Download Energy Conservation and Transfer Study Guide and in addition

Energy Conservation and Transfer Study Guide and in addition, study
Brain Pop handouts, all notes and warm-ups.
Temperature is usually measured in degrees with a(n)
thermometer
metric ruler
balance
expansion joint
Steel joints often separate sections of concrete bridges. Why?
a decrease in temperature can cause the materials to expand
an increase in kinetic energy can cause the bridge to contract
thermal expansion can cause the concrete to expand and crack
thermal expansion can cause the materials to shrink
According to the kinetic theory of matter, particles of a gas move
only when energy is added to the gas
less freely than those of a solid
in only one direction
more freely than those of a liquid
Heat is a flow of energy caused by
specific heat
density differences in solids
temperature differences
thermal expansion
A metal spoon is used to stir a pot of hot soup. The spoon is warmed by
radiation
insulation
conduction
convection
Suppose you are at the beach. Energy from the Sun reaches you mainly
through
conduction
insulation
convection
radiation
Why do many people wear hats in the winter?
hats are insulators
hats conduct energy to the head
hats are radiators of energy
hats have low specific heat
When you measure the temperature of an object, you are measuring
the
total kinetic energy of the particles in the object
total kinetic energy of the outside of the object
average kinetic energy of the particles in the object
kinetic energy of one gram of the object
Why do many thermometers contain alcohol?
alcohol expands evenly when temperature increases
alcohol contracts evenly when temperature increases
alcohol has electrical properties
alcohol has a very low mass
According to the kinetic theory of matter, the particles that make up a
solid
never move
move more freely than those of gases
move more freely than those of liquids
move less freely than those of liquids
What is energy?
the part of matter that cannot be destroyed
the part of matter that can be destroyed
the ability to cause change
fuels such as gasoline
Light is a form of
matter
energy
mass
sound
All moving matter has
kinetic energy
sound energy
a definite shape
a definite volume
Suppose that you see a bird in flight. Because it is moving, the bird must
have
light energy
electromagnetic energy
kinetic energy
sound energy
A light bulb changes electrical energy into
sound and heat
sound and light
light and heat
light and dark
When you rub your hands together to warm them, you change
mechanical energy into thermal energy. When you stop, the total
energy is always
less because some energy is lost to friction
less because mechanical energy decreased
the same because energy cannot be destroyed or created
greater because thermal energy increased
The kinetic theory of matter states that the atoms of a diamond are
transparent
always moving
reflectors of light
extremely hard
The kinetic energy of a liquid in a glass depends upon
only the type of liquid molecules
only the number of the liquid molecules
both the speed and mass of the liquid molecules
both the mass and type of the liquid molecules
Which of the following is an example of thermal expansion?
wood burning in a campfire
alcohol rising in a thermometer
a balloon expanding as air is added to it
the Sun’s rising on a summer day
When you measure the temperature of hot soup, you are measuring the
thermal energy given off by the bowl
specific heat of the bowl
average kinetic energy of the particles in the soup
thermal expansion of the particles in the soup
Energy as heat always flows to an object
with more kinetic energy
with lower specific heat
that has less mass
at a lower temperature
Conduction transfers energy when temperature differences exist
between objects
with different densities
with different specific heats
in direct contact
separated by a vacuum
In which situation would the atoms in an object begin to move closer
together during a phase change?
heat is removed as a gas turns into a liquid
heat is removed as a liquid turns into a gas
heat is added as a solid turns into a gas
heat is added as a liquid turns into a solid
Radiation transfers energy through
energized atoms
vibrating particles
circulating gases
electromagnetic waves
How are the atoms in an object affected when the temperature of the
object increases?
they join together
they vibrate faster
they vibrate slower
they split apart
What slows the flow of energy from a warmer object to a cooler object?
an insulator
a conductor
thermal energy
kinetic energy
Suppose that you fill an ice-cube tray with water from the tap and put
the tray in the freezer. The water’s temperature decreases because
cool air from the freezer flows into the water through heat
the water contracts at low temperatures
water evaporates and moves into the air in the freezer
energy flows from the water in to air in the freezer through heat
You pour hot chili into a cool bowl. Energy will be transferred as heat
from the chili to the bowl until the
bowl loses its kinetic energy
chili becomes warmer than the bowl
chili and the bowl are the same temperature
bowl is slightly warmer than the chili
Density is a measure of the amount of
matter in a given volume
volume that a substance takes up
space between objects
pressure in a given volume
During the day, the sand at the beach is very warm; while at night, it is
cooler. Why does this occur?
the sand reflects the sun’s energy during the day, causing it to become
warmer
the sand absorbs the sun’s energy during the day, causing it to warmer
the sand scatters the sun’s energy during the day, causing it to become
warmer
the sand refracts the sun’s energy during the day, causing it to become
warmer
Which is composed of matter?
electricity
an atom
light
heat
Josephine adds thicker strings to her guitar. What does that do?
it prevents the guitar from using air particles to transfer the sound
it changes the number of strings on the guitar
it changes the vibrations made by the guitar
it prevents the guitar from making sounds
Which best explains the relationship between the speed of sound and
the medium through which it passes?
sound travels faster in solids because of the increased distance between
solid particles
sound travels faster in air because of the decreased distance between
air particles
sound travels slower in air because of the decreased distance between
air particles
sound travels slower in solids because of the decreased distance
between solid particles
Which best explains the relationship between the electromagnetic
spectrum and sight?
visible light is the part of the electromagnetic spectrum that can be seen
with the eye
ultraviolet light is the part of the electromagnetic spectrum that can be
seen with eye
visible light and infrared light are the parts of the electromagnetic
spectrum that can be seen with the eye
ultraviolet light and infrared light are the parts of the electromagnetic
spectrum that can be seen with the eye
A worker for an electrical company is preparing to fix a power line. Why
would he put on rubber gloves before working with any power lines?
rubber is a poor conductor of heat but a good conductor of electricity
rubber is a good conductor of heat but a poor conductor of electricity
rubber is a poor conductor of heat and electricity
rubber is a good conductor of heat and electricity
What is the relationship between eyesight and light?
light shines on all objects, allowing people to see them
light shines through all objects, allowing people to see them
light enters the eye before striking an object, allowing people to see the
object
light reflects off an object and then enters the eye, allowing people to
see the object
Why are some coffee cups composed of ceramic material?
ceramic materials are conductors that limit heat transfer
ceramic materials are insulators that limit heat transfer
ceramic materials are conductors that aid heat transfer
ceramic materials are insulators that aid heat transfer
How are earthquakes, sound, and light waves alike?
they transmit energy
they carry matter
they travel in space
they can be seen
How does 250 mL of water compare to 500 mL of water?
they have the same melting point but different boiling points
they have the same boiling point but different melting points
they have the same volume but different densities
they have the same density but different volumes