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WorksheetsThermal Energy Review
Total questions: 34
Worksheet time: 17mins
Define Solar Collector.
device that collects and/or concentrates solar radiation from the Sun
device that stores electrical energy from the Sun
device that converts wind energy into electricity
device that measures temperature changes due to sunlight
________ is the study of the relationships between thermal energy, heat, and work.
Thermodynamics
Kinetics
Electromagnetism
Optics
If the mechanical energy of a system is constant, the increase in thermal energy of that system equals the sum of the thermal energy transfers into that system and the work done on that system. This is known as the ________.
First Law of Thermodynamics
Second Law of Thermodynamics
Law of Conservation of Mass
Newton's First Law
________ states that energy spontaneously spreads from regions of higher concentration to regions of lower concentration.
Second Law of Thermodynamics
First Law of Thermodynamics
Law of Conservation of Mass
Newton's Third Law
A ________ is a device that converts some thermal energy into mechanical energy.
Heat Engine
Transformer
Solar Cell
Electric Motor
An ________ is a heat engine that burns fuel inside a set of cylinders.
Internal Combustion Engine
External Combustion Engine
Electric Motor
Steam Turbine
Warmer objects will always ________ Cooler objects.
Heat
Cool
Freeze
Ignore
What substance is often used as a coolant?
Water
Sand
Wood
Oil
What is used to determine the specific heat of a substance?
Calorimeter
Thermometer
Barometer
Voltmeter
What is used to reduce the transfer of thermal energy from one place to another?
Insulators
Conductors
Radiators
Emitters
During which phase of a four-stroke engine are waste gases removed?
Exhaust Stroke
Intake Stroke
Compression Stroke
Power Stroke
Which device transfers thermal energy from a cooler region to a warmer region?
Refrigerator
Heater
Fan
Air Conditioner
Which form of thermal energy transfer does density of the substances play a key role?
Convection
Radiation
Conduction
Evaporation
Which is temperature most directly related to?
kinetic energy
mechanical energy
A building should have better thermal insulation placed in its ceiling than in its walls because:
most heat is lost or gained through the ceiling
the ceiling is easier to insulate
the walls are already insulated
it is cheaper to insulate the ceiling
Which of the following is an everyday example of conduction, convection, and radiation?
Touching a hot pan, boiling water, feeling the sun's warmth
Watching TV, reading a book, listening to music
Eating breakfast, going to school, playing football
Writing, drawing, singing
Which of the following is an everyday example of thermal energy?
A hot cup of coffee
A book on a shelf
A running car's headlights
A stretched rubber band
What is the specific heat of Water?
4200
450
4300
1400
Sunlight on Earth is most intense at:
The Equator
The Poles
The Tropics
The Arctic Circle
Which of the following are examples of good thermal insulators?
Copper and iron
Glass and wood
Aluminum and steel
Silver and gold
An example of heat engine is:
Electric motor
Steam engine
Solar cell
Transformer
Mechanical Energy tends to transform into ______ energy.
Thermal
Electrical
Sound
Light
Define: Temperature
measure of the average kinetic energy of the particles that make up an object
amount of heat required to raise the temperature of an object by 1 degree
total energy contained in an object
rate at which heat is transferred between objects
Define: Thermal Energy
the sum of the kinetic energy and the potential energy of all of the particles that make up that object
the energy stored in the bonds of chemical compounds
the energy an object has due to its position above the ground
the energy transferred by electromagnetic waves
Define: Heat
energy that is transferred between objects due to a temperature difference between those objects.
the amount of matter in an object.
the force that holds atoms together in a molecule.
the process by which plants make their own food.
Define: Specific Heat
the amount of heat needed to raise the temperature of 1 kg of that material by 1°C.
the amount of heat required to change a solid into a liquid at constant temperature.
the amount of energy needed to break a chemical bond.
the temperature at which a substance changes from solid to liquid.
Define: Conduction
the transfer of thermal energy by collisions between the particles that make up matter
the transfer of energy through empty space by electromagnetic waves
the process of a liquid turning into a gas at the surface
the movement of thermal energy in a fluid by the movement of the fluid itself
Define: Convection
the transfer of thermal energy in a fluid by the movements of warmer and cooler fluid
the transfer of energy through direct contact between solids
the emission of energy as electromagnetic waves
the process of a solid turning directly into a gas
Define: Radiation
the transfer of energy by electromagnetic waves, such as light and microwaves
the transfer of energy through direct contact between objects
the transfer of energy by the movement of fluids or gases
the process of converting solid to liquid
Define: Thermal Insulator
material through which thermal energy moves slowly
material that conducts electricity well
material that allows light to pass through easily
material that is magnetic
What is the specific heat of Wood?
1700
4200
450
150
What is the specific heat of Sand?
100
500
710
830
What is the specific heat of Carbon?
300
710
4200
450
What is the specific heat of Iron?
250
350
450
550
