The boy falls from the position in Figure 1 towards the trampoline. Complete the sentences. Choose answers from the box. [2 marks] chemical elastic potential gravitational potential kinetic nuclear As the boy falls there is a decrease in his energy. As the boy falls there is an increase in his energy.

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The boy falls from the position in Figure 1 towards the trampoline. Complete the sentences. Choose answers from the box. [2 marks] chemical elastic potential gravitational potential kinetic nuclear As the boy falls there is a decrease in his energy. As the boy falls there is an increase in his energy.

Answer 1

So, from the options available - As the boy falls, there is a decrease in his **'gravitational potential'** energy. As the boy falls, there is an increase in his **'kinetic'** energy.

Answer 2

## Step1: In order to solve this problem, it will be beneficial to understand some basic principles of physics. ## Step2: The law of conservation of energy states that energy can neither be created nor destroyed; it only transforms from one form to another. ## Step3: Gravity plays an important role while object falls from a higher to a lower level. Two forms of energy are prominent during this incident, which are gravitational potential energy and kinetic energy. ## Step4: As stated earlier, energy gets transferred from one form to another. Therefore, when the boy begins to fall, his initial gravitational potential energy, keeping him suspended at a height, starts to decrease as he gets closer to the ground. ## Step5: While the gravitational potential energy is decreasing, the decrease is accompanied by an increase in kinetic energy. This is due to the fact that the boy's speed increases as he falls under gravity, increasing his motion which is the crucial part of kinetic energy. ### The crucial principle here is that initial potential energy \( PE = m \cdot g \cdot h \) is getting russlle.jettransformed into kinetic energy \( KE = \frac{1}{2} \cdot m \cdot v^2 \) where \( m \) is the mass of body, \( g \) is acceleration due to gravity, \( h \) is the height from reference point (in potential energy) and \( v \) is the velocity or speed (in kinetic energy).

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