PHYS 101 - Professor Marshall, Liberty
University - Exam 2
How many different elements are in a water molecule? - ANS Two
Which of these atoms have the most mass? - ANS Uranium
Brownian motion has to do with the... - ANS Random motions of atoms and molecules
If two protons are removed from an oxygen nucleus, the result is - ANS Neon
The air in this room has: - ANS mass, weight, and energy
In our part of the universe, antimatter is - ANS short-lived
The volume of matter comes mostly from its: - ANS electrons
Which of the following are electrically neutral? - ANS Neutrons
Which of the following is not a mixture? - ANS Water
If one neutron is added to a helium nucleus, the result is - ANS Helium
If a loaf of bread is compressed its density... - ANS increases
If the volume of an object were to double while its mass stays the same, its density would: -
ANS halve
When weight is applied to the top of a stone arch, all of the stone blocks in the arch undergo -
ANS compression
When a load is placed on the middle of a horizontal beam supported at each end, the bottom
part of the beam undergoes - ANS tension
A strong spring is stretched 10 cm by a suspended weight. IF the weight is doubled, the spring
will stretch... - ANS another 10 cm, making the total stretch 20 cm
You wish to bolt a sign to a horizontal I-beam supporting a bridge. You will weaken the beam
least if you drill the bolt-holes through the - ANS web
A kilogram of peaches have more skin area than a kilogram of - ANS Grapefruits
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