1) choose the answer choice that best completes the following sentence. the sun illuminates of the moon at all times. a) all b) one-fourth c) different amounts of the moon depending on the lunar phases d) one-half 2) which of the following occurs in january when the earth is closest to the sun? a) a perigee b) an apogee c) a revolution d) an ellipse 3) which of the following definitions best defines a satellite? a) the planets that orbit the stars b) the moons that orbit the planets c) the earth’s orbiting of the sun d) any object that revolves around another object 4) which of the following is not responsible for tides at the beach? a) the moon’s gravitational pull b) the sun’s gravitational pull c) the earth’s response to the moon and sun’s gravitational pulls d) venus’s gravitational pull

Which energy transformation occurs in the core of a nuclear reactor? nuclear energy mechanical energy nuclear energy - thermal energy thermal energy -- nuclear energy mechanical energy - nuclear energy

What happens to the light rays when they hit the specimen?

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.