energy.
Efficiency: Useful energy/ total energy input x100
Forumula
R=V/I R- Resistance V- Voltage I- Current
Experiment
As the length of wire increase, the current decrease
As the length of wire increases, the voltage decreases