WorksheetsInvestigation 1 Exploring Energy and Thermodynamics Concepts
Total questions: 37
Worksheet time: 1hrs 20mins
Investigate how two objects of different temperatures will reach thermal equilibrium if there is some thermal connection between them.
The objects will remain at their initial temperatures.
The objects will reach a common temperature.
The hotter object will get hotter, and the cooler object will get cooler.
The objects will exchange heat indefinitely without reaching equilibrium.
Explain the first law of thermodynamics using an example.
Energy can be created and destroyed.
Energy cannot be created or destroyed, only transformed.
Energy is always lost in any process.
Energy is only conserved in closed systems.
Identify and describe how balanced chemical equations illustrate conservation of mass.
They show that the total mass of reactants equals the total mass of products.
They show that mass is lost during chemical reactions.
They show that mass is gained during chemical reactions.
They show that mass is irrelevant in chemical reactions.
Describe the basic structure of atoms.
Atoms consist of protons, neutrons, and electrons.
Atoms consist only of protons and electrons.
Atoms consist only of neutrons and electrons.
Atoms consist only of protons and neutrons.
Compare fission and fusion reactions.
Fission involves combining nuclei, while fusion involves splitting nuclei.
Fission involves splitting nuclei, while fusion involves combining nuclei.
Both fission and fusion involve splitting nuclei.
Both fission and fusion involve combining nuclei.
Model energy flow from one component in a system to another component in the same or different system.
Energy flows from a cooler object to a hotter object.
Energy flows from a hotter object to a cooler object.
Energy does not flow between components.
Energy flows equally in both directions.
Identify and describe the properties of types of energy.
Kinetic energy is the energy of position, and potential energy is the energy of motion.
Kinetic energy is the energy of motion, and potential energy is the energy of position.
Both kinetic and potential energy are forms of thermal energy.
Both kinetic and potential energy are forms of chemical energy.
Investigate and explain how energy flows in a system and how it transforms from one type to another.
Energy can only transform from kinetic to potential energy.
Energy can transform from one type to another, such as from chemical to thermal energy.
Energy cannot transform from one type to another.
Energy can only transform from thermal to chemical energy.
Explain how the first law of thermodynamics relates to energy in a system.
The total energy of an isolated system is constant.
The total energy of an isolated system can increase.
The total energy of an isolated system can decrease.
The total energy of an isolated system is irrelevant.
Compare and contrast temperature and heat.
Temperature is a measure of the total energy, while heat is a measure of the average energy.
Temperature is a measure of the average kinetic energy, while heat is the transfer of energy.
Temperature and heat are the same.
Temperature is the transfer of energy, while heat is a measure of the average kinetic energy.
What is the primary difference between thermal energy and temperature?
Thermal energy is the total kinetic energy of particles, while temperature is the average kinetic energy of particles.
Thermal energy is the average kinetic energy of particles, while temperature is the total kinetic energy of particles.
Thermal energy and temperature are the same.
Thermal energy is a measure of potential energy, while temperature is a measure of kinetic energy.
Which law of thermodynamics states that energy cannot be created or destroyed?
Zeroth Law
First Law
Second Law
Third Law
In a chemical reaction, how is the conservation of mass demonstrated?
The mass of the products is greater than the mass of the reactants.
The mass of the reactants is greater than the mass of the products.
The mass of the reactants equals the mass of the products.
Mass is not conserved in chemical reactions.
What happens to the energy in a system according to the first law of thermodynamics?
It can be created or destroyed.
It remains constant.
It can only increase.
It can only decrease.
What is the charge of an electron?
Positive
Negative
Neutral
It depends on the atom
Which subatomic particle is found in the nucleus and has no charge?
Proton
Electron
Neutron
Positron
What does thermal equilibrium mean?
It is the point at which two substances reach the same temperature and heat no longer flows between them.
It is the condition under which a substance changes from solid to liquid.
It is the condition under which a substance emits the maximum amount of radiation.
It is the point at which a substance can no longer absorb heat.
Describe the process of energy transfer in conduction.
Energy is transferred through the movement of fluids.
Energy is transferred through direct contact between particles.
Energy is transferred through electromagnetic waves.
Energy is transferred through chemical reactions.
What is the primary difference between an endothermic and an exothermic reaction?
Endothermic reactions release energy, while exothermic reactions absorb energy.
Endothermic reactions absorb energy, while exothermic reactions release energy.
Both endothermic and exothermic reactions release energy.
Both endothermic and exothermic reactions absorb energy.
How does the energy of the products compare to the reactants in an exothermic reaction?
What is the primary difference between kinetic and potential energy?
Kinetic energy is the energy of motion, while potential energy is the energy of position.
Kinetic energy is the energy of position, while potential energy is the energy of motion.
Both kinetic and potential energy are forms of thermal energy.
Both kinetic and potential energy are forms of chemical energy.
Heat always travels from...
Warm to cool
Cool to warm
Warm to warm
Cool to cool
What is the Law of Conservation of Mass?
Mass is created in a chemical reaction
Mass is created in a physical change
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
Mass is never created or destroyed
Chemical reaction in which energy is released.
2H2 + O2 --> 2H2O
2H2 + O2 --> 2H2O
Al + O2 --> 2Al2O3
Mg + __HCl ---> MgCl2 + H2
4Fe + 3O2 --> 2Fe2O3
Drag and drop the coefficients that balance this equation 2 Fe + (a) Cl2 ----> (b) FeCl3
Balance this equation (a) N2 + (b) H2 --> (c) NH3
P4+O2 --> P2O3
P4 + O2 --> P4O2
Which of the following is balanced?
Mg + HCl --> H2 + MgCl2
H2O + CO2 --> H2CO3
KClO3 --> KCl + O2
H2 + O2 --> H2O
Balance this equation: _Zn + _O2 --> _ZnO
1, 1, 2
2, 1, 2
1, 1, 1
2 ,2, 2
