Question

solve this science question.

Answer 1

Ans 1 A simple machine is a mechanical device that changes the direction or magnitude of a force.

Ans 2 A pulley is a wheel with a groove along its edge, that holds a rope or cable. 
fixed and movable pulley..

Ans 3 Wedges are simple machines made of a device that is thick on one end and is thin at the other end. A wedge can be thought of as two inclined plane back to back.

Ans 4 simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened: ropes are so applied that as one unwinds from the wheel, another rope is wound on to the drum.

Ans 5The fulcrum is the pivot point on which the lever rests and pivots.
load is that object that we try to move or lift or simply an object on which output force acts.
An effort is the input force that we apply to move or lift theload. 

Answer 2

Answer:

Explanation:

Ans 1 A simple machine is a mechanical device that changes the direction or magnitude of a force.

Ans 2 A pulley is a wheel with a groove along its edge, that holds a rope or cable. 

fixed and movable pulley..

Ans 3 Wedges are simple machines made of a device that is thick on one end and is thin at the other end. A wedge can be thought of as two inclined plane back to back.

Ans 4 simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened: ropes are so applied that as one unwinds from the wheel, another rope is wound on to the drum.

Ans-5 The fulcrum is the pivot point on which the lever rests and pivots.

load is that object that we try to move or lift or simply an object on which output force acts.

I hope this answer will help you