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physical science

chapter 3 test review

questionAnswer
what is the momentum of a 0.15 kilogram baseball moving at 20 m/sec? 3kg m/sec
an astronaut is planning a trip to a new planet. according to newtons law of universal gravitation, the astronaut wight on the new planet will be greater than his weight on earth if... the new planet has more mass than earth but the same radius.
what is the approximate weight in newtons of a 7.0 kilo bowling ball? 70 newtons
when the force on an object are balanced we say that the object.... is in equilibrium
newtons third law of motion involves what? a force pair acting on two different objects
a girl sitting on a swing exerts 490 newtons down and the swings ropes exerts 245 newtons each up. what is the net force? o newtons
compared to your weight and mass on earth if you were on the moon... your weight would be less but your mass would remain the same
objects tend to resist changes in motion. this property is called... Inertia
a 0.15 kg baseball and a 7.25 kg bowling ball are both rolling at 3 m/sec. which is easier yo stop? the baseball
the acceleration due to gravity is approximately 10 m/sec. how fast will a golf ball being dropped after 3 seconds 30 m/sec
Created by: kennahherz