Newton's 2nd Law

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd 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 net force?

Back

The formula to calculate net force is F_net = m * a, where F_net is the net force, m is the mass of the object, and a is the acceleration.

Front

If a 25 kg bike accelerates at 10 m/s², what is the net force?

Back

250 N (calculated using F = ma: F = 25 kg * 10 m/s²).

Front

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

Back

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

Front

If the net force acting on an object doubles along with the mass of the object, what happens to the acceleration?

Back

The acceleration stays the same.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

How does mass affect acceleration when a constant force is applied?

Back

As mass increases, acceleration decreases if the force remains constant, according to F = ma.

Front

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

Back

The relationship is defined by Newton's 2nd Law: Force equals mass times acceleration (F = ma).

Front

What is an example of unbalanced forces?

Back

A person pushing a stationary car; if the force is greater than the friction, the car will move.

Front

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

Back

The unit of force is the Newton (N).