Welcome to Introduction to Engineering. This is your first video tutorial! Today, we are talking about measurement. We'll need to know some of this stuff for our first project. Get your ruler ready!

The pressure that blood exerts against the walls of blood vessels.
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A measurement related to the average kinetic energy of the particles contained in a system.
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The average value of a set of data, calculated by adding all the values and dividing by the number of values.
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An electronic device that produces radio waves with an antenna, usually for communication or measurement purposes.
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An accurate measurement is one that is close to the true value, though it may show a spread of values around the correct value when the measurement is repeated.
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In measurement and in display systems, resolution is a measure of how much detail can be detected or shown.
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How repeatable a measurement is.
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Everything that exists. All physical matter and energy and the contents of the space between galaxies.
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A 'push' or a 'pull' on an object.
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SI is the International System of Units.
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The rate at which a repeating event occurs, usually measured in counts per unit time.
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A very small unit of length equivalent to one ten-millionth of a millimetre, or 10^-10m.
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The planet we live on is the third of the four rocky planets in our Solar System.
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The name that we give to our own Galaxy.
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The total mass of living organisms in an area or ecosystem.
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A compound which dissolves in water to form a solution with a pH of less than 7.
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When we look at distant stars, we are looking back in time. What is a light year, how is it measured and why do we measure distance in terms of time?



Physics - Universe - Learni

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Light travels...

Electromagnetic radiation with a slightly longer wavelength than visible light, between about 700 and 1050 nanometres.
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A temperature scale, used largely in the USA, on which water freezes at 32 degrees and water boils at 212 degrees.
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The measure of a liquid's resistance to flow.
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The rate of change of velocity with time, measured in metres per second squared.
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The distance travelled by light in a vacuum in a year, equal to about 9.5 trillion kilometres.
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A quantity that has magnitude, or size, but not direction.
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