weight and terminal velocity

Question 1

what is the equation for weight?

Answer 1

weight, W (N) = mass, m (kg) x gravitational field strength, g (N/kg) - (obvs u can rearrange this equation)

Question 2

what is air resistance?

Answer 2

air particles being pushed out of the way by a moving object + push back.

Question 3

why would liquid resistance (drag) be larger for the same object that falls in air?

Answer 3

the resistance force will be greater for a liquid as more particles per second need to be pushed out of the way

Question 4

what is terminal velocity?

Answer 4

The maximum speed of an object, reached when the forces moving the object are balanced by its frictional forces.

Question 5

what happens at terminal velocity?

Answer 5

At terminal velocity, the object moves at a steady speed in a constant direction because the resultant force acting on it is zero