Examples of you/I being against objects (e.g. objects of sentences):
When you do positive work on an object, you are transferring energy to the object, increasing its energy level or changing its state. This could involve moving the object against a force or applying a force to accelerate it in the direction of the force.
When you push against an object, the force you apply is called the applied force. This force is the external force exerted on the object by you pushing against it.
When you put a transparent object against the sun, the light goes through the object. Depending on the material and thickness of the object, it may refract or bend the light, casting a shadow or creating a prism effect.
[object Object]
An example of downward force of air against a moving object is drag. Drag is the resistance force exerted by air on an object moving through it in the opposite direction. It acts to slow down the object's motion by creating a counterforce against its movement.
Object
When an object pushes against an object that cannot be squashed, we get an increase in pressure. This increased pressure can lead to a reaction force that pushes back on the object, causing it to either move or stay in place, depending on the forces involved.
The force that pushes against a moving object as it passes through water is called drag. Drag is caused by the resistance of the water pushing against the object as it moves through it. This force can slow down the object's motion.
Friction
[object Object]
The force that occurs when one object pushes against another object is called contact force. This force can be exerted through direct physical contact between the objects.
The force that occurs when one object rubs against another object is called friction. Friction acts in the opposite direction of the motion and opposes the movement of the objects.