Newton's First Law of Motion (Inertia) Flashcard Review

Front

What is the formula to calculate weight on Earth?

Back

Weight (W) = mass (m) * gravitational acceleration (g), where g is approximately 10 m/s².

Front

If an object has a mass of 3 kg, what is its weight on Earth?

Back

30 N (W = 3 kg * 10 m/s²).

Front

What is inertia?

Back

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

Front

How does mass relate to inertia?

Back

Inertia depends on the amount of mass; more mass means more inertia.

Front

What is Newton's First Law of Motion?

Back

An object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by a net force.

Front

What happens to an object's weight if it is moved from Earth to the Moon?

Back

The weight changes due to the difference in gravitational force, but the mass remains the same.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the unit of weight in the metric system?

Back

The unit of weight is Newton (N).

Front

What does it mean for an object to be in equilibrium?

Back

An object is in equilibrium when the net force acting on it is zero, resulting in no change in motion.

Front

What is a net force?

Back

Net force is the vector sum of all forces acting on an object.