POSTTEST
Directions: Choose the letter of the best answer. Write the letter of your
answer on a separate sheet of paper.
1. Transformation of energy occurs when
A. energy is wasted
B. energy is created
C. there is electricity
D. energy is transformed from one form to another
2. Which shows transformation of energy in a television?
A. mechanical energy
sound
light
B. electrical energy
lightΣ sound
C. lights
electrical energy
mechanical energy
D. electrical energy
light
sound
heat
3. When you light the wood to burn, what kind of energy transformation
occurs?
A. transformation through heat
B. transformation through light
C. transformation through work
D. transformation through vacuum
heat -
4. What is the proper sequence for transformation of energy of a car?
A. mechanical energy
chemical
heat
mechanical energy
B. chemical energy
mechanical energy
C. chemical energy
heat sound
D. chemical energy
electrical energy
mechanical energy
5. Which is true about the Law of Conservation of Energy?
A. Energy can be created.
B. Energy can be destroyed.
C. Energy can repeat itself and created.
D. Energy cannot be created nor destroy, it can only be transformed
from one form to another​