Second Assessment Test in Science 10

Produced by oscillating electric charges, with the electric field and magnetic field vibrating perpendicularly to each other and to the direction of wave propagation.

• primary waves

• secondary waves

• seismic waves

• electromagnetic waves

Which of the following is NOT true of all electromagnetic waves?

• They are transverse waves.

• They cannot travel in a vacuum.

• They are produced by accelerating charges.

• They have magnetic as well as electric components.

Which among the electromagnetic waves has the highest frequency?

• gamma rays

• microwaves

• radio waves

• X-rays

Among the different colors of visible light, which has the longest wavelength?

• blue

• green

• orange

• red

Which does not belong to the group?

• infrared waves

• microwaves

• sound waves

• X-rays

Which government agency is in charge of the safe use of ionizing radiation?

• Philippine Nuclear Research Institute (PNRI)

• Department of Science and Technology (DOST)

• Philippine Institute of Volcanology and Seismology (PHIVOLCS)

• Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA)

Which of the following electromagnetic waves is used to check baggage in airports as part of security measures?

• gamma rays

• microwaves

• radio waves

• X-rays

All of the following uses infrared rays EXCEPT

• burglar alarm system

• television sets

• night vision cameras

• automatic doors

What is common among electromagnetic waves?

• energy

• frequency

• speed in vacuum

• wavelength

Which of the following statements is NOT true?

• Excessive exposure to visible light, especially in the blue region, can cause eye damage.

• Too much exposure to ultraviolet rays burns our skin and can cause skin cancer.

• Exposure to high-level ionizing radiation may cause an immediate effect such as death or radiation burns.

• Microwaves are known to cause cataracts.