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12,600 | NDQ_013249 | newtons first law | If an object is at rest, inertia will keep it at rest. | null | null | Multiple Choice | a. true, b. false | a |
12,601 | NDQ_013251 | newtons first law | The inertia of an object is determined by its speed. | null | null | Multiple Choice | a. true, b. false | b |
12,602 | NDQ_013252 | newtons first law | Newtons first law relates motion to balanced and unbalanced forces. | null | null | Multiple Choice | a. true, b. false | a |
12,603 | NDQ_013253 | newtons first law | The speed of an object changes only when it is acted on by an unbalanced force. | null | null | Multiple Choice | a. true, b. false | a |
12,604 | NDQ_013254 | newtons first law | An object with greater mass has greater inertia. | null | null | Multiple Choice | a. true, b. false | a |
12,605 | NDQ_013255 | newtons first law | A stationary object resists movement only because of gravity. | null | null | Multiple Choice | a. true, b. false | b |
12,606 | NDQ_013256 | newtons first law | Balanced forces are needed to change an objects motion. | null | null | Multiple Choice | a. true, b. false | b |
12,607 | NDQ_013257 | newtons first law | The tendency of an object to resist a change in motion depends on its mass. | null | null | Multiple Choice | a. true, b. false | a |
12,608 | NDQ_013258 | newtons first law | If the net force acting on an object is zero, its inertia is also zero. | null | null | Multiple Choice | a. true, b. false | b |
12,609 | NDQ_013259 | newtons first law | A rolling ball will roll forever unless it runs into another object. | null | null | Multiple Choice | a. true, b. false | b |
12,610 | NDQ_013260 | newtons first law | The tendency of an object to resist a change in its motion depends on the objects size. | null | null | Multiple Choice | a. true, b. false | b |
12,611 | NDQ_013261 | newtons first law | When you are moving at a high rate of speed, inertia makes is hard to stop. | null | null | Multiple Choice | a. true, b. false | a |
12,612 | NDQ_013262 | newtons first law | Newtons first law of motion applies only to objects that are already moving. | null | null | Multiple Choice | a. true, b. false | b |
12,613 | NDQ_013263 | newtons first law | combination of all the forces acting on an object | null | null | Multiple Choice | a. inertia, b. unbalanced force, c. friction, d. law of inertia, e. mass, f. net force | f |
12,614 | NDQ_013264 | newtons first law | force that opposes the motion of any object | null | null | Multiple Choice | a. inertia, b. unbalanced force, c. friction, d. law of inertia, e. mass, f. net force | c |
12,615 | NDQ_013265 | newtons first law | an objects motion will not change unless an unbalanced force acts on it | null | null | Multiple Choice | a. inertia, b. unbalanced force, c. friction, d. law of inertia, e. mass, f. net force | d |
12,616 | NDQ_013266 | newtons first law | factor that determines the inertia of an object | null | null | Multiple Choice | a. inertia, b. unbalanced force, c. friction, d. law of inertia, e. mass, f. net force | e |
12,617 | NDQ_013267 | newtons first law | type of force needed to overcome inertia of an object | null | null | Multiple Choice | a. inertia, b. unbalanced force, c. friction, d. law of inertia, e. mass, f. net force | b |
12,618 | NDQ_013268 | newtons first law | tendency of an object to resist a change in motion | null | null | Multiple Choice | a. inertia, b. unbalanced force, c. friction, d. law of inertia, e. mass, f. net force | a |
12,619 | NDQ_013277 | newtons second law | Which two factors have an inverse relationship? | null | null | Multiple Choice | a. force and acceleration, b. force and mass, c. mass and gravity, d. mass and acceleration | d |
12,620 | NDQ_013279 | newtons second law | Any change in the motion of an object is called | null | null | Multiple Choice | a. speed., b. velocity., c. direction., d. acceleration. | d |
12,621 | NDQ_013281 | newtons second law | In the equation F = m a, if a is the acceleration due to gravity, what is F? | null | null | Multiple Choice | a. mass, b. weight, c. friction, d. frequency | b |
12,622 | NDQ_013282 | newtons second law | If you push a 20-kg box with a force of 10 N, what is its acceleration? | null | null | Multiple Choice | a. 20 m/s2, b. 10 m/s2, c. 2 m/s2, d. 0.5 m/s2 | d |
12,623 | NDQ_013285 | newtons second law | Newton determined that the acceleration of an object depends on the net force acting on the object and the objects | null | null | Multiple Choice | a. size., b. mass., c. weight., d. velocity. | b |
12,624 | NDQ_013290 | newtons second law | The relationship between mass and inertia is described by Newtons second law of motion. | null | null | Multiple Choice | a. true, b. false | b |
