# Science

1) What is the direction of the net force acting in a satellite as it orbits Earth at a constant speed?

A) in the direction the satellite is moving
B) toward the center of the earth
C) away from the center of earth
D) opposite the direction the satellite Is moving

2) Satellite A is orbiting earth at an altitude of 500 km and satellite B is orbiting 800 km above the surface. How does the velocity of satellite a compare to the velocity of satellite b?

A) it depends on the masses of the satellites

B) the velocity of satellite B is equal to the velocity of satellite A

C) the velocity of satellite A is greater than the velocity of satellite b

D) the velocity of satellite a is less than the velocity of satellite b

3) What happens to the gravitational force and orbital velocity of a satellite as the satellite transfers to an orbit that is closer to earth?

A) the gravitational force increases and the velocity decreases

B) the gravitational force decreases and the velocity increases

C) the gravitational force increases and the velocity increases

D) the gravitational force decreases and the velocity decreases

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