What causes air to move towards the water from the land during the night? The ground cools faster at night than the water, which retains its heat, warming the air above it.

The ground retains the heat from the Sun longer than the water.

Gravity moves the air towards the water because water is lower than the land.

The dry air over the land is heavier than the air over the water that contains more water vapor.

Amplify and switch electrical power and electronic signals

Is this a question of an answer

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.