Lava that is still inside a volcano is called magma. Lava can reach temperatures of 1200 degrees celsius, which is too hot for scientists to use a normal thermometer (the kind you use at home or in school). Instead, scientists use an instrument called a thermocouple.
This is made of two wires of different types of metal which are joined to an electrical source (usually a battery). When the electric current passes through point where the two wires are joined, the resistance of the current can be measured. This electrical resistance is very sensitive to the temperature, and so this can be measured using an ammeter and converted to a temperature reading.The type of thermocouple used for measuring lava can work up to temperatures of 1600 degrees Celsius, as the melting point of the two wires, and the ceramic insulation and stainless steel protecting the wires are all higher than the temperature of lava.Another way of measuring the temperature is to do it from a short distance (remotely) using an instrument called an optical pyrometer. This is a bit like a telescope with filtered lenses. A scientist will point this at the lava and adjust an electrical filament (like in an old fashioned light bulb) until the two colours match. They can then work out how hot the lava isNo, nothing is used to measure the Richter scale. The Richter scale is used to measure the intensity of earthquakes.The Volcanic Explosivity Index (VEI) is used to provide a relative measure of the explosiveness of volcanic eruptions.
A Pareto chart is the tool used in the DMAIC (define, measure, analyze, improve, and control) measure phase.
The tool that a person would use to measure out a pound is called a scale. A scale can be used to weigh people as well. Pounds are a form of measure used on the Imperial system.
A graduated cylinder
Scale and inch-tape can be used to measure desk. It is 1-2 m long.
No, nothing is used to measure the Richter scale. The Richter scale is used to measure the intensity of earthquakes.The Volcanic Explosivity Index (VEI) is used to provide a relative measure of the explosiveness of volcanic eruptions.
A thermometer is typically used to measure heat energy in the atmosphere. It works by detecting temperature changes in the air, which can give an indication of the amount of heat energy present in the atmosphere at a given time.
Why weather tool is used to measure wind direction
A Pareto chart is the tool used in the DMAIC (define, measure, analyze, improve, and control) measure phase.
A Pareto chart is the tool used in the DMAIC (define, measure, analyze, improve, and control) measure phase.
Tape measure
This depends on what you are measuring. A tool that can be used is a tape measure.
The Richter scale is used to rate the magnitude of an earthquake -- the amount of energy it released
The answer depends on what characteristic the tool is used to measure.
A Pareto chart is the tool used in the DMAIC (define, measure, analyze, improve, and control) measure phase.
scale
the tool used to measure a area is a tape measure