The greater the mass, the more force is needed to move it.

A push or pull can involve more than one force.

The forces can be combined to create a net force.

Equal forces pushing or pulling at an object or in opposite directions from opposite sides cancel each other out. Also creating a net force of zero.

No object will start to move until a force is exerted on it

If you have a stationary object it will not move by itself.

The difference between mass and weight is that weight is the vcmeasurement of how heavy it is, and mass is the amount inside the object.