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WorksheetsHukum Kekekalan Energi
Total questions: 10
Worksheet time: 5mins
The law of conservation of energy states that...
Energy can be created and destroyed
Energy always increases over time
Energy cannot be created but can be destroyed
Energy cannot be created or destroyed, but can change form
Energy only exists in potential form
Which of the following examples is an application of the law of conservation of energy?
A stone falling from a table
Water evaporating from a pot
A rolling ball that then stops
All of the above answers are correct
A plant absorbs sunlight energy for photosynthesis
When a light bulb is lit, electrical energy is converted into...
Chemical energy
Mechanical energy
Heat and light energy
Potential energy
A combination of several forms of energy, including sound
In an ecosystem, sunlight energy is converted into chemical energy through the process of...
Photosynthesis
Decomposition
Transpiration
Respiration
Evaporation
The correct statement regarding the law of conservation of energy is...
Total energy in the universe continues to decrease
Energy can be lost in the form of heat
Energy can transfer from one object to another, but the total amount remains constant
Potential energy is always greater than kinetic energy
The law of conservation of energy only applies to closed systems
The correct statement regarding systems and environments is...
Systems are always larger than the environment
The boundary between systems and environments is always clear
Systems and environments influence each other
The environment never changes
Systems are always in equilibrium
In a chemical reaction, the system is...
The substances that react
The container where the reaction takes place
The energy produced or absorbed
The surrounding environmental temperature
The catalyst used
A system that does not allow the exchange of energy or mass with its environment is called...
Isolated system
Closed system
Adiabatic system
Open system
Isothermal system
A system that allows the exchange of energy and mass with its environment is called...
Isolated system
Closed system
Adiabatic system
Open system
Isothermal system
An example of a closed system in everyday life is...
Boiling water in an open pot
Ice melting in a glass
A battery used in a flashlight
Air in an expanding balloon
Water evaporating from the ocean surface
