Force and motion
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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| When two forces act in opposite directions on an object what is the net force equal to? | The difference between the two force (subtract)
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| If you pull a rope with 20N to the left and 10N to the right, which way will the rope go? | left
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| What is the word that describes the tendency of objects to resist any change in their motion? | inertia
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| A student places a ball on the ground and kicks it. The ball moves along the ground. Why does the ball move? | The kick applies a force to the ball.
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| Juan is moving slowly on his rollerblades. Christina pushes him. What happens when Christina pushes Juan from behind? | Juan will begin to move at a faster speed.
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| Why is it much harder to start pushing a cart full of books than it is to start pushing an empty cart? | The cart with the books has more mass and more inertia.
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| In order for a glider to fly level, its weight must be opposed by lift. This is an example of | balanced forces
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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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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:
Alan Johns
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