Force and Motion

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = m x a) where force is measured in Newtons, mass in kilograms, and acceleration in meters per second squared.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact with each other.

Front

What is the relationship between mass and acceleration in terms of force?

Back

The greater the mass of an object, the more force is required to accelerate it. Conversely, for a given force, a greater mass will result in less acceleration.

Front

What is Newton's Second Law of Motion?

Back

Newton's Second Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is an example of action and reaction forces?

Back

When a swimmer pushes against the water (action), the water pushes back against the swimmer (reaction), propelling them forward.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses. It pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is the effect of balanced forces on an object?

Back

Balanced forces do not change the motion of an object. If an object is at rest, it remains at rest; if it is in motion, it continues to move at a constant velocity.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate, changing its speed or direction of motion.