Circular Motion Physics Quiz

What is the name of the coordinate system used to describe the location of the sphere moving along a circular path?

• Cylindrical coordinate system

• Spherical coordinate system

• Polar coordinate system

• Cartesian coordinate system

What are the polar coordinates used to describe the location of the sphere moving in a circle?

• opposite and hypotenuse

• r and theta

• x and y

• sine and cosine

What is the equation for arc length when an object moves along an arc with a constant radius?

• s = r + theta

• s = r / theta

• s = r - theta

• s = r * theta

If the radius of the string attached to the sphere is reduced, what happens to the arc length traveled by the sphere?

• It decreases

• It remains the same

• It becomes zero

• It increases

What is the equation for circumference of a circle?

• C = pi * r

• C = r^2

• C = 2 * r

• C = 2 * pi * r

What is the angular displacement for one full circle in radians?

• 3 radians

• 2 radians

• pi radians

• 2 * pi radians

What is the equation for x in polar coordinates?

• x = r * theta

• x = r / theta

• x = r + theta

• x = r * cosine(theta)

What is the equation for y in polar coordinates?

• y = r * theta

• y = r / theta

• y = r + theta

• y = r * sine(theta)