Newton's 2nd Law

Front

What does Newton's 2nd Law state?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This can be expressed as F = ma.

Front

If the net force on an object doubles, what happens to its acceleration?

Back

The acceleration doubles.

Front

What is the formula to calculate weight?

Back

Weight (W) is calculated as W = mg, where m is mass and g is the acceleration due to gravity (approximately 9.81 m/s²).

Front

How do you calculate acceleration using Newton's 2nd Law?

Back

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

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 an object has a mass of 10 kg and experiences a net force of 50 N, what is its acceleration?

Back

Acceleration is 5 m/s² (calculated using a = F/m).

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

What is the relationship between mass and acceleration in Newton's 2nd Law?

Back

As mass increases, acceleration decreases for a given net force.

Front

If an object is accelerating at 2 m/s² and has a mass of 5 kg, what is the net force acting on it?

Back

The net force is 10 N (calculated using F = ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.