Practice Problems: Energy Transformation
Authored by Charles Jones
Physics
9th Grade
NGSS covered
Used 1K+ times
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About
This quiz focuses on energy transformation in physics, specifically examining how one form of energy converts to another in various everyday situations and natural processes. The content is appropriate for 9th grade students who are developing foundational understanding of energy concepts in introductory physics. Students need to understand the different types of energy including kinetic, potential, chemical, thermal, electrical, mechanical, sound, and radiant energy, as well as recognize how energy flows from one form to another in common objects and biological processes. The problems require students to analyze real-world scenarios like electric appliances, biological processes, and mechanical devices to identify the sequence of energy transformations occurring. Students must also distinguish between kinetic and potential energy, understand that gravitational potential energy depends on mass and height, and recognize that thermal energy is typically the "wasted" form in most energy transformations due to inefficiency. Created by Charles Jones, a Physics teacher in the US who teaches grade 9. This comprehensive assessment supports instruction by providing students with practical applications of energy transformation concepts that connect classroom theory to everyday experiences. The quiz works effectively as formative assessment to gauge student understanding before moving to more complex energy calculations, or as review material before summative testing on energy units. Teachers can use individual questions as warm-up problems to start class discussions about energy in familiar objects, or assign the entire quiz as homework to reinforce concepts taught during direct instruction. The variety of contexts from biological systems to household appliances helps students see the universal nature of energy transformation principles. This assessment aligns with Next Generation Science Standards HS-PS3-2 (developing and using models to illustrate that energy at the macroscopic scale can be accounted for as combinations of energy associated with motion and interactions of objects) and supports foundational concepts leading to HS-PS3-3 (designing and evaluating devices that work within given constraints to convert one form of energy into another).
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
Tags
NGSS.MS-PS3-5
NGSS.MS-LS1-7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the energy transformation that occurs in an electric pencil sharpener?
mechanical energy to electrical energy
electrical energy to mechanical energy
radiant energy to sound energy
chemical energy to mechanical energy
Tags
NGSS.HS-PS3-3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which object shows an energy transformation from electrical to mechanical?
Tags
NGSS.HS-PS3-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?
thermal energy to mechanical energy
thermal energy to chemical energy to mechanical energy
chemical energy to thermal energy to mechanical energy
chemical energy to electrical energy
Tags
NGSS.HS-PS3-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
Tags
NGSS.HS-PS3-3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The roller coaster cart has the most kinetic energy at position-
W
X
Y
Z
Tags
NGSS.MS-PS3-5
NGSS.MS-PS3-1
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A hairdryer converts --
Tags
NGSS.HS-PS3-3
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