Unit 2 Week 3 - Circular Motion and Gravity

Front

What is angular speed?

Back

Angular speed is the rate at which an object rotates around a central point, measured in radians per second.

Front

What is uniform circular motion?

Back

Uniform circular motion is the motion of an object traveling at a constant speed along a circular path.

Front

What is the direction of acceleration in uniform circular motion?

Back

The direction of acceleration is always directed towards the center of the circular path.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, described by Newton's law of universal gravitation.

Front

What is the formula for gravitational force?

Back

F = G * (m1 * m2) / r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between their centers.

Front

What is the gravitational constant (G)?

Back

The gravitational constant (G) is approximately 6.674 x 10⁻¹¹ N(m/kg)².

Front

What is the relationship between mass and gravitational force?

Back

Gravitational force is directly proportional to the product of the masses of the two objects.

Front

What is the effect of distance on gravitational force?

Back

Gravitational force is inversely proportional to the square of the distance between the centers of the two masses.

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration directed towards the center of a circular path, necessary for an object to maintain circular motion.

Front

What is the formula for centripetal acceleration?

Back

a_c = v² / r, where a_c is centripetal acceleration, v is the linear speed, and r is the radius of the circular path.