NSES Content Standard B  Physical Science: Position and motion of objects  Grades K-4, page 127  The position and motion of objects can be changed by pushing or pulling. The size of the change is related to the strength of the push or pull.

 
Benchmark 4F The Physical Setting: Motion
Grades K-2, page 89
The way to change how something is moving is to give it a push or a pull.

Benchmark 4F The Physical Setting: Motion
Grades 3-5, page 89
Changes in speed or direction of motion are caused by forces. The greater the force is, the greater the change in motion will be. The more massive an object is, the less effect a given force will have.