1. E = mc² stands for:
Energy = matter multiplied by the speed of light squared.
Energy = mass multiplied by electric charge squared.
Energy = mass multiplied by the speed of light squared.

2. Einstein
should have patented E = mc² – he could have made a bomb.
derived E = mc² from his theory of general relativity.
derived E = mc² from his theory of special relativity.

3. Energy can be measured in units of:
joules.
watts.
newtons.

4. If you are having a conversation on a mobile (cell) phone a little distance from a friend, but in the same room, you will generally hear his/her voice:
across the room before hearing it on the phone.
on the phone before you hear it across the room.
from across the room and through the phone simultaneously.

5. When Uranium-235 undergoes fission, it can emit:
3 free protons.
3 free neutrons.
3 free croutons.

6. A watt is:
a measure of energy.
a measure of force.
a measure of power.

7. E = mc² violates:
the law of the conservation of energy.
the law of the conservation of mass.
Neither of the two laws above.

8. The isotope used in induced uranium fission is:
any isotope of uranium.
uranium-235.
uranium-238.

9. The Sun produces energy at its core by a process of:
Nuclear fusion.
Nuclear fission.
Nuclear fashion.

10. A consequence of Einstein’s special relativity is that:
mass can be converted into energy, but not the other way around.
energy can be converted into mass, but not the other way around.
mass and energy can be converted into each other.