Understanding Newton's Laws of Motion

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a) or F = ma.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object (measured in kg), while weight is the force exerted by gravity on that object (measured in newtons).

Front

What happens to an object's motion when the net force acting on it is zero?

Back

The object remains at rest or moves with constant velocity.

Front

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

Back

The unit of force is the newton (N).

Front

How do you calculate acceleration?

Back

Acceleration (a) = net force (F_net) / mass (m).

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is the unit of mass?

Back

The unit of mass is the kilogram (kg).

Front

If a 10 kg object experiences a net force of 30 N, what is its acceleration?

Back

Acceleration = 30 N / 10 kg = 3 m/s².

Front

What is inertia?

Back

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