The SI unit of energy is joule 'J'
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The basic unit of energy that scientists use is the joule (J). It is equivalent to the energy transferred when a one-newton force acts over one meter distance.
The two basic units of energy scientists use are joules and calories. Joules are the standard unit of energy in the International System of Units (SI), while calories are commonly used in nutrition to measure the energy content of food.
Scientists use the metric unit of measurement called grams (g) to weigh things.
An electron-volt (eV) is a unit of energy used in physics. It is the amount of energy gained by an electron when it moves through an electric potential difference of one volt. Scientists use electron-volts as an alternate unit for measuring energy in subatomic particle interactions and in the field of particle physics.
The basic unit of food used for energy and growth is a calorie. Calories are a measurement of energy derived from the food we eat, which our bodies use for various functions, including providing energy for daily activities and supporting growth and repair of tissues.
Scientists use a unit called atomic mass unit (amu) to measure the mass of particles within an atom. This unit is based on the mass of a proton or neutron, and it helps scientists compare the mass of different atoms accurately.