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Definitions for #6
Physical Science equations for chapter 6
Term | Definition |
---|---|
Static Electricity | Static electricity is the accumulation of excess electric charge on an object. |
Law of conservation of charge | The law of conservation of charge states that charge can be transferred from object to object, but it cannot be created or destroyed. |
Electric field | An electric field surrounds every electric charge and exerts the force that causes other electric charges to be attracted or repelled. |
Conductor | A conductor is a material through which electrons move easily. |
Insulator | An insulator is a material in which electrons are not able to move easily. |
Charging by contact | Charging by contact is the process of transferring charge by touching or rubbing. |
Charging by induction | The rearrangement of electrons on a neutral object caused by a nearby charged object is called charging by induction. |
Electroscope | An electroscope is a device that can detect electric charge. |
Voltage difference | A voltage difference is related to the force that causes electric charge to flow, voltage difference is measured in volts (V). |
Electric circuit | An electric circuit is a closed path that electric current follows. |
Resistance | Resistance, which is measured in ohms (Ω), is the tendency for a material to resist the flow of electrons and to resist the conversion of electrical energy into other forms of energy, such as thermal energy. |
Ohm's law | According to ohm's law, the current in a circuit equals the voltage difference divided by the resistance. |
Series circuit | A series circuit is an electric current with only one branch. |
Parallel circuit | Parallel circuits contain two or more branches for current. |
Electrical power | Electrical power is the rate at which electrical energy is converted to another form of energy. The equation for electrical power is: Electrical power (P) (watts)=Current (I) (amperes) x Voltage difference (V) (volts). |