Final Review - Forces

Front

What is Newton's 1st 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)

Front

What is centripetal force?

Back

Centripetal force is the force that keeps an object moving in a circular path, directed towards the center of the circle.

Front

What happens to the gravitational force between two objects if the distance between them is doubled?

Back

The gravitational force is reduced to one-fourth (F/4) of its original value.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object, calculated as Weight (W) = mass (m) × gravitational acceleration (g).

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 exerted by gravity on that mass.

Front

What does it mean for forces to be balanced?

Back

Balanced forces occur when two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What is the significance of the net force?

Back

The net force is the overall force acting on an object, determining its acceleration and direction of motion.

Front

What is inertia?

Back

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

Front

What is Newton's 2nd 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 = ma).