Question

what does a machine change to make work easier? select three options
the amount of work done
the amount of force applied
the time needed to do the work
the direction of a force
the distance over which a force is applied

Explanation:

Machines cannot change the total amount of work done (work = force × distance, so work is conserved). They ease work by modifying force, force direction, and force distance. Changing time does not directly make the work itself easier, only the rate.

Answer:

• the amount of force applied
• the direction of a force
• the distance over which a force is applied