Newton's Second Law

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 can be expressed with the formula F = ma, where F is force, m is mass, and a is acceleration.

Front

What happens when unbalanced forces act on an object at rest?

Back

The object begins moving in the direction of the net force.

Front

How do you calculate force using mass and acceleration?

Back

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

Front

If a 2 kg object is accelerated at 6 m/s², what is the force applied?

Back

The force applied is 12 N (calculated using F = ma).

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

As mass increases, for a given force, acceleration decreases. Conversely, for a constant mass, increasing the force results in greater acceleration.

Front

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

Back

The unit of force is the Newton (N).

Front

If a force of 20 N is applied to an object and it accelerates at 5 m/s², what is the mass of the object?

Back

The mass of the object is 4 kg (calculated using F = ma).

Front

How does increasing the force affect the acceleration of an object?

Back

Increasing the force applied to an object increases its acceleration, assuming the mass remains constant.

Front

What is the effect of mass on the motion of an object when a constant force is applied?

Back

A greater mass will result in a lower acceleration when the same force is applied.

Front

If two cars are moving, how can you determine which one requires more force to slow down?

Back

The car with greater mass will require more force to slow down, according to Newton's Second Law.