Free-Body Diagrams, static friction, pendulum

Front

What is a Free-Body Diagram?

Back

A graphical representation used to visualize the forces acting on an object.

Front

What forces act on a pendulum bob?

Back

Gravity, tension force, and air resistance.

Front

What is static friction?

Back

The force that resists the initiation of sliding motion between two surfaces in contact.

Front

What is the formula for calculating the period of a simple pendulum?

Back

T = 2π√(L/g), where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity.

Front

What does it mean for forces to be balanced?

Back

The net force acting on an object is zero, resulting in no acceleration.

Front

What is the role of tension force in a pendulum?

Back

It acts upward against the weight of the bob, keeping it in circular motion.

Front

What is the difference between action-at-a-distance forces and contact forces?

Back

Action-at-a-distance forces act without physical contact (e.g., gravitational force), while contact forces require physical interaction (e.g., frictional force).

Front

What is the effect of increasing the length of a pendulum on its period?

Back

Increasing the length of the pendulum increases its period.

Front

What is the normal force?

Back

The support force exerted by a surface perpendicular to the object resting on it.

Front

What is the gravitational force?

Back

The attractive force between two masses, proportional to their masses and inversely proportional to the square of the distance between their centers.