Question 1

Which of the following is least likely be categorized as“science”?

		Determining the qualities of a pigment used in a famouspainting
		Determining the age of the marble used to make a famousstatue
		Determining the aesthetic properties of a famous poem
		Determining the thickness of paper on which a work ofShakespeare was written

4 points

Question 2

You notice that when the parchment paper of an ancient documentis exposed to a certain chemical, the parchment paper becomes adifferent color. What have you done?

		used reason and the insight of your mind
		relied on received wisdom
		performed an experiment
		made an observation

4 points

Question 3

Which of the following is NOT out of place in the context of thescientific method?

		Strong reluctance to ever change a hypothesis
		Preconceptions affecting one’s observations
		Seeking irrefutable proof of one’s ideas
		Addressing questions with an open mind

4 points

Question 4

A scientific observation must be which of the following?

		Supportive of the hypothesis in question
		Previously unobserved
		Reproducible
		Unique

4 points

Question 5

Kepler’s first law of planetary motion says:

		Planets orbit the Earth along elliptical paths.
		Planets orbit the Sun along elliptical paths.
		Planets orbit the Sun along circular paths.
		Planets orbit the Earth within crystal spheres.

4 points

Question 6

Vectors are quantities with which of the followingproperties?

		Magnitude.
		Magnitude or direction
		Direction
		Magnitude and direction

4 points

Question 7

The measurement of how velocity is changing over a period oftime is called:

		Acceleration
		Velocity
		Speed
		Distance

4 points

Question 8

Which of the following is the best definition of energy?

		The ability to do work
		The amount of work in an object
		The measure of the force in an object
		The size of the force acting on an object

4 points

Question 9

Which of the following is NOT a kind of potential energy?

		Electrical
		Elastic
		Thermal
		Magnetic

4 points

Question 10

When a group of organisms get all their energy from the samesource, werefer to them as:

		an ecological niche.
		a tropic level.
		a natural biome.
		an ecological system.

4 points

Question 11

In science, heat is commonly measured in what unit?

		Calorie
		Degree
		Specific heat capacity
		Gallon

4 points

Question 12

The coldest possible temperature—absolute zero—is which of thefollowing?

		0oC
		-460oF
		-273oC
		0K

4 points

Question 13

Which one of the following is NOT a statement from the SecondLaw ofThermodynamics?

		Heat will not flow spontaneously from a cold to a hot body.
		Every Isolated system becomes more disordered with time.
		Living things must be able to absorb heat from their environmentby radiation.
		You cannot construct an engine that does nothing but convertheat to useful work.

4 points

Question 14

Which of the following is something common to both theelectrical force andthe gravitational force?

		They both have roughly the same relative strength.
		They both can only cause attraction between objects.
		Both of these are common features between the forces due toelectricity and gravity.
		Neither of these are common features between the electrical andgravitational forces.

4 points

Question 15

When electric charges are in motion, we have:

		a voltage.
		a battery.
		a wire.
		an electric current.

4 points

Question 16

An electric motor does which of the following?

		Converts heat into electrical energy and mechanical energy.
		Converts mechanical energy into electrical energy and heat.
		Converts electrical energy and heat into mechanical energy.
		Converts electrical energy to mechanical energy and heat.

4 points

Question 17

One significant difference between matter waves (such asearthquakes and sound waves and water waves) and electromagneticwaves is which of the following?

		Matter waves happen on larger scales.
		Electromagnetic waves don’t have detectable effects.
		Electromagnetic waves can travel through nothing at all.
		Matter waves involve some type of up-and-down motion.

4 points

Question 18

The nature of an electromagnetic wave is that:

		the electric field is parallel to the magnetic field and bothare perpendicular to the direction of propagation.
		the electric field is perpendicular to the magnetic field andboth are perpendicular to the direction of propagation.
		the electric and magnetic fields are parallel to each other andto the direction of propagation.
		the electric and magnetic fields are perpendicular to each otherand the electric field is parallel to the direction ofpropagation.

4 points

Question 19

The most energetic kind of electromagnetic radiation is which ofthe following?

		Infrared waves
		Microwaves
		Gamma rays
		X-rays

4 points

Question 20

If you use an electrical current to break down water, you getwhat two gases?

		hydrogen and oxygen
		carbon and dioxide
		carbon and oxygen
		hydrogen and carbon

4 points

Question 21

How is the organization of the Periodic Table of Elementsrelated to the number of electrons in the outermost shell ofatoms?

		Within a given row, all electrons are within the same shell.
		The electrons within elements in the leftmost column fill thelowest energy shells.
		A different column in the Periodic Table corresponds to adifferent shell.
		A different row in the Periodic Table corresponds to a differentshell.

4 points

Question 22

In the Rutherford model of the atom, electrons would not stay inorbit very long because they would spiral down into the nucleus.Yet, the Rutherford Model is similar to the planetary model of thesolar system. Why don’t the planets spiral down into the Sun?

		The gravitational force is much, much weaker than the electricalforce so the effectis virtually non-existent.
		Because the planets and Sun are much larger than electrons and anucleus.
		Unlike the gravitational force, the electrical force between twoobjects increases withtheir separation.
		Unlike electrons, planets are not accelerating and thereforedon’t emit energy in theform of radiation.

4 points

Question 23

When two atoms link up we call that:

		periodicity.
		a chemical bond.
		a noble gas.
		valence.

4 points

Question 24

Because of the distribution of electrical charges in metals,metals tend to be:

		malleable.
		dull (not shiny).
		electrically non-conductive.
		undesirable for industrial purposes.

4 points

Question 25

The covalent bond is like the ionic bond because of _________,and it is like the metallic bond because of __________.

		the sharing of electrons; the many atoms involved
		the relatively few number of atoms involved; the sharing ofelectrons
		the transfer of electrons from one atom to another; the manyatoms involved
		the few number of atoms involved; the transfer of electrons