12,625 | NDQ_013293 | newtons second law | Newton determined that there is a direct relationship between force and mass. | null | null | Multiple Choice | a. true, b. false | a |
12,626 | NDQ_013295 | newtons second law | Any change in velocity for any reason is called acceleration. | null | null | Multiple Choice | a. true, b. false | a |
12,627 | NDQ_013296 | newtons second law | Newtons second law shows that there is a direct relationship between net force and acceleration. | null | null | Multiple Choice | a. true, b. false | a |
12,628 | NDQ_013297 | newtons second law | The greater the net force applied to a given object, the more it will accelerate. | null | null | Multiple Choice | a. true, b. false | a |
12,629 | NDQ_013298 | newtons second law | Doubling the mass of an object doubles its weight. | null | null | Multiple Choice | a. true, b. false | a |
12,630 | NDQ_013299 | newtons second law | The greater the mass of an object, the more it will accelerate when a given net force is applied to it. | null | null | Multiple Choice | a. true, b. false | b |
12,631 | NDQ_013300 | newtons second law | A net force of 1 N applied to a mass of 1 kg results in an acceleration of 0.5 m/s2 . | null | null | Multiple Choice | a. true, b. false | b |
12,632 | NDQ_013301 | newtons second law | Force can be expressed as kg m/s. | null | null | Multiple Choice | a. true, b. false | b |
12,633 | NDQ_013302 | newtons second law | Your weight equals your mass multiplied by the acceleration due to gravity. | null | null | Multiple Choice | a. true, b. false | a |
12,634 | NDQ_013303 | newtons second law | Any object that is accelerating is changing its speed. | null | null | Multiple Choice | a. true, b. false | b |
12,635 | NDQ_013304 | newtons second law | If a balanced force acts on an object, the object will accelerate. | null | null | Multiple Choice | a. true, b. false | b |
12,636 | NDQ_013305 | newtons second law | A 10-kg object has greater acceleration due to gravity than a 5-kg object. | null | null | Multiple Choice | a. true, b. false | b |
12,637 | NDQ_013306 | newtons second law | The acceleration of an object equals its mass times the net force applied to it. | null | null | Multiple Choice | a. true, b. false | b |
12,638 | NDQ_013307 | newtons second law | The acceleration of an object due to gravity depends on the objects initial velocity | null | null | Multiple Choice | a. true, b. false | b |
12,639 | NDQ_013308 | newtons second law | An object is accelerating when it | null | null | Multiple Choice | a. speeds up., b. slows down., c. changes direction., d. any of the above | d |
12,640 | NDQ_013309 | newtons second law | Newtons second law of motion relates an objects acceleration to | null | null | Multiple Choice | a. its mass., b. its velocity., c. the net force acting on it., d. two of the above | d |
12,641 | NDQ_013310 | newtons second law | Doubling the net force acting on an object | null | null | Multiple Choice | a. doubles its acceleration., b. decreases it acceleration., c. cuts its acceleration in half., d. does not affect its acceleration. | a |
12,642 | NDQ_013311 | newtons second law | If you push a 20-kilogram mass with a force of 40 N, what will be the objects acceleration? | null | null | Multiple Choice | a. 40 m/s2, b. 20 m/s2, c. 10 m/s2, d. 2 m/s2 | d |
12,643 | NDQ_013312 | newtons second law | Which units can be used to express force? | null | null | Multiple Choice | a. N, b. kg/s2, c. kg m/s2, d. two of the above | d |
12,644 | NDQ_013313 | newtons second law | If you know the mass of an object, you can calculate its weight with the formula | null | null | Multiple Choice | a. F, b. F, c. F, d. F | c |
12,645 | NDQ_013314 | newtons second law | If the mass of an object doubles, its weight | null | null | Multiple Choice | a. doubles., b. decreases., c. is not affected., d. changes by a factor of 21 . | a |
12,646 | NDQ_013315 | newtons second law | acceleration due to gravity | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | g |
12,647 | NDQ_013316 | newtons second law | formula for weight | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | f |
12,648 | NDQ_013317 | newtons second law | formula for acceleration | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | d |
12,649 | NDQ_013318 | newtons second law | measure of the force of gravity pulling on an object | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | b |
12,650 | NDQ_013319 | newtons second law | type of relationship between acceleration and mass | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | e |
12,651 | NDQ_013320 | newtons second law | measure of the change in velocity of a moving object | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | a |
