Quick Introduction
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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| Collision – elastic | a collision that conserves kinetic energy and momentum
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| Collision – inelastic | a collision the some kinetic energy is changed into heat, light, sound, deformations...; momentum still conserved
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| Conservation of p | the sum of all momenta of the particles of a system is unchanged after an event (explosion or collision)
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| Energy | the ability to make changes
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| Energy | a condition of an object or system of objects; scalar quantities (no direction); unit in Joules; 1 J = 1 N-m = 1 kg-m2/sec2
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| Energy – gravitational | gravitational potential energy is energy stored in an object-earth system because work was done “against” gravity
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| Energy – potential | “Stored” energy; energy created because a force “acted” through a distance; stored in a system of objects
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| Energy – types | kinetic, gravitational potential, heat, light, sound, electromagnetic radiation, high speed particles, etc.
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| Energy – Work | a transformation mechanism for changing one mechanical energy into another (kinetic to potential) or to heat
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| Energy – Work theorem | The change in kinetic energy is due to the work done on a moving object
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| Impulse | change in momentum (change in p)
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| Impulse – due to force | change in momentum due to a force “acting” for a time period
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| Momentum | “quantity of motion”; vector quantity; one of the properties of matter
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| Newton’s 3rd Law | the change in p of one object during an interaction equals the change in p of the other object except in opposite direction
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| Power | Rate of work being done; units are “watts” 1 watt = 1 Joule/sec = 1 kg-m^2/sec^2
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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.
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:
brownglarry
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