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- 1. Multiple ChoiceWhat forces cause a planet to orbit?gravity and orbitgravity and inertiagravity and massgravity and weight
- 2. Multiple ChoiceAn astronaut weighs ____ in space.lessmorethe same100 Newtons
- 3. Multiple ChoiceYou weigh more on a mountain than in a valley.TrueFalse
- 4. Multiple ChoiceYou weigh more on the beach than on a mountain.TrueFalse
- 5. Multiple ChoiceYour mass increases on a large planet with more gravity.TrueFalse
- 6. Multiple ChoiceOn Earth, which has a greater gravitational force acting on it?an iPhonea laptopa doga car
- 7. Multiple ChoiceGravity on the moon is about 1/6 the gravity felt on the earth. This is becausethe moon is much less massive than the earththe earth has a molten core and the moon doesn'tthe moon is so much further from the sun than the earth.the moon is so far away from the earth
- 8. Multiple ChoiceAn astronaut's mass ______ in space.changesincreasesdecreasesstays the same
- 9. Multiple ChoiceWhich of these two affect the pull of gravity on an object?mass and inertiamass and distancemass and forcemass and weight
- 10. Multiple ChoiceWhat would happen to the planets in the solar system if the sun’s gravitational force were to suddenly disappear?They will stop moving and become static.They will stop spinning.They will fly away in straight lines.They will start moving toward the Sun
- 11. Multiple ChoiceWhich planet has the greatest attraction to the sun?MercuryVenusEarthMars
- 12. Multiple ChoiceWhich of these best describes why your weight (on Earth) would change on another planet?Dehydration effects on different planets change weight.In general, the smaller the planet, the greater weightDifferent planets have different gravitational pullsWeight does not change, no matter where you are.
- 13. Multiple Choice
Which force in the Solar System is similar to the tension in the string?FrictionInertiaForceGravity - 14. Multiple ChoiceWhich has more gravitational force acting upon it?a busa traina cara person
- 15. Multiple ChoiceGalileo found that a ball rolling down one inclined plane would roll how far up another inclined plane?The ball would not roll up the other plane at all.to nearly the original heightto nearly twice the original height.to nearly half it original height
- 16. 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 requires to keep it moving.
- 17. Multiple ChoiceAn object following a straight-line path at a constant speedhas zero accelerationhas no forces acting on ithas a net force acting in the direction of motionnone of these
- 18. Multiple ChoiceWhich has more mass, a kilogram of feathers or a kilogram of iron?feathersironneither
- 19. Multiple ChoiceInertia is a property that the only some material objects possess.TrueFalse
- 20. Multiple ChoiceThe force due to gravity is the same no matter where in the universe you are.TrueFalse
- 21. Multiple ChoiceSuppose that an astronaut throws a rock in outer space at a location far from significant influences of gravity and air resistance. One would expect that that the rock wouldEventually stop since all objects ultimately “lose their steam”Eventually stop as its inertia slowly becomes used upContinue in motion with the same speed and directionEither a,b,c… depending on whether the astronaut continues to push it.
- 22. Multiple ChoiceThe law of inertia (Newton’s First Law) appliesto both moving and nonmoving objectsonly to moving objectsonly to objects that are not moving
- 23. Multiple ChoiceMac and Tosh are arguing in the cafeteria. Tosh says that if he flings the Jell-O with a greater speed it will have a greater inertia. Mac argues that inertia does NOT depend upon the speed, but rather upon the mass. Who is correct?MacToshNeither is correct in the concept of inertia
- 24. Multiple ChoiceA sled slides down a hill, reaches the level surface and eventually comes to a stop. The fact that the sled ultimately stops is best explained by _?__An unbalanced force would be required to keep the sled moving forward at constant speedThe presence of an unbalanced force (e.g. friction) can cause a moving object to stopThe presence of inertia causes it to stopThe natural tendency of any object is to ultimately stop
- 25. Multiple ChoiceAn object will not have any inertia if it is _?_AcceleratingMoving in a circleIn space… Nonsense! All objects have inertia
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