Master this deck with 20 terms through effective study methods.
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A dry cell is an electrochemical cell that uses a paste electrolyte, preventing leakage. An example of a dry cell is an alkaline battery.
A wet cell is an electrochemical cell that contains a liquid electrolyte, allowing for continuous chemical reactions. Car batteries are a common example of wet cells.
Primary cells are non-rechargeable batteries designed for single use, such as alkaline batteries. Secondary cells are rechargeable and can be used multiple times, like lithium-ion and lead-acid batteries.
Electrolysis is a process that uses electricity to drive non-spontaneous chemical reactions. It is commonly used for applications like splitting water into hydrogen and oxygen.
Electroplating is the process of coating a metal with another metal using electrolysis. This technique is often used to enhance the appearance and corrosion resistance of objects.
The basic components of an electrochemical cell include an electrolyte, electrodes, and ion flow. The electrolyte conducts electricity, while electrodes facilitate oxidation and reduction reactions.
The anode is the electrode where oxidation occurs, meaning it loses electrons. In a dry cell, the anode is typically made of zinc.
The cathode is the electrode where reduction occurs, meaning it gains electrons. In a dry cell, the cathode is usually a carbon rod in a manganese dioxide mixture.
In a series connection, batteries are arranged to increase voltage, while in a parallel connection, batteries are arranged to increase battery life. Series connections provide higher voltage output.
Electrical current is the flow of electric charge, typically electrons, through a conductor. It is analogous to the flow of water through a pipe.
A circuit breaker is a safety device that automatically turns off power when too much current flows through a circuit. Unlike fuses, circuit breakers can be reset after tripping.
A fuse is a safety device that contains a thin metal wire that melts when too much current flows, stopping the circuit. Once blown, a fuse must be replaced.
Static electricity is the buildup of electric charge on the surface of an object, occurring when electrons move from one object to another. An example is rubbing a balloon on hair.
The laws of electrical charges state that like charges repel each other, opposite charges attract, and neutral objects are attracted to charged objects.
A Van de Graaff generator is a machine that builds up static electricity using a moving belt to transfer electrons to a metal dome. It is often used for demonstrations and research.
An electrical load is any device that uses electrical energy to perform work, converting it into other forms of energy such as light, heat, or mechanical energy.
Voltage, or potential difference, is the force that pushes electrons through a circuit. It is measured in volts (V) and is essential for the flow of electrical current.
An electrolyte is a substance that contains free ions and conducts electricity. It can be in liquid or paste form, depending on the type of electrochemical cell.
A conductor is a material that allows electricity to flow easily through it. Metals like copper, silver, and gold are excellent conductors due to their free-moving electrons.
Electrodes are conductive materials that allow electrons to enter or leave the cell. They play a crucial role in facilitating oxidation and reduction reactions during the electrochemical process.