Second Quarter PRE-TEST IN SCIENCE 10
Quiz by Rodelio Manuel
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- Q1
Which electromagnetic wave has the highest energy?
Gamma rays
Radio wave
Ultra violetwave
Visible light
45s - Q2
What happens to the frequency and wavelength if the energy of the wave decreases?
wavelength decreases, frequency increases
wavelength increases, frequency decreases
wavelength decreases, frequency decreases
wavelength increases, frequency increases
45s - Q3
Radio waves, X-ray waves, and microwaves are detected to betravelling in a vacuum. If the waves have a wavelength of 2 x 103 m, 2 x 10-9m, 2 x 10-1 m respectively, which of the three travels the fastest?
X-ray waves
They all travel at the same speed.
radio waves
microwaves
45s - 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 x 1016 m
3.31m
0.04m
2.72 x1010 m
45s - 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 10-34Js. How much energy does the wave carry?
4.11x 10-14 J
4.11x 10-14 J·s
4.11x 1014 J·s
4.11x 1014 J
45s - Q6
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 transmitter
45s - Q7
Which is NOT included in the group for radio communication?
Amplifier
Oscillator
Antennas
WIFI Router
30s - Q8
Which causes sugar, water, and fat to vibrate at extremely high frequencies?
Kinetic energy
Radiation energy
Cavity magnetron
Microwave energy
30s - Q9
Which item must NOT be placed inside the microwave oven?
Foil
Styrofoam
Pyrex cup
Hard-boiled eggs
30s - Q10
Which is the center of transmitting and receiving radio waves towards television and radio communication?
Wires
Speakers
LCD’s
Base Station Antenna
30s - Q11
What form of electromagnetic radiation has the most energy?
Gamma-rays
Radio waves
Microwaves
Radio waves
30s - Q12
Which is NOT a probable result of the human tissue’s exposure to ionizing radiation?
Death
Cellular damage
Cancer
Viral infection
30s - Q13
What does ionizing radiation remove from atoms?
Neutrons
Protons
Nucleus
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.
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.
Non-ionizing radiation is high energy radiation, but ionizing radiation is low energy radiation.
60s - Q15
How can we protect ourselves from harmful electromagnetic radiation?
Spend time outdoors
Limit sun exposure
Put your wireless smartphone near
Increase cell phone use
45s