Definitions - Mechanics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | A quantity which has both magnitude and direction.
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| show | A quantity which has magnitude only.
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| show | A measure of the separation between two points.
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| show | The separation between two points in a given direction.
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| Speed | show 🗑
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| Velocity | show 🗑
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| show | The rate of change of velocity.
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| show | v = u + at, s = ut +1/2at², v² = u² + 2as
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| Momentum | show 🗑
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| The principle of the conservation of momentum | show 🗑
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| Force | show 🗑
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| Newton | show 🗑
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| show | The force with which a force is attracted to a planet W = mg
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| show | The force that opposes motion between two surfaces in contact
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| show | A body remains at rest or in uniform motion unless acted upon by a resultant force.
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| Newtons 2nd Law of motion | show 🗑
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| show | For every action there is an equal and opposite reaction.
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| show | When a force causes a body to be displaced W =Fd
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| Energy | show 🗑
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| show | The energy that a body has due to it's position or state P.E = mgh
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| show | The energy a body has due to it's motion K.E = 1/2mv²
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| 1 Joule | show 🗑
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| The principle of conservation of energy | show 🗑
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| Power | show 🗑
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| show | 1 watt of power is equal to doing 1 joule of work per second
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| A renewable source of energy | show 🗑
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| The efficiency of a machine | show 🗑
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| Lever | show 🗑
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| The centre of gravity | show 🗑
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| show | The force applied multiplied by the perpendicular distance from the fulcrum M = Fd
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| Conditions for equilibrium | show 🗑
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| show | Two parallel forces that act in opposite directions. The moment of a couple is the magnitude of one force multiplied by the perpendicular distance between them
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| show | The extension of an elastic body is directly proportional to the force extending it
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| show | Motion where an objects acceleration is directly proprtional to it's displacement from a mean position and is always directed towards it
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| Newton's law of universal gravitation | show 🗑
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| Centripetal Force | show 🗑
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| show | The angle, in radians, swept out per second
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| Periodic time | show 🗑
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| Kepler's 3rd Law | show 🗑
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| show | The mass per unit volume of a substance p = m/v
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| show | The force per unit area P = F/A
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| show | When a body is partially or fully immersed in a fluid, it experiences an upthrust which is equal to the weight of the liquid displaced
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| Law of flotation | show 🗑
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| Boyle's Law | show 🗑
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
neilkelly
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