Motion and Forces
... direction of the greater force. When a train moves along a straight track, the force from the engine moves the train forward. The force of friction between the wheels and the track is equal in size to the engine’s force, but in the opposite direction. The forces acting on the train are balanced. The ...
... direction of the greater force. When a train moves along a straight track, the force from the engine moves the train forward. The force of friction between the wheels and the track is equal in size to the engine’s force, but in the opposite direction. The forces acting on the train are balanced. The ...
College Physics (Etkina) Chapter 2 Newtonian Mechanics 2.1
... 31) A 75-N box rests on a perfectly smooth horizontal surface. The minimum force need to start the box moving is A) 75 N. B) 7.5 N. C) 750 N. D) any horizontal force greater than zero. Answer: D Var: 1 32) The acceleration due to gravity is lower on the Moon than on Earth. Which one of the followin ...
... 31) A 75-N box rests on a perfectly smooth horizontal surface. The minimum force need to start the box moving is A) 75 N. B) 7.5 N. C) 750 N. D) any horizontal force greater than zero. Answer: D Var: 1 32) The acceleration due to gravity is lower on the Moon than on Earth. Which one of the followin ...
CHAPTER 8 – APPLICATION OF FORCE
... 5 marks for five from : • Badminton shuttle struck gently - see figure AQ8.6a. • Here the weight is the predominant force. • Because the shuttle is moving slowly, air resistance is small. • Hence resultant force is almost that of the weight only. • And the flight is almost parabolic. • See fig ...
... 5 marks for five from : • Badminton shuttle struck gently - see figure AQ8.6a. • Here the weight is the predominant force. • Because the shuttle is moving slowly, air resistance is small. • Hence resultant force is almost that of the weight only. • And the flight is almost parabolic. • See fig ...
Review 2012
... A moving object collides with a stationary object; the stationary object has significantly less mass. The stationary object encounters the greater momentum change. Answer: ABF a. TRUE- In any collision between two objects, the colliding objects exert equal and opposite force upon each other. This is ...
... A moving object collides with a stationary object; the stationary object has significantly less mass. The stationary object encounters the greater momentum change. Answer: ABF a. TRUE- In any collision between two objects, the colliding objects exert equal and opposite force upon each other. This is ...
Questions - TTU Physics
... FP = 62 N using a cord making angle θ = 33º with the horizontal. There is no vertical motion. a. Sketch the free body diagram for the box, properly labeling all forces. Calculate the horizontal & vertical components of the force FP. b. Calculate the weight of the box & the normal force FN between it ...
... FP = 62 N using a cord making angle θ = 33º with the horizontal. There is no vertical motion. a. Sketch the free body diagram for the box, properly labeling all forces. Calculate the horizontal & vertical components of the force FP. b. Calculate the weight of the box & the normal force FN between it ...
Lecture4_Work_Proportions
... upper shelf (TWICE AS FAR) WORK? HALF What about: half as high? AS MUCH half the weight? WORK? ...
... upper shelf (TWICE AS FAR) WORK? HALF What about: half as high? AS MUCH half the weight? WORK? ...
simple harmonic motion and oscilation
... displaced to the right, the restoring force of the spring acting on the mass is directed to the left. Hence when it is released, the mass will move back to the left. In Fig 9.1(b), when the mass is at the point x=0, the restoring force of the spring =0, since F=kx. This point is called equilibrium p ...
... displaced to the right, the restoring force of the spring acting on the mass is directed to the left. Hence when it is released, the mass will move back to the left. In Fig 9.1(b), when the mass is at the point x=0, the restoring force of the spring =0, since F=kx. This point is called equilibrium p ...
CP Physics - North Union Local Schools
... there is a constant net force that is always directed at right angles to the direction in motion toward the center of the circle. In this case, the net force causes an acceleration that shows up as a change in direction. If the force is removed, the object will continue in a straight-line path. The ...
