Uniform Circular Motion - Basic - Part 2 - More Practice

Front

What is Uniform Circular Motion?

Back

Uniform Circular Motion refers to the motion of an object traveling at a constant speed along a circular path.

Front

What is the formula for centripetal acceleration?

Back

Centripetal acceleration (a_c) is given by the formula: a_c = v²/r, where v is the speed and r is the radius of the circular path.

Front

Calculate the centripetal acceleration of a toy car moving at 3 m/s on a circular path with a radius of 1 m.

Back

Centripetal acceleration = 9 m/s².

Front

What is the relationship between speed and radius in circular motion?

Back

As the radius decreases, the speed of the object also decreases if the centripetal force remains constant.

Front

What is the direction of centripetal acceleration?

Back

Centripetal acceleration always points towards the center of the circle.

Front

If the radius of a string is 0.3 m and the stopper makes 5 revolutions per second, what is the speed of the stopper?

Back

Speed = 9.4 m/s.

Front

What happens to the centripetal force if the speed of an object in circular motion increases?

Back

The centripetal force increases as the speed increases, assuming the radius remains constant.

Front

What is the formula for the circumference of a circle?

Back

Circumference (C) = 2πr, where r is the radius.

Front

Define angular velocity in the context of circular motion.

Back

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

Front

What is the relationship between linear speed and angular speed?

Back

Linear speed (v) is related to angular speed (ω) by the formula: v = rω, where r is the radius.