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WorksheetsThermal Energy Amplify Vocabulary
Total questions: 25
Worksheet time: 25mins
__________ is the total kinetic energy of all the molecules that make up a sample
system
molecule
thermal energy
infer
In some places, hot water from underground can shoot up into the air through a hole in the ground. When this happens, the ground surrounding the water increases in temperature. What happens to the molecules in the ground when the temperature of the ground increases?
More heat molecules combine with the molecules in the ground.
The energy of the molecules in the ground decreases.
The energy of the molecules in the ground increases.
The cold energy of the molecules in the ground decreases.
Nistu is cooking rice in a pot. When she leaves the pot on the stove for a while, the temperature of the rice increases. What happens to the molecules of the rice when the temperature of the rice increases?
The energy of the molecules in the rice increases.
The cold energy of the molecules in the rice decreases.
The energy of the molecules in the rice decreases.
More heat molecules combine with the molecules in the rice.
Rico and Bree are camping and have potatoes wrapped in foil to eat. Bree put her potato in the campfire for a while, but Rico did not. Now Bree’s potato has a high temperature. What is the difference between the molecules of the two potatoes?
There is no difference because both potatoes are made of the same type of molecules.
The molecules of Rico’s potato are smaller than the molecules of Bree’s potato.
The molecules of Bree’s potato are moving and the molecules of Rico’s potato are not moving.
The molecules of Bree’s potato are moving faster than the molecules of Rico’s potato.
Identify the type of energy represented by the illustration.
Nuclear Energy
Elastic Energy
Thermal Energy
Electrical Energy
Which of the following is a characteristic of thermal energy?
It is always conserved
It can be completely converted into work
It increases with the motion of particles within an object
It is the same as temperature
What is the process by which thermal energy is transferred through direct contact between molecules?
Conduction
Convection
Radiation
Evaporation
Which of the following is a measure of the average kinetic energy of the particles in a substance?
Heat
Temperature
Thermal energy
Potential energy
In which state of matter do particles have the highest kinetic energy?
Solid
Liquid
Gas
Plasma
What is the term for the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius?
Specific heat capacity
Thermal conductivity
Latent heat
Heat of fusion
Which of the following materials is the best conductor of thermal energy?
Wood
Glass
Copper
Plastic
What happens to the molecules of a substance as it absorbs thermal energy?
They move slower
They move faster
They stop moving
They change into a different element
Which law states that energy cannot be created or destroyed, only transferred or transformed?
Law of Conservation of Energy
Newton's First Law
Law of Thermodynamics
Law of Inertia
What is the primary method of heat transfer in fluids?
Conduction
Convection
Radiation
Diffusion
Which of the following is an example of thermal energy transfer by radiation?
Heat from a stove
Sunlight warming the Earth
Boiling water
Ice melting
What is the effect of increasing temperature on the pressure of a gas, assuming volume is constant?
Pressure decreases
Pressure increases
Pressure remains constant
Pressure becomes zero
Which of the following is a real-world application of thermal energy?
Solar panels converting sunlight to electricity
Wind turbines generating power
Hydroelectric dams
Nuclear fission
What is the term for the energy transferred between objects at different temperatures?
Work
Heat
Power
Force
Which of the following processes involves the absorption of thermal energy without a change in temperature?
Melting
Boiling
Sublimation
Phase transition
What is the role of insulation in thermal energy management?
To increase heat transfer
To decrease heat transfer
To convert heat to electricity
To store heat indefinitely
Which of the following is an example of an endothermic process?
Combustion
Freezing
Evaporation
Condensation
What is the term for the spontaneous transfer of thermal energy from a hotter object to a cooler one?
Thermal equilibrium
Heat flow
Thermal expansion
Thermal contraction
Which of the following best describes the relationship between thermal energy and temperature?
They are the same
Thermal energy is the total energy, temperature is the average energy
Temperature is the total energy, thermal energy is the average energy
They are unrelated
What is the effect of thermal expansion on a metal rod when heated?
It contracts
It expands
It remains the same
It changes color
Which of the following is a device that uses thermal energy to do work?
Electric motor
Steam engine
Solar panel
Wind turbine
