Forces on an incline plane review sheet

1 Forces on an incline plane review sheet 2018 Name: an unbalanced force of 12 newtons acts on a6-kilogram mass, the acceleration of the mass isA. m/sec2B. 2 m/sec2C. 10 m/sec2D. 72 lamp placed on a table has a mass of2 kilograms. If it has a weight of 20 newtons,what force does the table exert on the lamp?A. 0 newtonsB. 2 kilogramsC. 20 newtonsD. 40 graph best represents the relationshipbetween the unbalanced force applied to a bodyand the body's acceleration? object is acted upon by a constant unbalancedforce. Which graph best represents the motion ofthis object? a laboratory exercise, a student collected thefollowing data as the unbalanced force applied toa body of massMwas TableForce(newtons)Acceleration(m/sec2) the information and the data table constructa ) Label the axes of the graph with theappropriate values for force and ) Plot an acceleration versus force graph forthe laboratory data ) Using the data or your graph, determinethe mass,M, of the body.

2 [Show allcalculations.] the diagram shown, surfaceAof the woodenblock has twice the area of surfaceB. If it takesFnewtons to keep the block moving at constantspeed across the table when it slides on surfaceA,what force is needed to keep the block moving atconstant speed when it slides on surfaceB? graph best represents the relationshipbetween the masses of di erent objects and thegravitational force acting on them as they fallfreely near the Earth's surface? 2 Forces on an incline plane review sheet aluminum block weighing 20 newtons, slidingfromleft to rightin a straight line on a horizontalsteel surface, is acted on by a frictionforce. The block will be brought to rest by thefriction force in a distance of 10 ) On the diagram of the block, draw an arrowto identify the direction ofeachforce actingon the block while it is still moving, but isbeing slowed by the friction force.

3 Identifyeachforce by appropriately labeling the arrowthat represents its line of direction. Pen orpencil may be used for your nal ) Determine the magnitude of the accelerationof the block as it is brought to rest by thefriction force. [Show all work.] force of 50 newtons causes an object toaccelerate at 10 meters per second squared. Whatis the mass of the object?A. 500 kgB. 60 kgC. kgD. kg10. A cart rolls down an inclined plane with constantspeed as shown in the diagram. Which arrowrepresents the direction of the frictional force? object in outer space is attractedto a nearby planet with a net force of 400 is the magnitude of the object's acceleration?A. m/s2B. m/s2C. m/s2D. 2,000 m/s2page 3 Forces on an incline plane review sheet 201812.

4 The table lists the coe cients of kinetic frictionfor four materials sliding over steel. A 10-kilogramblock of each of the materials in the table ispulled horizontally across a steel oor at constantvelocity. Which block would require thesmallestapplied force to keep it moving at constantvelocity?A. aluminumB. brassC. copperD. steelMaterial kaluminum0:47brass0:44copper0:36steel0:5 713. In the graph shown, the acceleration of an objectis plotted against the unbalanced force on theobject. What is the object's mass?A. 1 kgB. 2 kgC. kgD. kg14. The diagram represents a car resting on a vector best represents the weight of the car? In the diagram, boxMis on a frictionless tablewith ForcesF1andF2acting as shown.

5 If themagnitude ofF1is greater than the magnitude ofF2, then the box isA. moving with a constant speed in the directionofF1B. moving with a constant speed in the directionofF2C. accelerating in the direction ofF1D. accelerating in the direction ofF2page 4 Forces on an incline plane review sheet 201816. The diagram shown represents a force acting atpointP. Which pair of concurrent Forces wouldproduce equilibrium when added to the forceacting at pointP? graph pictured shows the relationship betweenweight and mass for a series of objects. The slopeof this graph representsA. change of positionB. normal forceC. momentumD. acceleration due to gravity18. Each diagram shows a di erent block beingpunched by a force across a surface at a constantvelocity.

6 In which two diagrams is the force offriction the same? 5 Forces on an incline plane review sheet 201819. A box decelerates as it moves to the right alonga horizontal surface, as shown in the vector best represents the force of frictionon the box?A.#B."C. !D. 20. The weight of an apple is closest toA. 10 2NB. 100NC. 102ND. Forces are applied to a block ona frictionless, horizontal surface, as shown in thediagram. The acceleration of the block isA. m/s2to the rightB. m/s2to the leftC. m/s2to the rightD. m/s2to the left22. As shown in the diagram, an in ated balloonreleased from rest moves horizontally withvelocityv. The velocity of the balloon is mostlikely caused byA. action-reactionB.

7 Centripetal forceC. gravitational attractionD. rolling friction23. A horizontal force is used to pull a at a constant speed of meters per secondacross the oor, as shown in the diagram. If theforce of friction between the cart and the oor is10 newtons, the magnitude of the horizontal forcealong the handle of the cart isA. NB. 10 NC. 25 ND. 50 Npage 6 Forces on an incline plane review sheet 201824. A 150-newton force,F1, and a 200-newton force,F2, are applied simultaneously to the samepoint on a large crate resting on a frictionless,horizontal surface. Which diagram shows theforces positioned to give the crate the greatestacceleration? In the diagram shown, surfaceBof the woodenblock has the same texture as surfaceA, but twicethe area of forceFis required to slide the block at constantspeed across the table on surfaceA, approximatelywhat force is required to slide the block at constantspeed across the table on surfaceB?

8 4F26. Base your answer to the following question onthe information and vector diagram shown. Thediagram is provided for practice purposes 20-newton force due north and a 40-newtonforce due east act concurrently on a 10-kilogramobject, located at the magnitude of the acceleration ofthe object. [Show all calculations, including theequation and substitution with units.]27. A block weighing 49 newtons sits ona frictionless, horizontal surface. A horizontalforce of 20 newtons toward the right is applied tothe block. [Neglect air resistance.]On the diagram,on your answer paper, drawa vector to represent each of thethreeforcesacting on the block. Use a ruler and a scale of1:0 centimeter = 10 newtons. Begin each vector atpoint C and label its magnitude in newtons.

9 Thediagram is to be used for practice purposes sure your nal answer appearson your 7 Forces on an incline plane review sheet 201828. Calculate the magnitude of the acceleration ofthe block. [Show all calculations, including theequation and substitution units]29. In the accompanying diagram, a force,F, isapplied to the handle of a lawnmower inclined atangle to the magnitude of the horizontal component offorceFdepends onA. the magnitude of forceF, onlyB. the measure of angle , onlyC. both the magnitude of forceFand themeasure of angle D. neither the magnitude of forceFnor themeasure of angle 30. The accompanying diagram shows a held at rest on a frictionless incline is the approximate magnitude of forceF?

10 A. NB. NC. ND. accompanying diagram shows a block slidingdown a plane inclined at angle with angle is increased, the coe cient of kineticfriction between the bottom surface of the blockand the surface of the incline willA. decreaseB. increaseC. remain the samepage 8 Forces on an incline plane review sheet 201832. Three Forces act on a box on an inclined plane asshown in the diagram. [Vectors are not drawn toscale.]If the box is at rest, the net force acting on it isequal toA. the weightB. the normal forceC. frictionD. zero33. In the diagram below, a block is atrest on a plane inclined at 15 to the the angle of the incline is increased to 30. ,the mass of the block willA. decreaseB.