Science help

Topics: Nuclear fission, Energy, Nuclear power Pages: 9 (1290 words) Published: October 13, 2013
Chapter 5 "Energy Resources" Formal Assessment

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____1.The process of burning a fuel to change chemical energy into thermal energy is called a.
heat.
b.
electricity.
c.
energy.
d.
combustion.

____2.The three major fossil fuels are coal, oil, and
a.
wood.
b.
natural gas.
c.
uranium.
d.
electricity.

____3.Fossil fuels are considered nonrenewable resources because they a.
burn so quickly.
b.
are in such high demand.
c.
take hundreds of millions of years to form.
d.
pollute the air.

____4.Which of the following is an advantage of solar energy? a.
It will not run out for billions of years.
b.
It is not available at night.
c.
No backup energy sources are needed.
d.
It must be collected from a huge area.

____5.The splitting of an atom’s nucleus into two smaller nuclei is called a.
nuclear fusion.
b.
nuclear fission.
c.
a chain reaction.
d.
a meltdown.

____6.The combining of two atomic nuclei to produce one larger nucleus is called a.
hydrogen power.
b.
nuclear fission.
c.
nuclear fusion.
d.
a meltdown.

____7.Energy conservation means
a.
slowing down a chemical change.
b.
burning a fuel to release energy.
c.
using fossil fuels to produce electricity.
d.
reducing energy use.

____8.Efficiency is
a.
the percentage of energy lost to the surroundings as heat.
b.
the percentage of energy that is actually used to perform work. c.
the entire amount of energy.
d.
the time it takes for half of the energy to be used.

____9.Which of the following is an example of energy conservation? a.
driving a car alone into the city at rush hour
b.
leaving lights on whenever you leave a room
c.
recycling aluminum soda cans
d.
leaving your home uninsulated

____10.The most plentiful fossil fuel in the United States is a.
coal.
b.
oil.
c.
natural gas.
d.
wood.

____11.Which of the following is true of nuclear fusion?
a.
It produces much less energy per atom than nuclear fission.
b.
It takes very little energy to control nuclear fusion.
c.
It does not require either tremendous heat or pressure.
d.
It can produce much more energy per unit of atomic mass than nuclear fission.

____12.The intense heat from Earth’s interior that warms the magma beneath Earth’s surface is called a.
hydrogen power.
b.
tidal energy.
c.
geothermal energy.
d.
solar energy.

____13.A layer of material that helps block the transfer of heat between the air inside and outside a building is called a.
an active solar system.
b.
a solar cell.
c.
a heat exchanger.
d.
insulation.

____14.The central core of an atom is called the
a.
reactor vessel.
b.
neutron.
c.
proton.
d.
nucleus.

____15.Nuclear reactions result in tremendous amounts of
a.
uranium.
b.
energy.
c.
fission.
d.
mass.

Completion
Complete each statement.

16.The process of nuclear fission begins when a(n) ____________________ strikes the nucleus of an atom.

17.Wood, leaves, and manure belong to a group of renewable energy sources called ____________________ fuels.

18.If the fuel rods in a reactor vessel produce too much heat, a condition called a(n) ____________________ may occur.

19.Taking a bike ride instead of a car ride is practicing energy ____________________, which helps save fuel for the future.

20.Wind and hydroelectric power are both indirect forms of ____________________ energy.

Essay

21.Why must the United States purchase oil from other countries? What problem can this situation sometimes cause?

22.Give two examples of ways to conserve energy at home.

23.Describe what happens in a nuclear fusion reaction. Why have scientists been unable to control fusion reactions? Chapter 5 "Energy Resources" Formal Assessment
Answer Section

MULTIPLE CHOICE

1.ANS:DPTS:1DIF:...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Essay about The Help
  • The Help Essay
  • Essay about The Help
  • Help ! and Louis Essay
  • A Program to Help the Children Essay
  • "The Help" Research Paper
  • Speech
  • The Help Book Report Essay

Become a StudyMode Member

Sign Up - It's Free