Forces Study Guide

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal in size or direction, causing an object to accelerate or change its motion.

Front

What does Newton's 2nd law state?

Back

Newton's 2nd law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; more massive objects have more inertia.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, representing the quantity of motion an object has.

Front

What does Newton's 1st law state?

Back

Newton's 1st law states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force.

Front

What is the relationship between mass and inertia?

Back

A more massive object has more inertia than a less massive object, meaning it is harder to change its motion.

Front

What is the formula for calculating force?

Back

Force can be calculated using the formula F = ma, where F is force, m is mass, and a is acceleration.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, which depends on their masses and the distance between them.

Front

What is terminal velocity?

Back

Terminal velocity is the constant speed an object reaches when the force of gravity is balanced by the drag force acting against it.