DIVISION PRE TEST SCIENCE 10
Quiz by Jenny Dela Vega
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- Q1
Which electromagnetic wave has the highest energy?
Gamma rays
Ultraviolet wave
Visible light
Radio wave
30sS10FE-IIa-b-47 - Q2
What happens to the frequency and wavelength if the energy of the wave decreases?
wavelength decreases, frequency decreases
wavelength increases, frequency increases
wavelength decreases, frequency increases
wavelength increases, frequency decreases
30sS10FE-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 103 m, 2 x 10-9 m, 2 x 10-1 m respectively, which of the three travels the fastest?
microwaves
X-ray waves
radio waves
They all travel at the same speed
30sS10FE-IIa-b-47 - Q4
An FM radio station broadcasts at 90.5 MHz (9.05 x 107 Hz). The radio wave travels at the speed of light, what is its wavelength?
0.04 m
2. 72 x1010 m
2. 72 x 1016 m
3.31 m
30sS10FE-IIa-b-47 - Q5
A gamma ray with a frequency of 6.2 x 1019Hz is fired on an unknownobject in space. The value of Planck’s constant is 6.626 x 10-34 Js. How much energy doesthe wave carry?
4.11 x 10-14 J
4.11 x 1014 J·s
4.11 x 10-14 J·s
4.11 x 1014 J
30sS10FE-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
30sS10FE-IIa-b-47 - Q7
Which is NOT included in the group for radio communication?
Oscillator
Antennas
Amplifier
WIFI Router
30sS10FE-IIa-b-47 - Q8
Which causes sugar, water, and fat to vibrate at extremely high frequencies?
Cavity magnetron
Microwave energy
Kinetic energy
Radiation energy
30sS10FE-IIa-b-47 - Q9
Which item must NOT be placed inside the microwave oven?
Styrofoam
Pyrex cup
Foil
Hard-boiled eggs
30sS10FE-IIa-b-47 - Q10
Which is the center of transmitting and receiving radio waves towards television and radio communication?
Speakers
Wires
LCD’s
Base Station Antenna
30sS10FE-IIa-b-47 - Q11
What form of electromagnetic radiation has the most energy?
Radio waves
X-rays
Gamma-rays
Microwaves
30sS10FE-IIa-b-47 - Q12
Whichis NOT a probable result of the human tissue’s exposure to ionizing radiation?
Cancer
Cellular damage
Viral infection
Death
30s - Q13
What does ionizing radiation remove from atoms?
Nucleus
Protons
Neutrons
Electrons
30s - Q14
What is the difference between ionizing and non-ionizing radiation?
Ionizing radiation is a naturally occurring phenomenon and non-ionizing radiation is only created artificially.
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
Non-ionizing radiation is high energy radiation, but ionizing radiation is low energy radiation.
30s - Q15
How can we protect ourselves from harmful electromagnetic radiation?
Limit sun exposure
Increase cell phone use
Spend time outdoors
Put your wireless smartphone near
30s