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PS. chp.6
chp. 6 science test
| Question | Answer |
|---|---|
| if a baseball and a cannonballare dropped at the same height and at the same time, | the balls land at the same time. |
| the _________ of an object do not affect air resistance. | chemical properties |
| astronauts in space appear weightless because, | they are in free fall |
| when a train increases it's velocity, | it's momentum INCREASES |
| the law of conservation of momentum is best described as, | some or all of the momentum of the first object is transferred to the object that it hits. |
| a full shopping cart pushed with a light force, | has the least acceleration |
| according to Newtons 1st law of motion |