Conservation of energy

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

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Where does most of the energy go for this transformation.

• heat
• electrical
• light
• joules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What might a title be for this sankey?

• Electrical energy
• Efficient light bulb
• 25 Joules of heat
• Sankey for a good heater.

Assume there are 10 pieces of energy.  Which is a close approximation to the number of pieces that transform into kinetic energy?

• 1
• 3
• 6
• 10

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following is NOT a form of energy?

• movement
• body mass
• heat
• food

Which fraction best describes, of the part of the gasoline that is put into a car, that actually makes the car move. 

• 4/10
• 1/4
• 2/4
• 3/5

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Think back to the first question.  Which is more efficient, a car or an incandescent light bulb?  Why?

• A car because it helps you move.
• A car because a higher percent of energy goes where you want it to.
• The light bulb because light is important to see at night.
• The light bulb because a high percent of the energy goes where you want it.

Where does most of the energy go in this transformation.

• Electrical energy
• Light
• Heat
• other

Tags

NGSS.MS-PS3-4

When heat is transferred by direct touch?

• Convection
• Conduction 
• Radiation 
• Insulation 

What is an example of conduction?

• Getting a sun burn 
• A boiling pot of water 
• Touching a hot pot
• A hot air balloon