Answer: Less force is required to lift the load.
How does a pulley make lifting easier?
Answer: A pulley changes the direction of the applied force, making it easier to lift objects.
Why is the wheel and axle considered a simple machine?
Answer: It reduces the effort needed to move objects by spreading force over a greater distance.
What are the two parts of a wheel and axle?
Answer: The wheel and the axle (rod).
What is a wedge, and how is it used?
Answer: A wedge is a simple machine used to cut or split objects, such as an axe or chisel.
Why are screws more effective than nails for holding objects?
Answer: Screws have threads that grip tightly, providing stronger hold and stability.
What are examples of firstclass levers?
Answer: Seesaw, scissors, and a crowbar.
