Circular Motion

Front

What is circular motion?

Back

Circular motion is the motion of an object that revolves around a fixed point or axis in a circular path.

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration directed towards the center of a circular path, which keeps an object moving in that path.

Front

Why do objects in circular motion experience centripetal acceleration?

Back

Objects in circular motion experience centripetal acceleration because they are constantly changing direction, which means their velocity is changing, and this change is directed inward.

Front

What is the formula for centripetal acceleration?

Back

The formula for centripetal acceleration (a_c) is a_c = v²/r, where v is the tangential speed and r is the radius of the circular path.

Front

What is the relationship between speed, radius, and centripetal acceleration?

Back

The centripetal acceleration increases with the square of the speed and decreases with an increase in the radius.

Front

What is the SI unit for centripetal acceleration?

Back

The SI unit for centripetal acceleration is meters per second squared (m/s²).

Front

What is the formula for the circumference of a circle?

Back

The formula for the circumference (C) of a circle is C = 2πr, where r is the radius.

Front

What is the SI unit for circumference?

Back

The SI unit for circumference is meter.

Front

How does tangential speed relate to centripetal acceleration?

Back

Tangential speed is the linear speed of an object moving along the circular path, and it is directly related to centripetal acceleration through the formula a_c = v²/r.

Front

What direction does centripetal acceleration act?

Back

Centripetal acceleration acts towards the center of the circular motion.