26. Light is an electromagnetic wave. Which characteristic is common in all electromagnetic waves?
A frequency
C. wavelength
B. speed
D. amplitude
27. Which of the following statement is NOT TRUE?
A. violet has the highest frequency and highest wavelength
B. violet has the highest frequency and shortest wavelength
C. Red has lowest frequency and longest wavelength
D. All of the above statements are false
28. The person who discovered the Electromagnetic Theory of Light is
A. Isaac Newton
C. Pierre Curie
B. James Clark Maxwell
D. James Watson
29. How does the wavelength of infrared (IR) compare with the wavelength of ultraviolet (UV) waves?
A. Infrared waves have longer wavelength
B. Infrared waves have shorter wavelength
C. IR waves have the same wavelength as the UV waves
D. IR is not comparable in wavelength with UV waves
30. To most Filipinos, lechon is a part of their occasion. How does heat travel in roasting lechon?
A. by conduction
C. by radiation
B. by convection
D. by compaction
31. The mother cooked arroz caldo using kettle. How does heat travel through kettle?
A. by radiation
C. by convection
B. by dispersion
D. by conduction
32. Heat is a form of energy that refers to the thermal energy that is in the process of being transferred.
Which of the following statement is NOT CORRECT?
A. Heat is transferred from a cooler object to a warmer object.
B. Heat is transferred from warmer object to a cooler object.
C. Heat transfer will continue to occur as long as there is a temperature difference,
D. For heat transfer to take place, objects must be of different temperature,
33. How does heat transfer?
It transfers from an object of lower temperature to an object of higher
temperature,
II. It transfers from an object of higher temperature to an object of lower
temperature
IIL It transfers from an object with equal temperature,
A. I and II only C. I, II and III only
B. II and III only
D. Il only
34. What is the condition necessary for heat transfer to take place between objects?
A. the objects must have the same temperature
B. the objects must be of different temperature
C. the objects must have constant temperature
D. both A and B

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