Gravitational attraction depends on both the mass of the object and the mass of the Earth. In this case, all the objects listed are relatively small compared to the mass of the Earth, so we can compare their masses to determine which one experiences the least gravitational attraction.
The masses of the objects are:
- 40-gram eraser
- 75-gram calculator
- 380-gram cup
- 5-gram pencil
Among these, the 5-gram pencil has the least mass and will experience the least amount of gravitational attraction toward Earth.