Circular Motion Multiple Choice Quiz 1

A 50 g mass is swung in a horizontal circle as shown. It completes 10 revolutions in 65.2 seconds. The circle has a 50 cm diameter. Which of the following forces is closest to that required to keep the mass moving in this circle?

A low-earth orbiting satellite moves anti-clockwise around the Earth as shown below. Considering all forces acting on the satellite, which option correctly shows the direction of the net force acting on this low-earth orbiting satellite at point X?

Two satellites are in orbit around the Earth at the radii shown. Satellite Y has twice the mass of satellite X. If the orbital velocity of X and Y is V(x) and V(y) respectively. What is value of V(y)/V(x)?

A 200 g mass is swung in a horizontal circle as shown. It completes 3 revolutions in 5 seconds. The circle has a 2 m radius. Which of the following forces is closest to that required to keep the mass moving in this circle?

The terminal velocity (vt) of a spherical object in Earth’s atmosphere is proportional to the square root of its radius (r). Which graph correctly shows this relationship?

In an experiment, a rubber stopper on the end of a string is spun anti-clockwise, as shown below. Which diagram below correctly describes the direction of both the stopper’s velocity (v) and the centripetal force (Fc) acting on it whilst in the position shown?

A plane flies in a uniform horizontal circle at constant speed and height. Which statement about the forces acting on the plane is correct?