the natural coalition of church and state writing homework help

QUESTION 1

A way of asking and answering questions about the physical universe is known as:

pseudoscience.

research.

the natural coalition of church and state.

laws of nature.

science.

2 points

QUESTION 2

Which statement is true about the discipline of science?

	Science is a complete set of facts about the physical world.
	Science provides answers to all questions about our environment.
	Science provides our best view to the workings of the universe and everything within it
	Science and intuition are mutually exclusive.
	Science encompasses all of pseudoscience and more.

2 points

QUESTION 3

Which of the following statements is a prediction?

	Mealworms prefer dark environments.
	High quality balloons filled with atmospheric air will float higher than low quality balloons filled with atmospheric air.
	Spearmint candies taste better than peppermint candies.
	If I drop a rock it will fall to the ground.
	There is an attraction called gravity between every two objects in the universe.

2 points

QUESTION 4

The scientific method depends on:

reproducible results.

clearly stated laws of nature.

accurate initial predictions.

fact-based hypotheses.

communication of findings.

2 points

QUESTION 5

Ockham’s razor is a(n):

	instrument used in medical studies.
	philosophy advocating that the simplest solutions have a higher probability of being correct.
	constellation in the southern hemisphere.
	example of pseudoscience.
	tool used in raising Stonehenge’s giant stones.

2 points

QUESTION 6

Dr. John Snow’s research and observations improved the lives of London’s citizens in the 1800s by:

	improving the quality of the drinking water.
	finding a cure for cholera.
	diagnosing tuberculosis in the Royal family.
	associating disease with polluted water.
	identifying the bacterium, Vibrio cholerae.

2 points

QUESTION 7

The astronomical model placing the Sun at the center of the solar system was resisted for hundreds of years because

	a way to measure astronomical distances with great accuracy had not been invented.
	errors in calculations of data analysis went undetected.
	most scholarly texts were written in Latin.
	the Catholic Church banned all discussions of Copernican ideas.
	all scientists used the great calendar at Stonehenge and looked no further.

2 points

QUESTION 8

From a physicist’s point of view, in which of the following cases has significant work been done?

	You try to pull your car out of ditch, but it doesn’t budge.
	Your brother throws his dirty clothes on the floor.
	Your mother holds a sleeping baby.
	You review for a test by imagining the questions.
	Your father tries unsuccessfully to open a jar.

2 points

QUESTION 9

James Watt designed experiments in horsepower to:

	assist miners in removing ore.
	calculate the velocity of a water pump.
	quantify the energy generated by a horse in mines.
	invent the steam engine.
	assess the health of horses.

2 points

QUESTION 10

Which of the following balls would have the greatest amount of kinetic energy if they are all traveling at 10 m/s?

baseball

ping pong ball

bowling ball

soccer ball

basketball

2 points

QUESTION 11

If one were to introduce a fast moving molecule into a container of slower moving molecules the outcome will be:

	the fast moving molecule will remain moving faster than the other molecules.
	all molecules will end up traveling the same speed.
	the fast moving molecule will end up traveling slower than the other molecules.
	all molecules will lose speed.
	all molecules will end up traveling the speed of the fast molecule.

2 points

QUESTION 12

Absolute zero is defined as the temperature at which:

	water will freeze.
	all heat has been extracted from a substance.
	the lowest temperature a substance can change from a liquid to a solid.
	all motion within an atom ceases.
	energy cannot exist.

2 points

QUESTION 13

Motors and magnets owe their existence to what force?

strong force

weak force

gravitational force

static electrical force

electromagnetic force

2 points

QUESTION 14

Coulomb discovered that the electrical force equation was very similar to the force equation ________ had discovered.

Benjamin Franklin

James Clerk Maxwell

Isaac Newton

Thomas Edison

Michael Faraday

2 points

QUESTION 15

The lines of force radiating from a charged object is called a/an:

gravitational field.

gravitational force.

electrical field.

electrical force.

magnetic field.

2 points

QUESTION 16

When you cut a magnet in half you get:

two north poles.

two south poles.

two magnets each with a north pole and south pole.

one magnetic monopole.

one south pole and one north pole.

2 points

QUESTION 17

What scientist is credited with making the first battery?

Luigi Galvani

Michael Faraday

Alessandro Volta

Benjamin Franklin

William Gilbert

2 points

QUESTION 18

Every electrical circuit contains:

an electromagnet.

an unbroken flow path.

an electric switch.

a circuit breaker.

a motor.

