Types of Forces

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving when a force is applied. It acts in the opposite direction of the applied force.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other. It is usually less than static friction.

Front

What is air resistance?

Back

Air resistance, also known as drag, is a type of friction that acts against the motion of an object moving through air, causing it to decelerate.

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with a surface. It acts perpendicular to the surface.

Front

How does the normal force act on an object on an inclined plane?

Back

On an inclined plane, the normal force acts perpendicular to the surface of the incline, which is at an angle to the vertical.

Front

What is applied force?

Back

Applied force is a force that is applied to an object by a person or another object. It can cause the object to move or change its motion.

Front

What is weight force?

Back

Weight force is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity (W = mg).

Front

What is tension force?

Back

Tension force is the force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is drag force?

Back

Drag force is a resistance force that acts opposite to the direction of motion of an object moving through a fluid (liquid or gas).

Front

What factors affect air resistance?

Back

Air resistance is affected by the speed of the object, its surface area, and the shape of the object.