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 at a constant velocity unless acted upon by an unbalanced force.

Front

Define mass.

Back

Mass is the amount of matter in an object, measured in kilograms (kg). It is a scalar quantity and does not change regardless of location.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity (W = m * g).

Front

What is the formula to calculate weight?

Back

Weight (W) = Mass (m) × Acceleration due to gravity (g).

Front

What does the law of inertia imply about objects in motion?

Back

Objects in motion will continue to move in a straight line at constant speed unless acted upon by an unbalanced force.

Front

What happens to an object's inertia as its mass increases?

Back

As an object's mass increases, its inertia also increases.

Front

What is the difference between mass and weight?

Back

Mass is a measure of the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate, changing its state of motion.

Front

How does gravity affect weight?

Back

Weight varies with the strength of the gravitational field; it is greater on planets with stronger gravity.

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 (F = m * a).