# PhysicsFinal

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The flashcards below were created by user tashaluth on FreezingBlue Flashcards.

1. A space ship with a dead engine in remote outer space continues moving
• a) because some kind of force acts on it
• b) in a curved path
• c) even though no net force acts on it
• d) due to gravity
2. Which of the following best describes when Newton's 1st Law is true?
• a) when there is no air resistance
• b) when there is no friction
• c)when there is no air resistance and there is no friction
• d) always
3. A 20kg bicycle is traveling on a straight flat road at a speed of 10m/s. What is the net force on the bicylce?
• a) 0 N
• b) 10 N
• c) 20 N
• d) 30 N
• e) 200 N
4. Suppose you push with a 200 N of force agianst your 1500-N refrigerator and it slides across your kitchen floor in a straight line at a constant speed. The friction force of the the floor against the refrigeratr must be
• a) zero
• b) 200 N
• c) 1300 N
• d) 1500 N
• e) greater than 1500 N
5. ...and the force with which you push must be
• a) equal and oppositely directed to the friction force
• b) the action force, and the friction the reaction force
• c) both of these
• d) none of these
6. I throw an apple into the air at 30 m/s. At the top of its trajectory, its acceleration is
• a) 0 m/s^2
• b) 5 m/s^2
• c) 10 m/s^2
• d) 20 m/s^2
• e) 45 m/s^2
7. A car increases its speed from 60 to 65 miles per hour in the same time that a bicycle increases its speed from 0 to 5 mph. In this case the acceleration is greater for the
• a) car
• b) bicyle
• c) ...it is the same for each

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 Author: tashaluth ID: 189573 Filename: PhysicsFinal Updated: 2012-12-16 07:57:29 Tags: flashcards Rodriguez Folders: Description: jnkjn Show Answers:

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