1. Equations are used to (Points: 3)
describe a property.
define a concept.
describe how quantities change together.
All of the above.
2. Which one of the following is not a fundamental property? (Points: 3)
length
weight
time
mass
3. Suppose a cube of jello is cut into two pieces. What property stays the same comparing the original piece with one of the new pieces? (Points: 3)
mass
volume
density
surface area
4. The property of volume is a measure of (Points: 3)
how much matter an object contains.
the compactness of matter in a given space.
the extent of the surface of an object.
how much space an object occupies.
5. The basic means of acquiring understanding in the sciences is (Points: 3)
logical, well thought out conclusions.
thinking about facts you can observe.
experimental evidence.
defined by a series of five steps called the scientific method.
6. Imagine a 10 g chunk of aluminum (density = 2.7 g/cm3) and a 10 g chunk of iron (density = 7.9 g/cm3). Which of the following is true? (Points: 3)
The chunk of iron is smaller than the chunk of aluminum.
The chunk of iron is more massive than the chunk of aluminum.
The chunk of aluminum is smaller than the chunk of iron.
Both objects have the same volume.
7. The speed calculated from the distance traveled during an entire trip and the elapsed time is a (an) (Points: 3)
average speed.
instantaneous speed.
final speed.
constant speed.
8. Ignoring air resistance, the velocity of a falling object (Points: 3)
is constant.
is constantly increasing.
increases for a while, then becomes constant.
depends on the mass of the object.
9. A cannonball is fired straight up at 50 m/s. Neglecting air resistance, when it returns to its starting point, its speed is (Points: 3)
50 m/s.
more than 50 m/s.
less than 50 m/s.
It depends on how long it is in the air.
10. The newton is a unit of (Points: 3)
motion.
energy.
power.
force.
11. The pound is an English unit of measure; its SI counterpart is the (Points: 3)
newton
kilogram.
joule.
momentum.
12. A block of iron is transported to the moon. Which of the following is true? (Points: 3)
Both the mass and weight remain unchanged.
The mass decreases, but the weight remains the same.
The mass remains the same, but the weight decreases.
Both the mass and weight decrease.
13. A heavy object and a light object are dropped from rest at the same time in a vacuum. The heavier object will reach the ground (Points: 3)
before the lighter object.
at the same time as the lighter object.
after the lighter object.
It depends on the shape of the object.
14. The watt (W) is a unit of (Points: 3)
work.
electrical energy.
power.
force.
15. When you throw a ball into the air, its kinetic energy (Points: 3)
equals 1/2 mv2.
equals the work you did on the ball when you threw it.
is converted to potential enrgy as it goes higher.
All of the above.
16. The important variables in gravitational potential energy are the weight of an object and the (Points: 3)
distance to the floor.
height above the earth's surface.
change of position.
None of the above.
17. The rate at which work is done is (Points: 3)
power.
momentum.
potential energy.
kinetic energy.
18. 
A pendulum is pulled back to position a, then released. Where is its kinetic energy the maximum? (Points: 3)
a
b
c
d
19. Molecules in a solid (Points: 3)
are harder than molecules in liquids or gases.
transfer heat to their neighbors by a process called convection.
have no internal energy because they are not moving around.
are held in nearly fixed positions by strong attractive forces.
20. A gas that is usually found in the liquid phase is called a (Points: 3)
vapor.
plasma.
fluid.
wet gas.
21. The transfer of heat that occurs when energy moves from molecule to molecule is called (Points: 3)
convection.
conduction.
radiation.
phase change.
22. The specific heat of copper is roughly three times as great as the specific heat of gold. Which of the following statements is true? (Points: 3)
If the same amount of heat is applied to equal masses of gold and copper, the copper will get hotter.
Copper heats up three times as fast as gold.
A piece of copper stores three times as much heat as the same mass of gold at the same temperature.
The melting temperature of copper is roughly three times that of gold.
23. Which temperature scale does not have arbitrarily assigned reference points? (Points: 3)
Fahrenheit
Celsius
Kelvin
None of the above.
24. What type of chemical bond does the sharing of a pair of electrons create? (Points: 3)
covalent.
ionic.
metallic.
double.
25. The outer electrons of an atom that participate in chemical bonding are called the ___________ electrons. (Points: 3)
reactant
valence
net
product.
26. Ionic bonds are formed when (Points: 3)
electrons are transferred from the excited to the ground state.
electrons are transferred from the ground state to the excited state.
electrons are transferred between atoms.
atoms share electrons.
27. The formation of an ionic bond (Points: 3)
involves a transfer of one or more electrons.
results in a release of energy.
helps atoms achieve a noble gas electron arrangement.
All of the above.
28. Electric field lines are drawn (Points: 3)
toward the positive test charge.
away from the positive test charge.
in such a way as to show the direction of the field.
radiating outward like the spokes on a wheel.
29. The ratio of work done to charge that is moved by a battery is a (an) (Points: 3)
ampere.
coulomb.
joule.
volt.
30. The electric field lines in the diagram below indicate that
(Points: 3)
1 is a (+) charge and 2 is a (-) charge.
both 1 and 2 are (+) charges.
1 is a (-) charge and 2 is a (+) charge.
both 1 and 2 are (-) charges.
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