Normal Force and Friction Concepts

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

How does the normal force change when additional downward force is applied to an object on a surface?

Back

The normal force increases as the surface counteracts the added downward force.

Front

What happens to gravitational force as the distance between two objects increases?

Back

The gravitational force decreases as the distance between the two objects increases.

Front

What is friction?

Back

Friction is the force that opposes the relative motion of two surfaces in contact.

Front

What are the two main types of friction?

Back

The two main types of friction are static friction (preventing motion) and kinetic friction (opposing motion).

Front

What is free fall?

Back

Free fall is the motion of an object when only the force of gravity is acting on it.

Front

What is the role of friction when a box slides on a rough surface?

Back

Friction opposes the motion of the box, causing it to slow down and eventually stop.

Front

What is the formula for calculating mass using force and acceleration?

Back

Mass (m) can be calculated using the formula: m = F/a, where F is the force and a is the acceleration.

Front

What is terminal velocity?

Back

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

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight (W) = mass (m) × gravitational acceleration (g).