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# Uniform Circular Motion

Created by
@AccomplishedBixbite

### What is uniform circular motion?

When an object moves in a circular path with a constant speed

### In uniform circular motion, what is the difference between a scalar and vector quantity?

Scalar quantities are described with only magnitude, while vector quantities need both magnitude and direction

### Why does velocity change in uniform circular motion even if the speed is constant?

Due to changes in the object's direction

### What happens to an object's velocity in uniform circular motion according to Newton's first law of motion?

<p>Velocity remains constant</p> Signup and view all the answers

### How would you describe the direction of velocity in uniform circular motion?

<p>Tangential to the circle at every point</p> Signup and view all the answers

### What is the primary reason why an object in circular motion does not follow a straight-line path?

<p>Net force directed towards the center of the circle</p> Signup and view all the answers

### What is the role of centripetal force in maintaining circular motion?

<p>It pulls objects inward towards the center of the circle</p> Signup and view all the answers

### What is the apparent outward-directed force felt by something moving in a circle due to inertia called?

<p>Outward centrifugal force</p> Signup and view all the answers

### Which equation is used to calculate the inward acceleration of an object in circular motion?

<p>$a = v^2 / r$</p> Signup and view all the answers

### What happens to a toy airplane's motion if the child spinning it lets go of the string providing centripetal force?

<p>It moves in a straight-line path</p> Signup and view all the answers

### What is the centripetal acceleration of the child on the bike?

<p>1.05 m/s^2</p> Signup and view all the answers

### If the child's mass was given in grams instead of kilograms, how would this conversion affect the centripetal acceleration?

<p>There would be no change in centripetal acceleration.</p> Signup and view all the answers

### If a child with a mass of 40kg rides a bike at the same speed in a circle with a radius of 4m, how would the centripetal force compare to the original scenario?

<p>The centripetal force would be greater than in the original scenario.</p> Signup and view all the answers

### What happens to the centripetal force if the radius of the circular path is increased while keeping all other factors constant?

<p>The centripetal force increases.</p> Signup and view all the answers

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