Gravity and Friction

Front

What is the effect of friction on the motion of an object?

Back

Friction opposes the motion of an object, causing it to slow down or stop.

Front

How does the surface material affect the amount of friction?

Back

Different materials have different coefficients of friction; smoother surfaces like wood have less friction compared to rough surfaces.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

How does mass affect the gravitational force between two objects?

Back

The gravitational force increases with the mass of the objects; more massive objects exert a stronger gravitational pull.

Front

What happens to an object in motion when no external forces act on it?

Back

It will continue to move at a constant velocity in a straight line due to inertia.

Front

What is the relationship between mass and acceleration in the context of gravity?

Back

In free fall, all objects accelerate at the same rate due to gravity, regardless of their mass.

Front

What is the role of gravity in the motion of planets around the sun?

Back

Gravity keeps planets in orbit around the sun by providing the necessary centripetal force.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on an object at rest and prevents it from starting to move, while kinetic friction acts on an object in motion.

Front

How does incline affect the force of gravity acting on an object?

Back

On an incline, the force of gravity can be resolved into two components: one parallel to the incline (causing acceleration) and one perpendicular to the incline (affecting normal force).

Front

What is the formula for calculating gravitational force?

Back

The formula is F = G * (m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.