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 the force, m is the mass, and a is the acceleration.

Front

How do you calculate force using mass and acceleration?

Back

Force can be calculated using the formula F = ma, where F is the force in Newtons, m is the mass in kilograms, and a is the acceleration in meters per second squared.

Front

If a 20 kg object accelerates at 10 m/s², what is the force acting on it?

Back

The force acting on the object is 200 Newtons, calculated using F = ma (F = 20 kg * 10 m/s²).

Front

What happens to the acceleration of an object if the mass increases while the force remains constant?

Back

If the mass increases while the force remains constant, the acceleration of the object decreases, as acceleration is inversely proportional to mass.

Front

What is the relationship between mass and acceleration when the same force is applied?

Back

When the same force is applied, an object with greater mass will have a smaller acceleration compared to an object with lesser mass.

Front

What is meant by unbalanced forces?

Back

Unbalanced forces are forces that do not cancel each other out, resulting in a net force that causes an object to accelerate in the direction of the net force.

Front

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

Back

When unbalanced forces act on an object at rest, the object begins to move in the direction of the net force.

Front

What is the effect of friction on the motion of an object?

Back

Friction is a force that opposes the motion of an object, which can affect the net force and thus the acceleration of the object.

Front

How does the mass of an object affect the force required to change its motion?

Back

The greater the mass of an object, the more force is required to change its motion, as per Newton's Second Law.

Front

What is the formula for calculating acceleration?

Back

Acceleration can be calculated using the formula a = F/m, where a is acceleration, F is the net force, and m is the mass.