Question

Efficiency of Machines Quick Check
3 of 53 of 5 Items
Question
What can be done to improve the efficiency of a ramp?(1 point)
Responses

Add a rough surface.
Add a rough surface.

Smooth the surface.
Smooth the surface.

Insulate the surface with foam.
Insulate the surface with foam.

Make it shorter and steeper.

Answer 1

Make it longer and less steep.