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G10_Chap 1-6 Flashcards | StudBud
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G10_Chap 1-6
G10_Chap 1-6
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1
Which is true about the center of gravity of an object?
the CG may be located at two points in an object
the weight of an object is concentrated at its center of gravity
hanging an object at its CG makes the object rotate
the CG is always located at midpoint of any object
2
Which of the following does not accurately describe an active volcano?
presence of hot spring
changes in the elevation of the volcano's crater
presence of seismic activity
annual volcanic eruption
3
The image formed by a convex mirror is always _____.
virtual, upright, enlarged
virtual, upright, same size
real, inverted, reduced
virtual, upright, reduced
4
Which of the following is not a characteristic of the image formed by a plane mirror?
the image is real, inverted, and smaller than the object
the image is laterally reversed
the image is virtual, upright, and same size as the object
the image distance is equal to the object distance
5
These waves has wavelengths less than a meter and are used un broadcasting, cordless phones, and police radio.
ultrahigh frequency waves
medium waves
very high frequency waves
long waves
6
All of the following plates form the Alpine-Himalayan belt except _____.
Eurasian Plate
Indo-Australian Plate
African Plate
Philippine Plate
7
The CG of an object depends on its _____.
volume
mass
area
size
8
The image formed by a concave mirror when the object is located at F.
virtual, upright, same size
no image
virtual, upright, reduced
virtual, upright, enlarged
9
Type of lens that is thin at the center and thick at its edges.
convex lens
biconvex lens
converging lens
concave lens
10
Which heavenly body did the USSR's Luna spacecraft focus on?
Jupiter
Earth
Venus
Earth's moon
11
These satellites are used to send precise, continuous signals to ships and planes?
weather satellite
navigation satellite
scientific satellite
communication satellite
12
Where is the CG of a ring with uniform material and composition
at its center
anywhere along the ring
anywhere along its radius
anywhere along its diameter
13
These forces have line of action that do not meet at a common point.
nonconcurrent forces
Concurrent forces
14
What is being formed when an oceanic plates subducts to a continental plate?
plateau
volcanic arc
mountain range
trench
15
It is the measure of the tendency of a force to cause a body to rotate.
momentum arm
torque
axis of rotation
concurrent force
16
Most of the active volcanoes are found in the Philippines are due to the _____.
subduction of the Philippine Plate to other trenches along Luzon
formation of transform boundary by the Philippine and Pacific Plate
convergence of the Philippine Plate and the Indo-Australian Plate
divergence of Philippine plate and the Eurasian Plate
17
Which of the following explains the similarity of patterns of rocks and fossils in the southern hemisphere?
Gondwana sequence
seafloor spreading
plate tectonic theory
convection current
18
It is a gamma ray emitter that is used to sterilize medical equipment in hospitals.
cesium-137
iodine-131
potassium-40
cobalt-60
19
Balance and stability is important in sports. Which of the following statements is not true?
the greater the mass, the greater the stability
the nearer the line of gravity to the base, the greater the stability
the higher the center of gravity, the greater the stability
the wider the base of support, the greater the stability
20
These are high energy radiation from space whose interaction with Earth's magnetic field produces norther lights.
cosmic rays
infrared rays
visible light
UV rays
21
Which of the following is common among EM waves?
Their speed are inversely proportional to their frequency
Their speed are proportional to their frequency
none of the above
They travel in the same speed
22
Type of mirror that is used in a view finding mirror of a vehicle.
convex mirror
plane mirror
concave mirror
paraboidal mirror
23
Which of the following space agencies is not a member of the International Space Station?
China's CNSA
Europe's ESA
USA's NASA
Russia's Roscosmos
24
On 2018, Mt. Mayon spewed lava and ash 700m high into the atmosphere. What could be the result of this large eruption
Cities that are 1,000km away from the danger zone may still experience smog
People who are exposed to volcanic ash and dust may acquire lung problems
Only villages that are 1km away from the volcano may be burned
Toxic gases emitted after the eruption may still linger after a decade
25
Where is the CG of a rod with uniform shape and material composition?
at any of its two ends
at its cross section
at any point within the rod
at its midpoint
26
Who was the first man to orbit Earth?
David Scott
Yuri Gagarin
John Young
Edwin Aldrin Jr.
27
Convection current tells that the cooler material ____ to Earth's core, while hotter material ____.
rises, shrinks
shrinks, expands
sinks, rises
expands, shrinks
28
The Himalayan range is formed by _____.
Indian and Eurasian Plate
Nazca and Arabi Plate
Eurasian and Indo-Australian Plate
South American and African Plate
29
These are satellites that orbit at high altitudes.
artificial satellite
geostationary satellite
equatorial satellite
polar orbit satellite
30
How many successful mission did NASA launched under Apollo program?
5
4
7
6
31
Type of lens that is used to correct farsightedness?
biconvex lens
converging lens
concave lens
diverging lens
32
Which of the following is an example of a divergent boundary?
the Mid-Atlantic ridge formed by North American and Eurasian Plates
the New Zealand and New Guinea transform boundaries
the Cascade range formed by Juan de Fuca and North American Plates
the Southern Alps formed by the Australian and Pacific Plates
33
Which of the following type of UV rays cause the greatest damage to skin?
UV C
UV A
UV B
all of the above
34
The Tibetan plateau is the result of the collision of _____ and _____ plates.
Eurasian and Indian
North American and Juan de Fuca
Indo-Australian and African
South American and Nazca
35
Which provinces does the Sierra Madre mountain range occupy?
Cagayan, Isabela, Nueva Vizcaya, and Nueva Ecija
Camarines Norte, Camarines Sur, Albay, and Sorsogon
Ifugao, Benguet, Pangasinan, and Zambales
Ilocos Norte, Abra, Ilocos Sur, and La Union
36
Which of the following EM waves has wavelength ranging from 40 to 400 nm?
x-rays
visible light
UV rays
infrared rays
37
These types of plate boundary are also called destructive boundaries because the plate materials are subducted.
transform boundaries
convergent boundaries
fault vallley
divergent boundaries
38
The plate that is known to cause the seismic activities on Earth.
African Plate
Eurasian Plate
Indo-Australian Plate
Pacific Plate
39
The lithosphere consist of 7 major plates and some minor plates. Which of the following is not a major plate?
South American Plate
African Plate
Eurasian Plate
Cocos Plate
40
From which countries did the scientists found similar fossils of the seed fern
Glossopteris
?
Australia, India, and South Africa
Indonesia, Bangladesh, and Botswana
Spain, Russia, and South Korea
Philippines, Colombia, and Denmark
41
Which of the following is not an earthquake hazard?
landslide or mudslide occurring in mountainous regions
fire caused by broken electrical wires and gas pipes
damage to property and casualties in highly populated areas
fish kill due to tsunami
