Conservation of energy

When something is dropped, what type of energy transfer takes place?

• Kinetic -> Potential
• Gravitational Potential -> Kinetic -> Sound
• Electrical -> Chemical
• Heat -> Nuclear

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

Potential or kinetic?
Running?

• potential
• kinetic

Harry is playing a hand-held video game. The source of energy for the device is a battery. Which on of the following sequences shows the correct transformation of energy?

• Electromagnetic to Chemical

• Chemical to Electromagnetic

• Light to Chemical to Sound

• Chemical to Electrical to Electromagnetic

What is the energy conversion when you plug in a stereo and listen to music?

• electrical to mechanical

• chemical to nuclear

• electrical to sound

• potential to sound

What is the energy conversion when you burn wood for a fire?

• electrical to thermal

• light to kinetic

• chemical to thermal

• chemical to electrical

What is the energy conversion when you feel the warmth of the sun?

• nuclear to thermal

• nuclear to kinetic

• potential to nuclear

• light to nuclear

What is the energy conversion when you eat food for fuel to go for a run?

• chemical to nuclear

• kinetic to chemical

• chemical to kinetic

• potential to chemical

What is the energy conversion when photosynthesis takes place as the sun makes a plant grow?

• electrical to chemical

• potential to nuclear

• chemical to potential

• light to chemical

What type of device might this Sankey be about?

• A very efficient LED light bulb
• A very inefficient incandescent light bulb
• A coal power plant
• A wind turbine