Energy transformations and energy transfer
Passage
•
Science
•
5th - 8th Grade
•
Practice Problem
•
Hard
Jeffery Novak
Used 5+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the law of conservation of energy state?
Energy can be created and destroyed.
Energy can only be transferred or transformed.
Energy can increase or decrease in a closed system.
Energy can be transferred without transformation.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of energy transfer?
Electricity moving from a wall socket to a battery.
Kinetic energy converting into electrical energy in a dam.
Chemical energy in gasoline converting into mechanical energy.
Light energy converting into chemical energy during photosynthesis.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does radiation differ from conduction and convection in energy transfer?
It requires direct contact between molecules.
It occurs only in fluids.
It can transfer heat through a vacuum.
It involves cyclical currents.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of energy transformation occurs in solar photovoltaic cells?
Chemical energy to mechanical energy.
Radiant energy to electrical energy.
Nuclear energy to heat energy.
Light energy to chemical energy.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which mechanism of energy transfer is demonstrated when a metal spoon heats up in boiling water?
Conduction
Convection
Radiation
Transformation
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