G10 2ND QUARTER PRETEST
Quiz by Daniel Villanueva
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includes Teacher and Student dashboards
Measures 6 skills fromGrade 10SciencePhilippines Curriculum: Grades K-10 (MELC)
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- Q 1/30Score 0
Which electromagnetic wave has the highest energy?29
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Which electromagnetic wave has the highest energy?
What happens to the frequency and wavelength if the energy of the wave decreases?
wavelength increases, frequency decreases
wavelength decreases, frequency decreases
wavelength decreases, frequency increases
wavelength increases, frequency increases30sS10FE-IIa-b-47
Radio waves, X-ray waves, and microwaves are detected to be travelling in a vacuum. If the waves have a wavelength of 2 x 103 m, 2 x 10-9 m, 2 x 10-1 m respectively, which of the three travels the fastest?
They all travel at the same speed.
An FM radio station broadcasts at 9.05 MHz (9.05 x 107 Hz). The radio wave travels at the speed of light, what is its wavelength?
2.72 x 1016 m
2. 72 x1010 m30sS10FE-IIa-b-47
A gamma ray with a frequency of 6.2 x 1019Hz is fired on an unknown object in space. The value of Planck’s constant is 6.626 x 10-34 Js. How much energy does the wave carry?
4.11 x 1014 J
4.11 x 10-14 Js
4.11 x 1014 Js
4.11 x 10-14 J30sS10FE-IIa-b-47
What will happen if the antenna of the analog television is placed inside the house?
Pictures are clear, but the sound is intermittent due to its enclosed location
Pictures are blurred, but the sound is good due to the transmitter’s location
Pictures and sound transmitted are strong due to its enclosed location.
Pictures and sound transmitted are weak due to the location of the transmitter30sS10FE-IIc-d-48
Which is NOT included in the group for radiocommunication?
Which causes sugar, water, and fat to vibrate at extremely high frequencies?
Which item must NOT be placed inside the microwave oven?
Which is the center of transmitting and receiving radio waves towards television and radio communication?
Base Station Antenna
What form of electromagnetic radiation has the most energy?
Which is NOT a probable result of the human tissue’s exposure to ionizing radiation?
What does ionizing radiation remove from atoms?
What is the difference between ionizing and non-ionizing radiation?
Non-ionizing radiation is high energy radiation, but ionizing radiation is low energy radiation
Ionizing radiation is a naturally occurring phenomenon and non-ionizing radiation is only created artificially.
Non-ionizing radiation is a naturally occurring phenomenon and ionizing radiation is only created artificially.
Ionizing radiation has high energy that can remove an electron from the atom, but non-ionizing does not.30sS10FE-IIe-f-49
How can we protect ourselves from harmful electromagnetic radiation?
Increase cell phone use
Put your wireless smartphone near
Limit sun exposure
Spend time outdoors30sS10FE-IIe-f-49
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