Science 10 - Second Quarter Pre-Test
Quiz by Dexter Nalugon
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- Q1
Which electromagnetic wave has the highest energy?
Radio wave
Ultraviolet
Gamma rays
Visible light
120sS10FE-IIa-b-47 - Q2
What happens to the frequency and wavelength if the energy of the wave decreases?
wavelength decreases, frequency increases
wavelength decreases, frequency decreases
wavelength increases, frequency decreases
wavelength increases, frequency increases
120sS10FE-IIa-b-47 - Q3
Radio waves, X-ray waves, and microwaves are detected to be travelling in a vacuum. If the waves have a wavelength of 2 x 103m, 2 x 10-9 m, 2 x 10-1 m respectively, which of the three travels the fastest?
radio waves
X-ray waves
microwaves
They all travel at the same speed.
120sS10FE-IIa-b-47 - Q4
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 x1010 m
2. 72 x 1016 m
3.31 m
0.04 m
120sS10FE-IIa-b-47 - Q5
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·s
4.11 x 10-14 J
4.11 x 1014 J
4.11 x 10-14 J·s
120sS10FE-IIa-b-47 - Q6
What will happen if the antenna of the analog television is placed inside the house?
Pictures and sound transmitted are weak due to the location of the transmitter
Pictures and sound transmitted are strong due to its enclosed location.
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
120sS10FE-IIc-d-48 - Q7
Which is NOT included in the group for radio communication?
Antennas
Oscillator
WIFI Router
Amplifier
120sS10FE-IIj-54 - Q8
.Which causes sugar, water, and fat to vibrate at extremely high frequencies?
Cavity magnetron
Microwave energy
Radiation energy
Kinetic energy
120sS10FE-IIc-d-48 - Q9
Which item must NOT be placed inside the microwave oven?
Styrofoam
Hard-boiled eggs
Foil
Pyrex cup
120sS10FE-IIe-f-49 - Q10
Which is the center of transmitting and receiving radio waves towards television and radio communication?
Base Station Antenna
Speakers
Wires
LCD’s
120sS10FE-IIc-d-48 - Q11
What form of electromagnetic radiation has the most energy?
Gamma-rays
X-rays
Radio waves
Microwaves
120sS10FE-IIa-b-47 - Q12
Which is NOT a probable result of the human tissue’s exposure to ionizing radiation?
Viral infection
Cellular damage
Death
Cancer
120sS10FE-IIe-f-49 - Q13
What does ionizing radiation remove from atoms?
Nucleus
Neutrons
Protons
Electrons
120sS10FE-IIe-f-49 - Q14
What is the difference between ionizing and non-ionizing radiation?
Ionizing radiation has high energy that can remove an electron from the atom, but non-ionizing does not.
Non-ionizing radiation is a naturally occurring phenomenon and ionizing radiation is only created artificially.
Ionizing radiation is a naturally occurring phenomenon and non-ionizing radiation is only created artificially.
Non-ionizing radiation is high energy radiation, but ionizing radiation is low energy radiation.
120sS10FE-IIe-f-49 - Q15
How can we protect ourselves from harmful electromagnetic radiation?
Spend time outdoors
Put your wireless smartphone near
Limit sun exposure
Increase cell phone use
120sS10FE-IIe-f-49