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Answer:
1.c
2,d
3.
4.b
5.
Explanation:
yan lang po alam ko
Answer:
1. D
2. D
3. C
4. B
5. C
Explanation:
1. Fulcrum - the point at which the lever rotates. Input force (also called the effort) - the force applied to the lever. Output force (also called the load) - the force applied by the lever to move the load.
2. A common example is a wheelbarrow where the effort moves a large distance to lift a heavy load, with the axle and wheel as the fulcrum. ... Nutcrackers are also an example of a second class lever.
3. The fulcrum is the point where the scissor blades are joined together. The force or effort is the end or handle of the scissors
4. The wheel of a fixed pulley system is attached to a solid structure such as a wall or a floor, while the rope is free. This means the pulley itself is stationary. A fixed pulley offers no mechanical advantage but does allow a person to redirect the force. So rather than directly lifting a heavy object up, a person can use a pulley to instead lift the object by pushing down on the rope.
5. The wheel of a moving pulley is not attached to any particular surface; instead, the rope of the pulley is attached to a stationary surface. Unlike a fixed pulley, a moveable pulley does offer a mechanical advantage. A heavy load is attached to the wheel rather than the rope, and as the rope is pulled the wheel slides up the rope, bringing the load with it. This requires less work than lifting the load directly would require.