Drag the tiles to the correct boxes to complete the pairs. match each form of energy to its description. motion energy thermal energy gravitational potential energy chemical energy nuclear energy sound energy stored energy related to positions of atoms within molecules arrowright energy released when a nucleus splits or combines arrowright energy related to an object’s movement arrowright energy related to height arrowright energy generated by vibration of a string arrowright energy of motion of particles in a substance arrowright

motion energy : energy related to an object’s movement

thermal energy : energy of motion of particles in a substance  

gravitational potential energy :  energy related to height

chemical energy :stored energy related to positions of atoms within molecules

nuclear energy : energy released when a nucleus splits or combines

sound energy : energy generated by vibration of a string

Explanation: Motion energy is also called as kinetic energy and it is defined as the energy possessed by an object due to its motion.

Thermal energy is the measure of total kinetic energy of the particles in a substance. The greater the motion of particles, the higher is the temperature of the substance and thermal energy.

Potential energy is defined as the energy possessed by an object due to its position or height.

Chemical energy is the energy stored in the bonds of the molecules.

Nuclear energy is the energy possessed in the form of binding energy which held the protons and neutrons together in the nucleus.

Sound energy is  the energy possessed by an object by virtue of vibration of matter.

what is the question?

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

read more on -