Energy Transformation

A flashlight contains and produces various types of energy. Where in the flashlight is the chemical energy stored?

• batteries

• lightbulb

• wires

• it does not contain chemical energy

A steamboat engine works by heating water in boilers to generate steam that causes the paddlewheel to spin within the water, allowing the boat to change direction and propel onward. What energy transformation is taking place within the steamboat engine?

• chemical to mechanical

• thermal to mechanical

• thermal to chemical

• electrical to thermal

Tags

NGSS.MS-PS3-5

What energy transformation occurs within a battery-powered radio?

• mechanical to chemical to sound

• mechanical to electrical to sound

• chemical to electrical to sound

• electrical to thermal to sound

Which statement regarding energy is true?

• Energy is constantly in motion.

• Energy cannot be created nor destroyed.

  
  

• Energy is the result of two surfaces rubbing against one another.

• Energy cannot be transferred between objects.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following systems converts chemical energy into mechanical energy?

• toaster

• vacuum

• human body

• electric fan

Meghan is baking cookies for her friends at school. Meghan sets her oven on the convection setting, where a fan spins to help evenly distribute the air for perfect cookies. Which three types of energy are given off by the oven as her cookies are baking?

• thermal

• light

• mechanical

• potential

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Electrical energy powers our world. Which two of the following examples below is powered by an energy source other than electrical energy?

• dishwasher

• windmill

• ceiling fan

• sailboat

Which change to the circuit would result in no working lightbulbs?

• disconnecting wire B from the switch

• opening the switch

• removing wire D

• cutting wire F

If Switch B is closed, how many light bulbs will turn on, demonstrating the transformation of electrical energy into light?

• 1

• 2

• 3

• 0

Anthony is constructing a simple circuit in science class. He needs to connect his load to the energy source. Which two of the following items could Anthony use to construct a closed simple circuit?

• porcelain cup

• piece of styrofoam

• silver spoon

• copper wire