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When you compare the mass of the products to the mass of the reactants in a fission reaction, what do you find? (Note the question is asking about mass, not mass number.)

The next two questions deal with this situation: In one early experiment that helped determine the structure of matter, alpha particles were shot at a thin sheet of gold foil. The particles were detected on a screen that could be moved about the room.

Which of these is a correct comparison of metals and semi-conductors?

Which of the cars has the largest kinetic energy at time 4?

 According to Dr. Kowallis, how are the destructions described in 3 Nephi best explained?

How does the momentum of the dynamite before the explosion compare to the total momentum of all of the pieces immediately after the explosion?

How do the speed and acceleration of the hammer compare with those of the nail at any given time after they are dropped?

See figure 1 in the problem above. If the single slit that produced the image at the top is made narrower, what will happen to the area of red light on the screen seen in the top image?

As the block from the problem above is pushed deeper into the water, what happens to the pressure on the bottom surface of the block?

When the dynamite explodes, what happens to its mass?