2 points

QUESTION 19

In the equation for Ohm’s law, resistance is in the unit:

volts.

amps.

ohms.

watts.

coulombs.

2 points

QUESTION 20

Individual particles in a transverse wave move:

perpendicular to the medium.

in large circles.

in small circles.

perpendicular to the wave direction.

parallel to the wave direction.

2 points

QUESTION 21

Bats navigate by emitting high pitched sound waves and

	killing all the moths within 10 meters.
	attracting various insects toward the sound.
	listening for an echo.
	calculating wave crests per second.
	hoping humans do not hear them.

2 points

QUESTION 22

What causes an electromagnetic wave to be emitted?

	writing an equation that has the wave form in it
	destructive interference of sound waves
	trying to separate electrical from magnetic phenomena
	acceleration of an electric charge
	constructive interference of any kind of wave

2 points

QUESTION 23

Which wave does not require matter to be transmitted?

ocean wave

sound wave

X-ray

seismic wave

subsonic wave

2 points

QUESTION 24

The fundamental difference between electromagnetic waves and other types of waves is that electromagnetic waves:

	move more slowly than all other types of waves.
	are invisible regardless of wavelength.
	do not experience constructive or destructive interference.
	transfer energy without transferring mass.
	all have the same wavelength.

2 points

QUESTION 25

Which property of electromagnetic waves is measured in Hertz?

amplitude

speed

frequency

length

energy

2 points

QUESTION 26

How fast can light travel in one second, if it is moving through a vacuum?

186,000 feet

30,000 meters

18,600 miles

300,000 kilometers

3,000,000 miles

2 points

QUESTION 27

The Doppler effect describes:

	how bats fly and locate their food.
	change in wave frequency when source or receiver is moving.
	change in wave frequency when neither source or receiver is moving.
	how dolphins navigate in the world’s oceans.
	how humans see the colors red and blue.

2 points

QUESTION 28

If you flipped a coin while going up an escalator, a person side of the elevator observing the motion of the coin would describe the motion as:

a circle.

a straight line.

an arc.

random.

an ellipse.

2 points

QUESTION 29

To a ground-based observer, what is the speed of a moving ball tossed backward at 30 km/hour on a train moving forward at 90 km/hr?

150 km/hr

60 km/hr

30 km/hr

90 km/hr

2700 km/hr

2 points

QUESTION 30

What is the difference between general and special relativity?

	General relativity applies to accelerating frames of reference and special relativity does not.
	Special relativity is a special case for two frames of reference accelerating in opposite directions.
	General relativity can only solve problems of time dilation and length contraction; special relativity can apply to problems of large mass and the speed of light.
	Special relativity is much more complex than general relativity, requiring rigorous mathematical calculations to explain.
	Physicists have been arguing over the difference since 1915 and have not come to a consensus yet.

2 points

QUESTION 31

Which one of the following cannot vary?

	Speed of light in a vacuum.
	The speed of light is relative to the observer’s frame of reference.
	The frequency of light.
	The wavelength of light.
	Every observer sees the speed of light differently.

2 points

QUESTION 32

If you went on a trip that seemed twenty years long to you while on board a spacecraft going just slightly less than the speed of light, when you returned to Earth, you would be most likely to meet your __________ assuming they did no space traveling of their own.

parents.

great-grandparents.

brothers and sisters.

yourself.

great-grandchildren.

2 points

QUESTION 33

If a spaceship were measured on the surface of the earth and was 50m long, how long would it appear to be, to someone on the surface of the earth if the ship were traveling at 1/2 the speed of light as it flew around the earth?

50m

0

less than 50m

more than 50m

infinite in length

2 points

QUESTION 34

Democritus put forth the concept of an atom because

	of experimental evidence from his laboratory.
	older ideas that he borrowed from Egyptians.
	he noticed the twinkling caused by radiation of individual atoms.

	reproducible results.
	clearly stated laws of nature.
	accurate initial predictions.
	fact-based hypotheses.
	communication of findings.

	baseball
	ping pong ball
	bowling ball
	soccer ball
	basketball

	strong force
	weak force
	gravitational force
	static electrical force
	electromagnetic force

	Benjamin Franklin
	James Clerk Maxwell
	Isaac Newton
	Thomas Edison
	Michael Faraday

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