Gear A is the driving gear. If all the teeth are sheared off of gear B, which gear(s) will turn? gear A gear B gear C gears A and C.
A series of four gears (W, X, Y, Z) is driven by pulley V and the belt. If V turns in the direction shown, which gears will rotate clockwise? W and X W and Y Y and X Y and Z.
A box sits on a smooth table. Three strings are attached to the box, each having a weight of 10 lbs. attached to the other end.
The box will move in direction A B C D.
Four weighs are tied together and hung from the ceiling. What will be the tension in the cord at the point labeled X? 10 pounds 30 pounds 40 pounds 60 pounds.
A spring will compress one inch for every 50 pounds of force that is applied to it. How much force is needed to compress the same spring 10 inches? 125 lbs 150 lbs 200 lbs 500 lbs.
When these objects are placed on soft sand, which one will sink the deepest into the sand? A B C D.
A belt passes over a drum and its ends are connected to springs. If the drum rotates in the direction shown and there is friction between the drum and the belt, then spring 1 will get shorter, and spring 2 longer. spring 2 will get shorter, and spring 1 longer. both springs will get shorter. both springs will get longer.
The illustration shows a water tank that is made of wood plank and reinforced metal hoops. Why are the hoops closer together near the bottom of the tank? The hoops prevent the tank from toppling over. The hoops tend to slip down the sides of the tank over time. The weight of the wood planks requires more support near the bottom. The water pressure pushing against the sides of the tank is greater near the bottom.
Spaces are placed between slabs of concrete in city sidewalks to improve traction. prevent water from puddling. collect dirt and other debris. allow for expansion and contraction.
As part A moves to the left, gear C will turn in direction 1. in direction 2. first in direction 1 and then in direction 2. first in direction 2 and then in direction 1.
A spring is compressed against a wall by a wooden block that has a force applied to it. If the force is removed from the block, the spring will move to the left both the spring and block will not move the block of wood will move to the left the block of wood will move to the right.
It is true that frictional forces prevent motion altogether only operate in vertical directions always aid forces producing motion always oppose forces producing motion.
This drive pulley always turns faster than pulley B. faster than pulley A or C, but not pulley B. slower than pulleys A, B, and C. at the same rate as pulleys B and C.
What would you tell the person who is trying to loosen the rusty nut with the wrench? Move your hand closer to the but. Move your hand farther from the nut. Keep your hand where it is. It does not matter where you hold the wrench.
As piston P moves up in the direction shown, lever Q moves in direction 1 only moves in direction 2 only moves alternately in directions 1 and 2 does not move.
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