12,652 | NDQ_013321 | newtons second law | type of relationship between acceleration and force | null | null | Multiple Choice | a. acceleration, b. weight, c. direct relationship, d. a =, e. inverse relationship, f. F = m a, g. 9.8 m/s2 | c |
12,653 | NDQ_013322 | newtons third law | Forces always act in pairs. | null | null | Multiple Choice | a. true, b. false | a |
12,654 | NDQ_013323 | newtons third law | What happens when a boater pushes against the water with an oar? | null | null | Multiple Choice | a. The water pushes back., b. The boat moves in the opposite direction., c. The oar moves the boat., d. two of the above | d |
12,655 | NDQ_013324 | newtons third law | Action and reaction forces always cancel out. | null | null | Multiple Choice | a. true, b. false | b |
12,656 | NDQ_013325 | newtons third law | Action and reaction forces are not balanced because they | null | null | Multiple Choice | a. are unequal in strength., b. act in the same direction., c. act on different objects., d. cancel each other out. | c |
12,657 | NDQ_013326 | newtons third law | Action and reaction forces always result in motion. | null | null | Multiple Choice | a. true, b. false | b |
12,658 | NDQ_013327 | newtons third law | An object has greater momentum if it has | null | null | Multiple Choice | a. smaller size., b. greater mass., c. greater velocity., d. two of the above | d |
12,659 | NDQ_013328 | newtons third law | Which statement about momentum is false? | null | null | Multiple Choice | a. Momentum is a force., b. Momentum may be transferred., c. Momentum is always conserved., d. Momentum is a property only of moving objects. | a |
12,660 | NDQ_013329 | newtons third law | Only moving objects have momentum. | null | null | Multiple Choice | a. true, b. false | a |
12,661 | NDQ_013330 | newtons third law | A smaller mass cannot have as much momentum as a larger mass. | null | null | Multiple Choice | a. true, b. false | b |
12,662 | NDQ_013331 | newtons third law | The momentum of a 50-kg object moving at a velocity of 2 m/s is | null | null | Multiple Choice | a. 100 kg m/s, b. 50 kg m/s, c. 25 kg m/s, d. 2 kg m/s | a |
12,663 | NDQ_013333 | newtons third law | Momentum can be transferred from one object to another. | null | null | Multiple Choice | a. true, b. false | a |
12,664 | NDQ_013334 | newtons third law | When an action and reaction occur, momentum is usually lost. | null | null | Multiple Choice | a. true, b. false | b |
12,665 | NDQ_013336 | newtons third law | Momentum is conserved only in head-on collisions. | null | null | Multiple Choice | a. true, b. false | b |
12,666 | NDQ_013339 | newtons third law | Newtons third law of motion is also called the law of conservation of momentum. | null | null | Multiple Choice | a. true, b. false | b |
12,667 | NDQ_013341 | newtons third law | Momentum is another term for acceleration. | null | null | Multiple Choice | a. true, b. false | b |
12,668 | NDQ_013342 | newtons third law | Momentum is a measure of an objects velocity. | null | null | Multiple Choice | a. true, b. false | b |
12,669 | NDQ_013344 | newtons third law | If you double the velocity of an object, its momentum also doubles. | null | null | Multiple Choice | a. true, b. false | a |
12,670 | NDQ_013347 | newtons third law | The law of conservation of momentum applies to actions and reactions. | null | null | Multiple Choice | a. true, b. false | a |
12,671 | NDQ_013349 | newtons third law | After two objects collide, their combined momentum is always zero. | null | null | Multiple Choice | a. true, b. false | b |
12,672 | NDQ_013350 | newtons third law | A bowling ball has greater momentum than a softball if both have the same velocity. | null | null | Multiple Choice | a. true, b. false | a |
12,673 | NDQ_013354 | newtons third law | how to calculate momentum | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | g |
12,674 | NDQ_013355 | newtons third law | SI unit for momentum | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | d |
12,675 | NDQ_013356 | newtons third law | equal and opposite forces that act on different objects | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | f |
12,676 | NDQ_013357 | newtons third law | combined momentum of objects remains the same when an action-reaction occurs | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | e |
12,677 | NDQ_013358 | newtons third law | property of a moving object that makes it hard to stop | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | a |
12,678 | NDQ_013359 | newtons third law | equal and opposite forces that act on the same object | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | c |
