Energy

Watching the Simpsons on TV at night before dinner is an example of an energy transformation. It is as follows:

• Light -> Sound -> Heat

• Electrical -> Light -> Sound

• Electrical -> Light -> Sound -> Heat

• Electrical -> Electrical

A candle burning is a type of energy transformation. It is chemical energy transformed into _________ and __________ energy.

• Light, kinetic

• Heat, light

• Heat, chemical

• Kinetic, solar

Bonfire burns wood and converts chemical energy into?

• thermal

• light

• both of above

2 Which of the following best illustrates the transfer from chemical energy to thermal energy?

• 
• 
• 
• 

3 Which is the best description of thermal energy?

• A A kind of chemical energy

• B A kind of potential energy

• C A kind of heat energy

• D A kind of light energy

5 Which of the following energy transformations occur when humans use energy from food to exercise?

• A Mechanical --> thermal --> chemical

• B Thermal --> electrical --> mechanical

• C Radiant --> mechanical --> thermal

• D Chemical --> mechanical --> thermal

7 Which of the following best describes the energy conversions that occurs during photosynthesis?

• A Chemical energy is changed into solar energy.

• B Solar energy is changed into mechanical energy.

• C Chemical energy is changed into heat energy.

• D Solar energy is changed into chemical energy.

The _______________ is transformed into _______________inside the battery.

• electrical energy , chemical energy

• heat energy, electrical energy

• chemical energy, electrical energy

• electrical energy, light energy

A lamp begins with electrical energy when plugged in and turns into _________ energy when the light comes on.

• light

• kinetic

• heat

• nuclear

State the transformation of energy of the electrical oven.

• chemical energy --> electrical energy --> heat energy

• electrical energy --> heat energy

• electrical energy --> light energy + heat energy

• electrical energy --> sound energy --> heat energy