Flashcard: Forces

Front

What is drag in the context of forces?

Back

Drag is a force that opposes the motion of an object through a fluid (like air or water), often referred to as air resistance when dealing with objects moving through air.

Front

What is rolling friction?

Back

Rolling friction is the resistance that occurs when an object rolls over a surface, which is generally less than sliding friction.

Front

What causes a skydiver to stop accelerating?

Back

Drag (air resistance) causes a skydiver to stop accelerating when it balances the force of gravity.

Front

What does it mean if an object is not accelerating?

Back

If an object is not accelerating, it means that the net force acting on it is zero.

Front

What is the scientific unit for measuring force?

Back

The scientific unit for force is the Newton (N).

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, force equals mass times acceleration (F = ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; it is directly related to the mass of the object.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces result in no change in motion, while unbalanced forces cause an object to accelerate.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, such as the Earth and an object, which pulls the object towards the center of the Earth.

Front

What is the formula for calculating weight?

Back

Weight is calculated using the formula: Weight (W) = mass (m) × gravitational acceleration (g).