Question

1. Consider a satellite which is in orbit around the earth. Which of the following statements is true?

a. The satellite and the earth experience the same force of gravitational attraction.

b. The satellite and the earth experience the same acceleration.

c. The satellite experiences a stronger gravitational force than the earth.

d. The gravitational force acting on the satellite (which is in outer space) is zero.

e. Only the satellite experiences a gravitational force, and not the earth.

2. Which of the following statements is false?

a. Two objects having the property of mass will be attracted to one another via gravity.

b. Artificial gravity can be achieved in space by utilizing the concept of centripetal force.

c. When an object is “weightless”, the force of gravity acting on it has a magnitude of zero.

d. The acceleration due to gravity varies slightly at different points on Earth’s surface.

e. Objects orbiting the Earth, such as satellites, are in constant free-fall.

Answer 1