Physics
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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| An action that makes an object either move or change shape. (EX: a push, a pull, a twist.) | Force
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| The sum of all forces acting on an object | Net Force
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| A force that changes an object's motion or causes it to accelerate. | Unbalanced Force
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| Forces that are equal & acting in opposite directions. Since the net force is zero, NO MOVEMENT OCCURS! | Balanced Force
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| The transfer of energy as the result of motion. | Work
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| (Note: Work is measured in Joules, Forces in Networks & Distance in Meters!) - This means that something has to MOVE in order for "work" to be done. | Work = Force x Distance
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| Change's the amount and/or direction of the force that must be exerted to for work. You get the same work done with less force- thus it INCREASE EFFICIENCY! | Machine
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| A machine that consists of only one part | Simple Machine
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| A bar that is free to pivot about a fixed point called a fulcrum. The longer the effort arm the less required to move an object. (EX: hammer, seesaw, wheelbarrow.) | Lever
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| A slanted surface used to raise objects. It decreases the force required to raise an object by increasing the distance. (EX: a loading ramp.) | Inclined Plane
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| An arrangement of one or more wheels & rope (EX: the string on the flag pole.) | Pulley
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| A pulley that stays in place & turns as the cord moves over it. This pulley only gives a directional advantage- in other words, it only changes the direction of the force. it does NOT change the amount of the force or the distance. | Fixed Pulley
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| A pulley that is able to move with the load being raised. This pulley gives a mechanical advantage- in other words, it decreases the force by increasing the distance. (EX: amount of rope you pull!) | Moveable Pulley
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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:
brooke.salyers
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