IB Physics Sub-topic B5 Definitions

This device measures the current of the circuit over the portion it is in series with

It is one or more connected cells converting chemical energy into electrical energy

It is the amount of electrical energy it can produce in its lifetime

It is the path a current follows

It is a device that houses an internal chemical reaction that converts chemical energy into electrical energy

It is the total potential difference per unit charge, including the voltage to power the cell and external components

It is an ammeter with zero resistance

It is a voltmeter with infinite resistance

It is the resistance inside the cell

This device's resistance is dependent on the amount of light shining on it; when light shines on it, its resistance decreases

It is an ammeter with a constant but non-zero resistance

It is a voltmeter with a constant but finite resistance

It is a device that does not remain at a constant temperature, does not have a current proportaiontl to voltage, and thus a changing resistance

It is a device that remains at a constant temperature, has a current proportional to voltage, and thus a constant resistance

It is a circuit with devices aligned in a branched loop

It is a cell with 100% efficiency in the conversion of chemical to electrical energy

This is a device used in circuits to measure the voltage across a resistor

This device is used as a potential divider, but its resistance must be significantly smaller than any resistor's

It is the energy difference per unit time or energy difference per charge flow

It is a cell with a non-reversible internal reaction, meaning it is not rechargeable

It is the ratio of potential difference to current

It is the amount of resistance a material has based on its length and cross-sectional area

It is a device with a constant resistance

It is a cell with an internal reaction reversible with electricity, meaning it is rechargeable

It is a circuit with devices aligned in one continuous loop

This device breaks the circuit when it is open, and thus no current runs. When it is closed, it completes the circuit and allows current to run

It is the maximum voltage a cell can produce

This device’s resistance is dependent on its temperature. Most types decrease in resistance when their temperature increases

This device’s resistance can be manually changed

This device measures the voltage over the portion of a circuit it is parallel with