Review Game for Quiz 1

When there is a change in kinetic energy due to speed being cut in half, what should you do to your original kinetic energy to calculate your new kinetic energy?

• multiply by 2

• 
  multiply by 4

• divide by 4

• divide by 2

A battery is used to light a bulb. What energy transformations are taking place?

• heat→electrical→light

• 
  
  electrical→light→solar

• mechanical→light→electrical

• chemical→electrical→light

Amanda listed a few observations in her notebook. In which observation(s) is kinetic energy transformed to potential energy?

• observation 1

• 
  
  observation 4

• 
  observations 1 and 2

• 
  observations 2 and 3

A stone is placed in a thick rubber band. The rubber band is stretched and then released. The stone rises in the air and then falls down.

Which option correctly identifies an instance when potential energy is transformed into kinetic energy?

• 
  releasing the rubber band

• stretching the rubber band

• stone rising in the air

• 
  stone reaching its highest point in the air

Amy lit a firework rocket that moved skyward and produced a burst giving off light and a loud sound. Which statement is true about the energy transformation the firework underwent?

• The kinetic energy of the firework was transformed into chemical energy when moving skyward.

• The kinetic energy of the firework was transformed into potential energy when moving skyward.

• 
  The potential energy of the firework was transformed into kinetic energy when moving skyward.

• 
  The potential energy of the firework was transformed into chemical energy when moving skyward.

The diagram shows an electric circuit. What is the correct sequence of energy transformation that occurs when the switch is moved to the on position?

• chemical energy → light energy → heat energy

• chemical energy → heat energy → electrical energy

• chemical energy → electrical energy → light energy

• 
  chemical energy → light energy → electrical energy