WorksheetsSecond Assessment Test in Science 10
Total questions: 30
Worksheet time: 3hrs 30mins
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.
According to the Law of Reflection, which mathematical relation is TRUE?
θi = θr
θi ≠ θr
θi > θr
θi < θr
When you stand in front of a plane mirror, what image is formed?
real, upright, and smaller than you
real, upright, and the same size as you
virtual, upright, and smaller than you
virtual, upright, and the same size as you
All of the following are examples of convex mirrors EXCEPT
side mirrors of vehicles
mirrors in the supermarket
mirror used by dentists
ceiling dome mirrors
A girl wants to see an enlarged image of her face. What can serve her purpose well?
a plane mirror
a concave mirror
a convex mirror
a magnifying lens
Which of the following can produce an upright image that is smaller than the object?
concave mirror
convex mirror
plane mirror
spherical mirror
Which is NOT a characteristic of plane mirror images?
real
upright
laterally reversed
same size as the object
A card in front of a plane mirror has this mark – LUCKY. Which of the following is true?
The mark will appear as LUCKY to a person looking at the mirror.
The mark will appear as KYUCL to a person looking at the mirror.
The mark will appear as YKCLU to a person looking at the mirror.
The mark will appear as YKCUL to a person looking at the mirror.
What wave property can best explain the apparent bending of a pencil when it is dipped into a glass of water?
Dispersion
Total Internal Reflection
Reflection
Refraction
Which of the following is NOT an effect of refraction of light?
brilliance of diamond
shallowing effect on swimming pools
mirage
eclipse
What happens to light when it passes obliquely from an optically denser to a less dense medium?
It is bent towards the normal.
It is refracted away from the normal.
It is reflected back to the first medium.
It travels perpendicularly through the second medium.
Which is NOT a characteristic of an image formed by a concave lens?
virtual
inverted
smaller than the object
at the same side of the lens as the object
What phenomenon explains the sparkling of diamonds?
total internal reflection
total internal refraction
total internal dispersion
total internal aberration
What image does the convex lens form?
real image
virtual image
both real and virtual
neither real nor virtual
What happens to light when it passes obliquely from an optically a less dense to a denser medium?
It is bent towards the normal.
It is refracted away from the normal.
It is reflected back to the first medium.
It travels perpendicularly through the second medium.
Which part of the eye has the same function as the film or digital sensor array of a camera?
crystalline lens
iris
pupil
retina
What image is formed on the retina by the lens of the eye?
real and erect
real and inverted
virtual and erect
virtual and inverted
The loss of ability to focus on nearby objects due to age is called ___________.
astigmatism
hyperopia
myopia
presbyopia
An irregularly shaped cornea results to a defect of vision called ___________.
astigmatism
hyperopia
myopia
presbyopia
What are the optical instruments used in a microscope?
a concave and a convex lens
two convex lenses
two concave lenses
none of the above
What is TRUE about a telescope as an optical instrument?
It helps us see distant objects better.
It magnifies distant objects.
It gives us an erect image of the object.
All of the above.
