What energy transformation takes place when the skater rolls uphill with friction?
A. kinetic energy to potential energy and thermal energy
B. Potential energy to kinetic energy and thermal energy
C. kinetic energy to thermal energy
D. Potential energy to kinetic energy
E. kinetic energy to potential energy
The skater has a mass and moves at a certain speed, in this case he has a kinetic energy. When it begins to climb the slope, the skater begins to move up with a certain inclination, in this case part of the kinetic energy is transformed into potential energy. The ascent by the slope is realized with a friction between the skater and the surface, in this case part of the kinetic energy is transformed into thermal energy. The correct option is the option a
A. kinetic energy to potential energy and thermal energy
What energy transformation takes place when the skater rolls uphill with friction? A. kinetic energy to...
What kind of energy transformation occurs when a rock falls, including air resistance? a. Kinetic energy is converted to gravitational energy and thermal energy: energy is conserved. b. Gravitational potential energy is converted to kinetic energy: energy is not conserved. OC. Gravitational potential energy is converted to kinetic energy and thermal energy: energy is conserved. d. Thermal energy is converted to gravitational energy: energy is not conserved.
Ignoring friction, the total energy of the skater is conserved. This means that the kinetic plus potential energy at one location, say E1=K1+U1, must be equal to the kinetic plus potential energy at a different location, say E2=K2+U2. This is the principle of conservation of energy and can be expressed as E1=E2. Since the energy is conserved, the change in the kinetic energy is equal to the negative of the change in the potential energy: K2❝K1=❝(U2❝U1), or ΝK1=❝ΝU2. Select the...
t View History Bookmarks People Window Help YS 1315 MW: × GATurning Fork Oscillates A × bike.dvi /tracs.txstate.edu/portal/site/081c75c uiz Ch 10: Energy Transformations 5-913a-4722-9c84-08433aaea16f/tool/87e46ed1 ew unanswered or marked questions art 1 of 1- 1.0 Points Question 1 of 3 Use the PHET simulation Energy Skate Park: Basics which is embedded in this lesson. use the Friction app in the middle . in the right menu check the box for Bar Graph in the right menu vary the friction a) What...
A coin falling through a vacuum loses no energy to friction, and yet after it hits the ground it has lost all its potential and kinetic energy. Which statement best explains why the law of conservation of energy is still valid in this case? A.) When the coin hits the ground, the ground gains potential energy that quickly changes to thermal energy. B.) When the coin hits the ground, the ground gains kinetic energy that quickly changes to thermal energy....
9.An ice skater extends her arms as quickly turns on itself. Does your kinetic energy is conserved? Does your mechanical energy is conserved? Does your angular momentum is conserved? (Neglect friction in the range of time it takes to extend the arms.) If any of these magnitudes is not retained say whether increases or decreases.
1) How much kinetic energy does a proton gain if it is accelerated, with no friction, through a potential difference of 1.00 V? The proton is 1836 .60 x 10-19 C A) 1836 ev B) 1.00 eV C) 1.60 x 10-19 eV D) 1.00J E) 1836J times heavier than an electron, and e = 1
In the Energy Transformation experiment, suppose that you launch the cart uphill from the bottom of the track with a certain initial speed. You now put in a taller riser block and repeat the experiment using the same initial speed of the cart. How will using a taller riser block affect the maximum distance that the cart travels along the track? Select one: a. The cart will travel a greater distance with the taller block O b. The cart will...
Suppose there is no friction on a roller coaster, a man of 80 Kg mass decides to skate on this roller coaster, the man is located at the highest point that is 32 m high, wants to get a speed record when he arrives to the lowest point. Determine: a) How much is the mechanical energy at the highest point, and still not moving? b) How much is the mechanical energy at the lowest point of the roller coaster? c)...
what takes place a molecule when it absorbs infrared energy?
Question 4 -Work-Energy Theorem Roller coasters operate on the principle of energy transformation Inbaly the system is at down the track a) What is the energy stored in the system? e the Potential Energy? Kinetic Energy, and Total Mechanical Energy, for each poghon A B. C. D. E.F. Gin the toure Postion Ais a height H above the ground,postion D is at a height t c) Use the conservation of energy to determine t d) White the equation for the...