... there is a constant net force that is always directed at right angles to the direction in motion toward the center of the circle. In this case, the net force causes an acceleration that shows up as a change in direction. If the force is removed, the object will continue in a straight-line path. The ...
Chapter 02 Motion
... 15. Gravity is an attractive force between A. all massive objects. B. Earth and objects on Earth. C. Earth and Moon, and objects on Earth. D. all objects everywhere. ...
... 15. Gravity is an attractive force between A. all massive objects. B. Earth and objects on Earth. C. Earth and Moon, and objects on Earth. D. all objects everywhere. ...
INTO THE PAGE
... Suddenly, the electric field is turned off, so only the force due to the magnetic field remains. The proton does not travel in a straight line, but is deflected by the magnetic force. e) (5%) The direction in which the proton is deflected is: (Circle the correct answer.) ...
... Suddenly, the electric field is turned off, so only the force due to the magnetic field remains. The proton does not travel in a straight line, but is deflected by the magnetic force. e) (5%) The direction in which the proton is deflected is: (Circle the correct answer.) ...
Midterm Exam 3
... 1. This examination is closed book and closed notes. All your belongings except a pen or pencil and a calculator should be put away and your bookbag should be placed on the floor. 2. You will find one page of useful formulae on the last page of the exam. 3. Please show all your work in the space pro ...
... 1. This examination is closed book and closed notes. All your belongings except a pen or pencil and a calculator should be put away and your bookbag should be placed on the floor. 2. You will find one page of useful formulae on the last page of the exam. 3. Please show all your work in the space pro ...
Chapter 9 Problems - University of Colorado Colorado Springs
... makes an elastic head-on collision with the nucleus of a carbon atom initially at rest. (a) What fraction of the neutron's kinetic energy is transferred to the carbon nucleus? (b) If the initial kinetic energy of the neutron is 1.60 10–13 J, find its final kinetic energy and the kinetic energy of ...
... makes an elastic head-on collision with the nucleus of a carbon atom initially at rest. (a) What fraction of the neutron's kinetic energy is transferred to the carbon nucleus? (b) If the initial kinetic energy of the neutron is 1.60 10–13 J, find its final kinetic energy and the kinetic energy of ...
Inclined Planes and Work
... Inclined Planes, Work, Mechanical Advantage and Efficiency In this lab, you will explore work and mechanical advantage of an inclined plane. Machines help us do work by multiplying the force that we apply or by changing the direction of the force. Inclined planes multiply our applied force. The amou ...
... Inclined Planes, Work, Mechanical Advantage and Efficiency In this lab, you will explore work and mechanical advantage of an inclined plane. Machines help us do work by multiplying the force that we apply or by changing the direction of the force. Inclined planes multiply our applied force. The amou ...
Astronomy
... Science of Speed – Friction and Heat http://www.youtube.com/watch?v=T0mVBeYGco0 Science of the Winter Olympics: Science Friction http://science360.gov/obj/video/89c70f56-888546a0-9997-82ebfa025127/science-winterolympics-science-friction Tennis Coefficient of Restitution and Friction http://www.youtu ...
... Science of Speed – Friction and Heat http://www.youtube.com/watch?v=T0mVBeYGco0 Science of the Winter Olympics: Science Friction http://science360.gov/obj/video/89c70f56-888546a0-9997-82ebfa025127/science-winterolympics-science-friction Tennis Coefficient of Restitution and Friction http://www.youtu ...
Question 1 - RobboPhysics
... Fraction dissipated = 5200/6800 = 0.7647 Question 8 In an impact the bead's momentum is reduced to zero and transferred to the earth. Its kinetic energy is dissipated. The impulse, which is equal to the change in momentum, and the work done, which is equal to the change in KE, will be the same regar ...
... Fraction dissipated = 5200/6800 = 0.7647 Question 8 In an impact the bead's momentum is reduced to zero and transferred to the earth. Its kinetic energy is dissipated. The impulse, which is equal to the change in momentum, and the work done, which is equal to the change in KE, will be the same regar ...