Which force will decrease if the surface of a ramp is made smoother. gravity, magnetism, friction, or electricity

In science and physics what is the standard unit of measure for speed?

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation