Temperature Measurement and Scales Quiz

A measure of the average kinetic energy of the particles within a substance. It determines the relative hotness or coldness of a medium and is often measured in degrees.

The total amount of thermal energy contained within a substance. It depends on the temperature, mass, and specific heat capacity of the substance.

A scale that measures temperature using the freezing point of a concentrated salt solution as 0°F and the internal temperature of oxen as 100°F.

A scale that measures temperature based on the freezing point of pure water as 0°C and the boiling point of pure water as 100°C.

The transfer of thermal energy from one substance to another, resulting in a change in temperature.

The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

The change in size of a substance due to a change in temperature.

A measure of how quickly a substance changes temperature in response to a change in heat.

The change in linear dimension of a material due to temperature variations.

Heat transfer through direct contact between molecules.

The change in volume of a material due to temperature variations.

Heat transfer through the movement of fluids.

A measurement of how much energy is transferred by radiation.

A device used to measure temperature.

The relationship between pressure, volume, and temperature in a gas.

A method for measuring temperature based on a substance's change in response to temperature changes.

The transfer of heat through a material due to the vibration and energy transfer between molecules. Heat flows from hotter to colder regions.

The transfer of heat through the movement of fluids (liquids and gases). Heat is carried by the moving particles of the fluid.

The transfer of heat through electromagnetic waves. It can travel through space or a vacuum.

The change in the length of a material due to a change in temperature.

The change in the volume of a material due to a change in temperature.

The ability of a material to transfer heat. Materials with high thermal conductivity transfer heat quickly.

A thermometer that uses a liquid, such as mercury or alcohol, which expands and contracts with temperature changes, thus indicating the temperature on a calibrated scale.

A thermometer that uses a sensor, often a thermistor or RTD, which changes its electrical resistance with temperature. This change is converted into a digital reading on the thermometer's display.

A thermometer that measures temperature by detecting infrared radiation (heat) emitted by an object. The emitted heat is focused onto a detector, generating an electrical signal that is then displayed as temperature.

A thermometer that utilizes a thermocouple, consisting of two different metals joined at one end. Heating this junction produces a voltage that can be correlated to temperature. The voltage difference is measured and used to calculate the temperature.

Thermometers that use liquids similar to mercury but are considered non-toxic. These liquids expand and contract with temperature changes, indicating the temperature on a calibrated scale.

A property of a substance that describes how much its volume changes for every degree Celsius (or Fahrenheit) change in temperature.

The range within which a thermometer can accurately measure temperature. Different liquids in glass thermometers have different operating ranges.

A characteristic of some liquids where they do not easily wet or spread on a surface, like in a thermometer tube.

These thermistors exhibit a decrease in resistance as temperature increases.

These thermistors exhibit an increase in resistance as temperature increases.

NTC thermistors are used to sense or limit temperature changes. They are commonly found in applications like temperature sensors, protection circuits, and inrush current limiters.

PTC thermistors are often used in applications where overcurrent protection is needed, like resettable fuses.

They are formed by joining two different metals, creating a junction. When heated or cooled, a voltage is generated, which can be measured and used to determine the temperature.

The voltage generated by a thermocouple is directly related to the temperature difference between the measuring junction and a reference junction.

Thermocouples can measure a broad range of temperatures, from very low to very high.

The potential difference generated by a thermocouple due to a temperature difference is called the Seebeck Voltage.

Semiconductor temperature sensors are electronic devices that convert temperature into an electrical signal, typically voltage or resistance. They are widely used in various electronic systems to monitor and control temperature.

Semiconductor sensors are often integrated into complex systems, like microcontrollers or ICs, making them easy to incorporate into electronic devices.

Semiconductor temperature sensors have a limited operating range compared to other types, such as thermocouples or RTDs. They typically work well from around -50°C to +150°C, not suitable for extremely high temperatures.

Semiconductor sensors can provide accurate temperature readings, but generally not as high as thermocouples or RTDs, especially in extreme conditions.

The electrical properties of semiconductor materials can be influenced by factors like supply voltage and noise in the circuit, affecting the accuracy of the temperature measurement.

Semiconductor temperature sensors are widely used in smartphones, laptops, refrigerators, engine control systems, cabin temperature regulation, HVAC systems, patient temperature monitoring, and battery management systems.

LM35, TMP36, DS18B20, and AD22100 are common examples of semiconductor temperature sensors.

Semiconductor temperature sensors are versatile, inexpensive, and compact, making them ideal for a wide range of applications, particularly in electronic systems.