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4
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anything that helps with work is one of these
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6
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a see saw or balanced plank is one of these
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8
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a wheel barrow is one of these
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9
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a humans arm is one of these
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10
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a hinge is one of these
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11
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cars have these
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1
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a axe can be one of these
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2
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a rope on a branch is one of these
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3
|
a hand is on this
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5
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a plank can be one of these
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6
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a pop cap is one of these
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7
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this is made by moving an object a distance
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12
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A Stick under a rock can be one of these
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