Newton's Second Law Flashcardizz

Front

What is Newton's Second Law of Motion?

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 is often expressed with the formula F=ma.

Front

How do you calculate force using Newton's Second Law?

Back

Force can be calculated using the formula F=ma, where F is the force, m is the mass of the object, and a is the acceleration.

Front

If a 5kg object accelerates at 3 m/s², what is the force acting on it?

Back

The force is 15N, calculated using F=ma (F=5kg * 3m/s²).

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force in the SI system is the Newton (N).

Front

How does mass affect acceleration according to Newton's Second Law?

Back

According to Newton's Second Law, as mass increases, acceleration decreases for a given force. This means that heavier objects require more force to achieve the same acceleration as lighter objects.

Front

What is the relationship between force, mass, and acceleration?

Back

The relationship is defined by Newton's Second Law, which states that force equals mass times acceleration (F=ma). This means that for a constant mass, an increase in force results in an increase in acceleration.

Front

What is the acceleration of a 10kg object if a force of 20N is applied?

Back

The acceleration is 2 m/s², calculated using a=F/m (a=20N/10kg).

Front

What does it mean if an object is in equilibrium?

Back

An object is in equilibrium when the net force acting on it is zero, resulting in no acceleration.

Front

How can you determine the net force acting on an object?

Back

The net force can be determined by vectorially adding all the forces acting on the object, taking into account their directions.

Front

What is the significance of the direction of force in Newton's Second Law?

Back

The direction of force is significant because it determines the direction of acceleration. According to Newton's Second Law, acceleration occurs in the direction of the net force.