Conceptual Physics Chapter 9 Test Questions and Answers

Conceptual Physics Chapter 9 Test Questions and Answers If the mass of Earth somehow increased with no change in radius, your weight would - Answer-increase also When the distance between two stars decreases by one third, the force between them - Answer-increases to nine times as much You experience weightlessness - Answer-in the absence of a supporting surface in a freely falling elevator momentarily when you step off a chair *all of the answers are correct* If the moon had twice as much mass and still orbits Earth at the same distance, ocean bulges on earth would be - Answer-larger When you weigh yourself on a bathroom scale on a slight incline instead of a level surface, your weight reading on the scale will be - Answer-less During an eclipse of the sun (when the moon and the sun are totally lined up) the high ocean tides on earth are - Answer-extra high The force of gravity acting on you will increase if you - Answer-stand on a planet with a radius that is shrinking Two planets in space gravitationally attract each other. If both the masses and distances are doubled, the force between them is - Answer-does not change If the sun became twice as massive, your attraction to the sun would double and your weight as measured on earth would - Answer-not change when a star collapses to form a black hole, its mass - Answer-remains the same half-way to the center of a planet of uniform density, your weight compared to that at the surface would be - Answer-one-half if you were to weigh yourself in an elevator that is in free fall, compared to your ordinary weight, you would weigh - Answer-zero tidal forces in general are the result of - Answer-unequal forces acting on different parts of a body a lunar month is about 28 days. if the moon were closer to earth than it is now, the lunar month would be - Answer-less than 28 days two objects move toward each other due to gravity. as the objects get closer and closer, the force between them - Answer-increases