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Mechanical energy is defined as


Question 1 options:


the energy of motion and position, which is represented by the formula KE + PE = ME



potential energy



Energy of motion



Energy of machines and tools


We know that potential energy is the stored energy in an object. In a stretched rubber band or compressed spring that stored energy is due to the objects tendency to return to its original shape, we call that elastic potential energy. What do you call the type of potential energy invested in an object by lifting it against the force of gravity?


Question 2 options:


ground energy



law of conservation of energy



power



gravitational potential energy


How can you increase the gravitational potential energy (GPE) of an empty shoe box on the bottom shelf of a bookcase?


Question 3 options:


all of the options listed here will increase the GPE



raise the box to a higher shelf



add items to the box to increase its mass



add items to the box and raise it to a higher shelf