ILS Ch 12
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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| ILS Ch 12 Review |
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| Newton’s Laws |
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| First | object in motion stays in motion, at rest stays at rest
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| Second | f = m X acc (acc= force/mass)
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| Third | action reaction forces
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| Force | push or pull
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| Equation | force= mass X acc
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| Label | Newton (1 kg m/s/s)
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| Momentum |
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| Equation | Mo= mass X vel
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| Tides | caused by gravity from the moon
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| Universal Forces |
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| Gravitational | force pulling down, effective over long distances, depends on mass and distance
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| Electromagnetic | repulsion of similar charges, opp attract
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| Strong nuclear | Protons and neutrons
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| Weak nuclear | nuclear decay
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| Projectile Motion | initial forward velocity and pull of gravity
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| Ex: diagram |
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| Friction | force that opposes motion
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| Types | fluid (fish), sliding, static, rolling
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| Ex: |
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| Strengths | static is stronger than sliding
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| Law of Conservation Momentum | momentum is conserved when objects collide in a closed system, loss of momentum by one object equals gain of momentum by another
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| Weight | W=M X Acc due to gravity, less gravity = less weight
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| Inertia | resistance of changes in motion
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| Air Resistance | force pushing up on a falling object, increases with surface area, drag force
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| Terminal Velocity | net force = zero
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| Balance Forces | net force = zero
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| Net Forces | sum of all forces acting on an object
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| Unbalanced Forces | causes acceleration
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| Centripetal Force |
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| Satellites | acts as unbalanced force, changes direction, center directed force
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| Gravity | Mass and distance
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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.
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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:
evroman
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