Friday
October 24, 2014

Homework Help: Physics

Posted by Hannah on Saturday, November 7, 2009 at 6:47pm.

Hi, I had some questions about Physics and Newton’s Three Laws of Motion and was wondering if someone could possibly help me. I wasn't sure if my answers were correct and I need to make sure they are.

#1 Write out in words what “acceleration ~ net force” means.
My Answer: I think it means that acceleration is directly proportional to net force.

#2 True or False: On Earth the mass and weight of an object are the same.
My answer: False

#3 In space, would an object with a weight of 20 Newtons or an object with a mass of 2 kilograms have more Inertia?
My Answer: They would have the same inertia or
The object with a mass of 2 kilograms (I wasn’t sure.)

#4 True or False: For the same net force on an object, less mass means more acceleration.
My Answer: False

#5 True or False: The quantity 1/10 is less than the quantity 1/100. WHY?
My Answer: False, both quantities are the same?! (I was really confused by this question.)

#6 True or False: All free-falling objects have the same force/mass ratio and undergo the same acceleration at the same location.
My Answer: False

Thank you guys so much. I have a huge test over this next week and I still don’t think I’ve grasped the whole idea behind all of these concepts. Physics isn’t my best subject and if anyone knows any good websites that can help me out, I would really appreciate it.

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