Real-World Energy Detectives.
PE & KE.
Energy Transformations!
Heat Transfer.
Forms (types) of Energy.
100
*Identify It*
A basketball is sitting completely still on a shelf. What type of "stored" energy does this object currently have?
Gravitational Potential Energy
100
*Fill in the Blank*
__________ is the ability to cause change or do work.
Energy
100
*Fill in the Blank*
Energy cannot be created or destroyed, but it can be __________ or _________ from one form into another.
transformed or transferred
100
*NAME IT!*
What are the THREE methods of heat transfer?
Conduction, convection, and radiation
100
*Fill in the Blank*
The energy we hear is called __________ energy.
Sound Energy
200
Imagine you are in a group with fellow classmates. A student releases a toy car from the top of a ramp. As the car rolls DOWN the ramp, what happens?
A. KE decreases and PE increases
B. KE increases and PE decreases
C. Both disappear
D. PE and KE are created
B — KE increases while PE decreases.
200
*Imagine It - Scenario*
Two identical basketballs are sitting on shelves. Ball A is 1 meter above the floor. Ball B is 3 meters above the floor. Which has MORE gravitational potential energy?
Ball A or Ball B?
Ball B because it is at a greater height.
200
*Name that Law*
What law states that energy cannot be created or destroyed?
Law of Conservation of Energy
200
Identify the type of heat transfer:
🔥 HOT PAN
↓
🥄 Metal Spoon
↓
✋ Hand
Conduction
200
Which object BEST demonstrates elastic potential energy?
A. Stretched rubber band
B. Moving bicycle
C. Flashlight beam
D. Ringing bell
A. Stretched rubber band
300
Which statement BEST describes kinetic energy?
A. Energy stored in an object
B. Energy of motion
C. Energy stored in food
D. Energy transferred as heat
B - Energy in motion
300
*Identify It: Visual*
🚗 A
/\
/ \
/ \ 🚗 B ➡️
_________/______\________________
Which car has more gravitational potential energy based on position— Car A or Car B?
Car A because it is higher above the ground.
300
*Name that Energy Transformation!*
Turning on a lamp changes from:
A. Electrical → light
B. Chemical → nuclear
C. Sound → electrical
D. Light → chemical
A. Electrical → light
300
*Microwave Connection!*
🍿 Microwave popcorn gets hot because electromagnetic waves transfer energy to the food. Which heat-transfer mechanism best matches energy traveling by electromagnetic waves? And Explain WHY.
Radiation because the waves travel through empty space and allows the heat to reach and warm your food.
300
*EXPLAIN IT!*
What is the major difference between potential energy and kinetic energy?
Potential energy is stored energy; kinetic energy is energy associated with motion.
400
🔥 A student lights a match. Identify TWO forms of energy produced.
Light and thermal/heat energy
400
*EXPLAIN Your Thinking*
A roller coaster travels from the top of a hill toward the bottom. Describe what happens to its potential and kinetic energy.
Potential energy decreases while kinetic energy increases as the coaster moves downward and speeds up.
400
*Identify the Energy Transformation*
When you eat food and then run, the stored energy from the food can eventually produce:
A. Chemical → mechanical/kinetic
B. Light → nuclear
C. Sound → chemical
D. Thermal → nuclear
A. Chemical → mechanical/kinetic
400
Explain ONE important difference between conduction, convection, and radiation.
Conduction occurs through direct particle collisions/contact; convection transfers heat through currents in liquids or gases; radiation transfers energy through electromagnetic waves and does not require matter.
400
*Odd One Out*
Which one does NOT primarily represent chemical energy?
A. Gasoline
B. Food
C. Battery
D. Sunlight
D. Sunlight
500
*Bonus Challenge: Make the CONNECTION!*
A metal spoon and a wooden spoon are placed in hot soup. The metal spoon becomes hot much faster. Which material is the better thermal conductor?
Answer: Metal
Bonus: What is the wooden spoon acting more like?(An insulator)
500
*Scenario: ENERGY IN THE REAL WORLD!*
A student tests identical toy cars from different ramp heights.
Data Analysis
Ramp Height Distance Traveled
10 cm 40 cm
20 cm 75 cm
30 cm 110 cm
What pattern does the data show?
- As ramp height increased, the distance traveled increased. The car began with more gravitational potential energy at the greater height, which could transform into more kinetic energy as it moved.
500
*Identify the Energy Transformation!*
MULTI-STEP CHALLENGE
☀️ → Solar Panel → 💡
Radiant/light energy from the Sun → electrical energy → light/radiant energy (with some thermal energy).
500
During convection, how is thermal energy transferred between particles?
During convection, hot air rises and cool air sinks which circulates through an object/area in order to reach the same temperature. Heat transfer occurs through currents in liquids or gases.
500
*Energy Detective*
A student pulls back a rubber band, holds it, and then releases it. Describe the major energy transformation.
Answer: Elastic potential energy → kinetic energy