Answer:
To explain the energy of two blocks, several types of evidence can be used depending on the context and the specific question being asked. Here are some examples:
Kinetic energy: The kinetic energy of a moving object is given by the formula KE = 0.5 * m * v^2, where m is the mass of the object and v is its velocity. If the two blocks are moving, their kinetic energy can be calculated using this formula.
Potential energy: The potential energy of an object is the energy it possesses by virtue of its position or configuration. If the two blocks are lifted to a certain height, they will possess potential energy due to their position in the Earth's gravitational field. The potential energy of an object is given by the formula PE = m * g * h, where m is the mass of the object, g is the acceleration due to gravity, and h is the height above a reference point.
Work done: If a force is applied to move the two blocks, work is done on them. The work done on an object is given by the formula W = F * d, where F is the force applied, and d is the distance over which the force is applied.
Conservation of energy: The law of conservation of energy states that energy cannot be created or destroyed, only converted from one form to another. Therefore, if the energy of the two blocks changes, it must be due to the transfer of energy from one form to another, such as from potential energy to kinetic energy or vice versa.
Overall, the evidence used to explain the energy of two blocks will depend on the specific context of the question being asked and the type of energy being considered.