1. Which of the following materials absorbs more heat?
a. chalk, cotton, paper
b. juice, milk, water
c. clay, tiles, wood
d. charcoal, sand, tire
2. Why do light colored objects absorb less heat?
a. Objects absorb all the wavelengths of light.
b. Objects do not absorb light.
c. Objects heat faster than dark objects.
d. Objects reflect most wavelengths of light.
3. Which of the following is NOT an example of materials that transmit light?
a. display cabinet doors
b. windows of houses
c. wooden doors
d. picture frame
4. Why do most people in tropical countries use white paint for their homes?
a. It helps decrease the temperature.
b. It makes them feel hot
c. It shades their house
d. It absorbs more heat.
5. What is being produced when there is a reflection of sound?
a. silence
b. light
c. heat
d. echo
6. What material can you use in order to block the sunlight that damages your skin?
a. bag
b. umbrella
c. book
d. raincoat
7. How does light travels?
a. Light travels in all direction.
b. Light travels in a straight line.
c. Light travels in a zigzag motion.
d. Light does not travel.
8. Where do sounds travel faster?
a. air
b. solid
c. water
d. none of the above
9. Which of the following statements is TRUE about sounds?
a. Sound may not be absorbed or reflected when it strikes an object.
b. Sound is produced when there is a vibration.
c. Clear sound is heard when it is absorbed by an object.
d. Reflected sound is called vibration.
10.Which best describes an electric circuit?
a. It is were electricity flows freely.
b. It is a broken pathway for charge carriers.
c. It is a complete path for electric current.
d. It is made up of plain wires only.