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- 1. Multiple ChoiceIf you double the mass of an object with the same force apply on it, the acceleration willdoublecut in halfthe samezero
- 2. Multiple ChoiceWhat kind(s) of objects have inertia?all objects with massonly objects at restonly objects in motiononly objects whose motion is being changed
- 3. Multiple ChoiceWhich one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?feathersironsamedepends on their friction
- 4. Multiple ChoiceAfter a cannonball is fired into frictionless space, the amount of force needed to keep it going equalstwice the force with which it was firedthe same amount of force with which it was fired1/2 the force with which it was firedzero, since no force is required to keep it moving.
- 5. Multiple ChoiceThe acceleration produced by a net force on an object isinversely proportional to the mass of the object.directly proportional to the magnitude of the net force.in the same direction as the net force.all of the above
- 6. Multiple Choice
A 10-kg brick and a 1-kg book are dropped in a vacuum. The Fg (weight) on the 10-kg brick is
10 times as much as the force on the 1-kg book
zero.
the same as the force on the 1-kg book.
none of the above
- 7. Multiple ChoiceA book weighs 4 N. When held at rest in your hands, the net force on the book is
0 N.0.4 N.4 N.39 N. - 8. Multiple ChoiceA 20 kg bike accelerates at 10 m/s2. what was the net force25 Newtons20 Newtons200 Newtons10 Newtons
- 9. Multiple Choice
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?The cannon moving forwardThe cannonball moving forwardThe cannon moving backwardThe cannonball moving backward - 10. Multiple ChoiceWhich one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?Newton's 1st LawNewton's 2nd LawNewton's 3rd LawNewton's Law of Biology
- 11. Multiple ChoiceThe tendency of an object to stay in motion or at rest is calledvelocityaccelerationspeedinertia
- 12. Multiple ChoiceWhat is the difference between mass and weight?mass is how much matter is in an object, and weight is the gravitational pull on that objectmass and weight are the sameweight affects how much mass is in an objectweight is determined by how many atoms make up an object
- 13. Multiple ChoiceWhat is the net force?5000 N right4000 N right40 N left4000 N left
- 14. Multiple ChoiceWhat is happening at C?StationaryAcceleratingFast steady speed; moving away from the starting positionSlower steady speed; moving away from the starting position
- 15. Multiple ChoiceWhat is happening at D?StationaryAcceleratingFast steady speed; moving away from the starting positionSlower steady speed; moving away from the starting position
- 16. Multiple ChoiceWhich of the following shows the direction of the friction force?ABCD
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