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What do machines do?
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
One person pulls on a rope with a force of 400 N to the right. Another person pulls on the opposite end with a force of 600 N to the left. What is the unbalanced net force?
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
A worker needs to load a heavy box onto a truck. The worker uses a ramp to move the box because the ramp
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
Which statement best explains how the pulley system in a crane makes work easier?
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
The mechanical advantage of a machine is the number of times a machine increases
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
Students observed a turtle in the schoolyard. They measured the distance that the turtle traveled in 30 minutes. If the turtle walked 40 meters in that time, what was its average speed?
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
Which simple machine increases the distance over which a load travels and reduces the needed force?
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
Which simple machine uses a fulcrum to redirect a force?
the force exerted on the machine
The pulley system reduces the amount of force needed to lift an object
80 mph
inclined plane
change the amount of force you exert of the distance over which you exert the force
200 N to the left
lever
reduces the amount of force applied to the box
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