Gravity and air resistance quick check
1. Gravity is the force of attraction between two objects with mass. It is responsible for pulling objects towards the center of the Earth.
2. Air resistance is a type of frictional force that opposes the motion of an object as it moves through the air. It is caused by the collision of air molecules with the surface of the object.
3. Gravity affects all objects regardless of their size and shape, whereas air resistance only affects objects that are moving through the air.
4. Gravity always acts vertically downwards, while air resistance opposes the motion of an object and acts in the opposite direction to its velocity.
5. Gravity is a constant force that does not change unless the mass or distance between two objects changes. Air resistance, on the other hand, depends on the speed, size, and shape of the object, as well as the air density.
6. Gravity can cause objects to accelerate downwards, whereas air resistance can slow down the motion of objects in the air.
7. Gravity can be calculated using the equation F = mg, where F is the force of gravity, m is the mass of the object, and g is the acceleration due to gravity (approximately 9.8 m/s^2 on Earth). Air resistance is a more complex force to calculate and depends on various factors.
Overall, gravity and air resistance are two separate forces that can affect the motion of objects. While gravity always acts downwards and is a constant force, air resistance opposes the motion of objects and depends on factors such as speed and shape.