| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.SL.TZ0.10 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 10 | Adapted from | N/A |
Question
A driving force F acts on a car which moves with constant velocity v. The quantity Fv is equivalent to the
A. useful power developed by the engine of the car.
B. work done by the car against resistive forces.
C. energy of the car.
D. rate of change of momentum of the car.
Markscheme
A
Examiners report
Looking at the units helps here: with force in N and velocity in ms-1 the product will be in Nms-1 or Js-1 that is, W; so the correct response must be power.
Syllabus sections
Show 59 related questions
- 17N.1.SL.TZ0.7: A system that consists of a single spring stores a total elastic potential energy Ep when a...
- 17M.2.SL.TZ2.1c: The cable is pulled by an electric motor. The motor has an overall efficiency of 23 %....
- 17M.2.SL.TZ1.1a.i: From A to B, 24 % of the gravitational potential energy transferred to kinetic energy. Show...
- 17M.1.HL.TZ1.5: A horizontal spring of spring constant k and negligible mass is compressed through a distance...
- 17M.1.SL.TZ2.7: The efficiency of an electric motor is 20 %. When lifting a body 500 J of energy are...
- 17M.1.SL.TZ2.6: The initial kinetic energy of a block moving on a horizontal floor is 48 J. A constant...
- 17M.1.SL.TZ1.8: A car travelling at a constant velocity covers a distance of 100 m in 5.0 s. The thrust of...
- 17M.1.SL.TZ1.7: A graph shows the variation of force acting on an object moving in a straight line with...
- 17M.1.SL.TZ1.15: Two pulses are travelling towards each other. What is a possible pulse shape when the...
- 16M.2.SL.TZ0.1a: (i) The block arrives at C with a speed of 0.90ms−1. Show that the elastic energy stored in...
- 16N.1.HL.TZ0.7: An object of mass 2kg is thrown vertically downwards with an initial kinetic energy of 100J....
- 16N.1.SL.TZ0.7: A student of weight 600N climbs a vertical ladder 6.0m tall in a time of 8.0s. What is the...
- 16N.1.SL.TZ0.5: An object, initially at rest, is accelerated by a constant force. Which graphs show the...
- 16M.1.SL.TZ0.9: The graph shows how the acceleration a of an object...
- 16M.1.SL.TZ0.8: A train on a straight horizontal track moves from rest at...
- 16M.1.SL.TZ0.7: A ball with mass m moves horizontally with speed u. The ball hits a...
- 16M.1.SL.TZ0.6: A spring of negligible mass and length l0 hangs from a fixed point. When a...
- 16M.1.SL.TZ0.5: A stone is falling at a constant velocity vertically down a tube filled with oil....
- 15M.1.HL.TZ2.4: A girl is standing on a moving skateboard. She pushes backwards on the ground at intervals as...
- 14M.1.HL.TZ2.5: A truck is pulled up an inclined plane at constant speed by an electric motor. The gain in...
- 14M.2.SL.TZ1.6c: Euan is rotating on a merry-go-round and drags his foot along the ground to act as a brake....
- 15N.1.SL.TZ0.7: A heat engine does 300 J of work during one cycle. In this cycle 900 J of energy is wasted....
- 15N.1.SL.TZ0.6: An object of mass \(m\) is initially at rest. When an impulse \(I\) acts on the object its...
- 14N.1.SL.TZ0.8: A metal sphere is at rest on a bench. According to Newton’s third law of motion, what is a...
- 14N.1.SL.TZ0.7: An object of mass m1 has a kinetic energy E1. Another object has a mass m2 and kinetic energy...
- 14N.2.SL.TZ0.4a: Outline the meaning of work.
- 14N.2.SL.TZ0.4b.i: Calculate the work done on the ship by the kite when the ship travels a distance of 1.0 km.
- 14N.2.SL.TZ0.4c: The kite is taken down and no longer produces a force on the ship. The resistive force \(F\)...
- 14N.2.SL.TZ0.4b.ii: Show that, when the ship is travelling at a speed of \({\text{8.5 m}}\,{{\text{s}}^{ - 1}}\),...
- 14M.2.HL.TZ2.9e: (i) Calculate the volume of fuel injected into one cylinder during one cycle. (ii) ...
- 14M.2.HL.TZ2.9f: A car accelerates uniformly along a straight horizontal road from an initial speed of...
- 14M.2.SL.TZ2.6a: A car accelerates uniformly along a straight horizontal road from an initial speed of...
- 13N.1.SL.TZ0.6: In an inelastic collision A. momentum and kinetic energy are both conserved.B. momentum is...
- 13M.1.HL.TZ1.3: Which of the following is always true for an object moving in a straight line at constant...
- 12M.1.SL.TZ1.6: A block of mass m is moving at constant velocity v along a frictionless surface that is...
- 13M.2.SL.TZ1.4a: (i) Describe the energy changes that take place in the club head from the instant the club is...
- 12M.1.SL.TZ2.6: A student makes three statements about situations in which no work is done on an object. I....
- 12M.1.SL.TZ2.7: A block is attached to a stretched spring and then released. It moves from X to Y along...
- 13M.2.SL.TZ1.4b: The diagram shows the deformation of a golf ball and club head as they collide during a...
- 11M.1.SL.TZ2.8: The graph shows the variation with force F of the...
- 13M.1.SL.TZ2.6: The graph shows the variation with distance x of the magnitude of the net force F acting on a...
- 12M.2.SL.TZ2.6d: A railway truck on a level, straight track is initially at rest. The truck is given a...
- 11M.2.SL.TZ2.8c: ...
- 11N.2.SL.TZ0.4c: The constant horizontal velocity of the railway engine is 16 ms–1. A total horizontal...
- 11N.2.SL.TZ0.9b: The electric motor can be adjusted such that, after an initial acceleration, the load moves...
- 12N.2.SL.TZ0.4b: Gravel falls vertically onto a moving horizontal conveyor belt. (i) The gravel falls at a...
- 12N.2.SL.TZ0.4c: The conveyor belt moves with a constant horizontal speed of 1.5 m s–1. As the gravel lands on...
- 13N.2.SL.TZ0.6d: The locomotive engine in (c) gives a truck X a sharp push such that X moves along a...
- 13N.2.SL.TZ0.6c: The maximum useful power output of a locomotive engine is 0.75 M W. The maximum speed of the...
- 11M.1.SL.TZ1.8: A nuclear power station produces 10 GW of electrical power. The power generated by the...
- 11M.1.SL.TZ1.7: A brother and sister take the same time to run up a set of steps. The sister has a greater...
- 11M.2.SL.TZ1.6c: After 10 s the ball has fallen 190 m. (i) Show that the sum of the potential and kinetic...
- 09M.1.SL.TZ1.7: A lift (elevator) is operated by an electric motor. It moves between the...
- 10M.1.HL.TZ1.5: Which of the following is a correct definition of work? A. Product of force and...
- 09N.1.SL.TZ0.7: A vehicle is driven up a hill at constant speed. Which of the following best describes the...
- 10N.1.SL.TZ0.5: A ball falls vertically and bounces off the ground. Immediately before impact with the ground...
- 09N.1.SL.TZ0.8: A rubber ball, travelling in a horizontal direction, strikes a vertical wall. It rebounds at...
- 10N.1.SL.TZ0.6: A railway engine of mass m moves along a horizontal track with uniform speed \(v\). The total...
- 10N.2.SL.TZ0.B3Part2.c: Discuss the energy transformations that occur in the clay block and the air-rifle pellet from...
