Circular Motion and Universal Gravity Review

Front

The force that causes an object to move in a circle is the _________________

Back

Centripetal Force

Front

It takes 687 Earth days for Mars to move once around the Sun. The _____________ of Mars is 687 days.

Back

Period

Front

A Dino Bird with a mass of .469 kg is revolving around a point with a diameter of .207 m. The Dino Bird makes 31 revolutions in 48 seconds. What is the centripetal force of the Dino Bird in Newton’s?

Back

0.79 N

Front

A Dino Bird with a mass of .469 kg is revolving around a point with a diameter of .207 m. The Dino Bird makes 31 revolutions in 48 seconds. What is the linear (tangential) velocity of the Dino Bird in m/s?

Back

0.43 m/s

Front

The __________________ relates the masses of two objects and the distance between them to how much they are attracted to each other.

Back

Law of universal gravitation

Front

What is the formula for centripetal acceleration?

Back

Centripetal Acceleration = v²/r, where v is the linear velocity and r is the radius.

Front

What is the relationship between period and frequency?

Back

Period (T) is the reciprocal of frequency (f): T = 1/f.

Front

What is the formula for gravitational force between two masses?

Back

F = G * (m1 * m2) / r², where G is the gravitational constant.

Front

What is the definition of angular velocity?

Back

Angular velocity is the rate of change of angular displacement and is measured in radians per second.

Front

What is the difference between linear velocity and angular velocity?

Back

Linear velocity refers to the speed of an object along a path, while angular velocity refers to the rate of rotation around an axis.