Why does a smaller radius require a greater force?

The work done by a force is the force multiplied by the distance the point where the force acts moves. And, in a rotation about a point, the distance it moves is proportional to the distance of the point from the centre. So if the distance is less, the force required to do the same work is greater.

What force is needed to make an object move in a circle?

centripetal force
Any object moving in a circle (or along a circular path) experiences a centripetal force. That is, there is some physical force pushing or pulling the object towards the center of the circle. This is the centripetal force requirement.

How is the centripetal force related to the radius of the circular path the mass is moving on?

A centripetal force is any force that induces circular motion in an object. How is the centripetal force related to the radius of the circular path the mass is moving on? The force is inversely proportional to the radius of the path. You just studied 5 terms!

What is the force that causes centripetal acceleration when a car goes around a curve?

The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. A minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway.

How the radius affects the force?

The explanation relates to the fact that the linear distance traveled around the edge of the circle is also proportional to the radius. Over all, the greater the radius of the circle, for the same radial velocity, the greater the force.

How does radius affect the centripetal force?

Centripetal force is perpendicular to velocity and causes uniform circular motion. The larger the F c , the smaller the radius of curvature r and the sharper the curve.

Why centripetal force is necessary for circular motion?

It’s necessary to have a centripetal force to maintain a circular motion because if there is no resultant force acting on an object (that is all forces acting on the object add to zero), then the object travels with uniform motion in a straight line, or stays at rest.

Why is uniform circular motion important?

Uniform circular motion is an important concept and has many applications in life. Student’s concept understanding of uniform circular motion is not optimal because the teaching learning is not carried out properly in accordance with the characteristics of the concept.

What happens to the centripetal force as the radius increases?

If the magnitude of centripetal force increases what will happen to the object moving? – Quora. From the above relation,centripetal force is inversely proportional to the radius and is directly proportional to the mass and the velocity.

What is the force that causes centripetal acceleration when a car goes around a curve Quizizz?

A car traveling down the road at a constant speed. 45 seconds. Q. What is the force that causes centripetal acceleration when a car goes around a curve? Friction.

What is the relationship between gear radius and torque?

These radii are lever arms. For the driven gear, the larger the radius (tooth count), the greater the twisting force (torque) we can apply to its axle. Conversely, the smaller the radius of the driving gear, the less torque we need to apply on its driving axle to exert a given force where the teeth mesh.

Why do we weigh less when the Earth is rotating?

This means that there must be a net forceon you – the centripetal force pointing toward the center of the Earth. Therefore, the downward weight force must be greater than the upward scale force, and the difference between the mg force and the scale force equals the centripetal force on you! You weigh less because the Earth is rotating!

What is the centripetal force on You?

This means that there must be a net force on you – the centripetal force pointing toward the center of the Earth. Therefore, the downward weight force must be greater than the upward scale force, and the difference between the mg force and the scale force equals the centripetal force on you!

Why does torque increase when ω increases?

Since power is the same, τ has to alter according to ω to maintain the same value of P. Hence when ω increases, τ decreases and vice versa. For the larger gear, ω is less, hence torque is more. There are a few ways to examine this question, and all support the same conclusion (which is a good thing for the laws of physics 🙂 ).