12,679 | NDQ_013360 | newtons third law | every action has an equal and opposite reaction | null | null | Multiple Choice | a. momentum, b. Newtons third law of motion, c. balanced forces, d. kg m/s, e. law of conservation of momentum, f. action-reaction forces, g. mass velocity | b |
12,680 | NDQ_013361 | newtons third law | When an action force occurs, the reaction force is always | null | null | Multiple Choice | a. in the same direction as the action force., b. equal and opposite to the action force., c. applied to the same object as the action force., d. two of the above | b |
12,681 | NDQ_013362 | newtons third law | When you stand on the floor, the force of your body pushing down on the floor is | null | null | Multiple Choice | a. matched by the floor pushing up on your body., b. less than the reaction force applied by the floor., c. a reaction to the floor pushing up., d. none of the above | a |
12,682 | NDQ_013363 | newtons third law | When a kangaroo jumps, the kangaroos action force acts on the ground and the reaction force | null | null | Multiple Choice | a. is exerted by the ground., b. acts on the kangaroo., c. is greater than the action force., d. two of the above | d |
12,683 | NDQ_013364 | newtons third law | If the following objects are all moving at the same velocity, which of the objects has the greatest momentum? | null | null | Multiple Choice | a. pea, b. marble, c. volleyball, d. bowling ball | d |
12,684 | NDQ_013365 | newtons third law | Momentum is directly related to | null | null | Multiple Choice | a. mass., b. velocity., c. distance., d. two of the above | d |
12,685 | NDQ_013366 | newtons third law | Momentum is a | null | null | Multiple Choice | a. force of nature., b. form of energy., c. property of an object., d. measure of an objects motion. | c |
12,686 | NDQ_013367 | newtons third law | What is the momentum of a 9-kilogram object that has a velocity of 3 m/s? | null | null | Multiple Choice | a. 3 kg/m/s, b. 6 kg/s/m, c. 12 kg s/m, d. 27 kg m/s | d |
12,687 | NDQ_013414 | buoyancy of fluids | Only liquids have buoyancy. | null | null | Multiple Choice | a. true, b. false | b |
12,688 | NDQ_013415 | buoyancy of fluids | Which statement is true about weight and buoyant force? | null | null | Multiple Choice | a. They work in opposite directions., b. They are always equal in strength., c. They determine whether an object floats., d. two of the above | d |
12,689 | NDQ_013416 | buoyancy of fluids | Any object sinks if its weight is greater than its volume | null | null | Multiple Choice | a. true, b. false | b |
12,690 | NDQ_013417 | buoyancy of fluids | Some objects float in water because the objects | null | null | Multiple Choice | a. weigh less than the weight of the water they displace., b. have less mass when they are placed in water., c. have greater density than water., d. have the property of buoyancy. | a |
12,691 | NDQ_013418 | buoyancy of fluids | A denser object weighs more than a less dense object of the same size. | null | null | Multiple Choice | a. true, b. false | a |
12,692 | NDQ_013419 | buoyancy of fluids | The amount of water that is displaced when you submerge yourself in a swimming pool is equal to your bodys | null | null | Multiple Choice | a. surface area., b. volume., c. weight., d. mass. | b |
12,693 | NDQ_013420 | buoyancy of fluids | The weight of the displaced water in question 3 equals the | null | null | Multiple Choice | a. force of gravity acting on your body., b. buoyant force acting on your body., c. weight of your body., d. two of the above | b |
12,694 | NDQ_013421 | buoyancy of fluids | Helium balloons float in air because helium is purer than air. | null | null | Multiple Choice | a. true, b. false | b |
12,695 | NDQ_013422 | buoyancy of fluids | The buoyant force acting on an object in a fluid always equals the objects weight. | null | null | Multiple Choice | a. true, b. false | b |
12,696 | NDQ_013423 | buoyancy of fluids | What happens if an object is placed in water and its density is greater than water? | null | null | Multiple Choice | a. The object always sinks., b. The object always floats., c. The object may sink or float., d. The objects density decreases. | c |
12,697 | NDQ_013425 | buoyancy of fluids | Archimedes determined that the mass of fluid displaced by an object equals the mass of the object. | null | null | Multiple Choice | a. true, b. false | b |
12,698 | NDQ_013426 | buoyancy of fluids | The more fluid an object displaces, the greater the buoyant force acting on the object. | null | null | Multiple Choice | a. true, b. false | a |
12,699 | NDQ_013428 | buoyancy of fluids | Buoyancy is a property of an object that can float in a fluid. | null | null | Multiple Choice | a. true, b. false | b |
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