N2L / Types of Forces

Front

What is Newton's Second Law of Motion (N2L)?

Back

Newton's Second Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed with the formula F = ma.

Front

What is the formula to calculate frictional force?

Back

Frictional force (Ff) can be calculated using the formula: Ff = μ * Fn, where μ is the coefficient of friction and Fn is the normal force.

Front

What does the term 'net force' (Fnet) mean?

Back

Net force is the total force acting on an object after all the forces are combined. It determines the object's acceleration.

Front

What is the coefficient of friction?

Back

The coefficient of friction (μ) is a numerical value that represents the frictional force between two surfaces in contact. It varies depending on the materials involved.

Front

What is the normal force (Fn)?

Back

The normal force is the force exerted by a surface that supports the weight of an object resting on it, acting perpendicular to the surface.

Front

What is gravitational force (Fg)?

Back

Gravitational force is the force of attraction between two masses, commonly experienced as the weight of an object due to Earth's gravity.

Front

What is applied force (Fapp)?

Back

Applied force is the force that is applied to an object by a person or another object, causing it to move or accelerate.

Front

What is air resistance (Fair)?

Back

Air resistance is a type of frictional force that opposes the motion of an object through the air, often increasing with speed.

Front

How do you calculate acceleration (a) using net force and mass?

Back

Acceleration can be calculated using the formula: a = Fnet / m, where Fnet is the net force and m is the mass of the object.

Front

What happens to the net force if multiple forces are acting on an object in the same direction?

Back

If multiple forces act in the same direction, the net force is the sum of all those forces.