WorksheetsScience - Energy Unit
Total questions: 40
Worksheet time: 20mins
Which material is the best conductor of heat and electricity?
wood
metal
stone
plastic
Energy is transferred from the sun to Earth mainly by
mechanical waves
air currents
electromagnetic waves
conduction
The main method of heat transfer occurring within water is called________.
conduction
convection
radiation
insulation
Thermal energy is transferred through a material by the collision of ________ within the material.
atoms
waves
crystals
light
What kind of energy does a moving baseball have?
electrical
mechanical
magnetic
chemical
Which of the following is the best insulator?
copper
aluminum
gold
wood
What is the primary source of energy on Earth?
the sun
the moon
water
rocks
What form of energy causes an ice cube to melt?
mechanical
magnetic
sound
thermal
In general, metals are ________.
poor conductors of heat.
fragile. (easily broken)
poor conductors of electricity.
good conductors of heat.
Heat flows from warm objects to cooler objects until both objects are at ________.
expansion
thermal
equilibrium
conduction
What change of state is shown?
liquid to gas
gas to liquid
solid to gas
solid to liquid
Conduction involves heat transfer through direct contact.
True
False
Light from the sun provides heat and energy.
True
False
Thermal energy is always transferred from colder objects to warmer objects.
True
False
Heat travels through solids primarily by radiation.
True
False
Potential energy is stored energy.
True
False
Energy is the ability to do work.
True
False
A battery converts what type of energy to another?
sound to kinetic
light to heat
mechanical to electrical
chemical to electrical
On a roller coaster, where is the maximum potential energy?
at the bottom of a big hill
when going around a corner
when going upside down
at the top of a big hill
The law of conservation of energy states that
energy cannot be created.
energy can be destroyed.
energy cannot be created or destroyed.
energy cannot be destroyed.
What is energy changing from one form to another?
energy conservation
energy transformation
energy creation
mechanical energy
On a roller coaster, where is the maximum kinetic energy?
when going around a corner
when going upside down
at the top of a big hill
at the bottom of a big hill
A hairdryer converts
electrical energy into chemical.
electrical energy into thermal.
chemical energy into mechanical.
thermal energy into mechanical.
heat transferred when two objects touch
conduction
convection
temperature
radiation
the ability to do work
heat
temperature
expansion
energy
an increase in the size of a substance in response to an increase in the temperature
thermal expansion
thermal equilibrium
temperature
heat
the upward movement of warm air and downward movement of cool air
radiation
convection currents
heat
thermal expansion
the point at which two objects that are touching reach the same temperature
thermal expansion
insulators
thermal equilibrium
conductors
heat transferred by the circulation of a liquid or gas
conduction
convection
radiation
energy
the energy of motion
kinetic energy
radiation
mechanical energy
convection currents
materials that do not conduct energy well
conductors
convection currents
thermal expansion
insulators
the measure of how hot or cold something is
heat
temperature
chemical energy
thermal energy
the transfer of energy by electromagnetic waves
radiation
conduction
convection
insulation
the kinetic energy due to the random motion of particles in an object
chemical energy
convection currents
temperature
thermal energy
materials that transfer energy well
insulators
conductors
thermal equilibrium
chemical energy
energy transferred between objects of different temperatures
temperature
energy creation
motion
heat
potential energy that is stored in chemical bonds
kinetic energy
thermal energy
chemical energy
thermal expansion
This is an example of:
conduction
convection
radiation
This is an example of:
conduction
convection
radiation
This is an example of:
conduction
convection
radiation
