Chapter 10.2 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)

Question 2

What is the definition of terminal velocity?

Answer 2

Terminal velocity is the maximum velocity attainable by an object as it falls through a fluid (air is the most common example).

Question 3

When does terminal velocity occur?

Answer 3

It occurs when the sum of the drag force and the buoyancy(force exerted on an object that is wholly or partly immersed in a fluid) is equal to the downward force of gravity acting on the object.

Question 4

What is the resultant force when an object is moving at terminal velocity?

Answer 4

When an object is moving at terminal velocity, the resultant force on it is zero.

Question 5

What does the mass of an object depend on?

Answer 5

The mass of an object depends on the quantity of matter in it.

Question 6

What is the equation for acceleration? (terminal velocity)

Answer 6

Acceleration = force/mass

Question 7

What is 1kg equal to in terms of N? (mass)

Answer 7

Of mass 1kg is 9.8N