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Foam and wood float and would therefore make poor boat anchors. Glass is not strong enough to be used as a boat anchor.
What is the point at which the lever pivots?
A farmer is attempting to pull a log with a line of rope attached to a tractor. Where should she watch for breakage on the rope?
Nearest to the tractor
15 J of work were expended moving an 18 kg block. At what velocity did the block move?
What would happen to a balloon full of air if you moved it from above a water surface to ten feet below the water surface?
The volume of the balloon would decrease.
How is a wedge different from an inclined plane?
A wedge is used in motion
A lever ____.
Multiplies force and changes direction
The center of gravity of a baseball bat would be best described as
near the fat end
What measures how much force is applied to an object in order to rotate it?
A perfectly efficient machine ____.
Converts all the power applied to it into outputted force
Which of the following wedges generates the greatest amount of force.
11" long and 4" high
What mechanical motion principle do the brakes in a car or on a bicycle use?