* Simple: The skydiver's parachute increases air resistance, slowing their descent.
* Technical: Air resistance, also known as drag, is a force that opposes the motion of objects through the air.
* Descriptive: As the car accelerated, it encountered increased air resistance, which made it harder to gain speed.
* Figurative: His dreams seemed to be met with air resistance, like he was constantly pushing against an invisible wall.
* Specific: The aerodynamic design of the car reduces air resistance, improving fuel efficiency.
Let me know if you'd like more examples!