WorksheetsAstronomy 1
Total questions: 25
Worksheet time: 10mins
What do you call the packets of electromagnetic energy?
Quantum
Photons
Particle
Electrons
What do you call the phenomenon where a planet is at the greatest distance from the sun?
Perihelion
Aphelion
Eclipse
Eccentric
Coco happily told the whole class that he already observed a solar eclipse. What phase of the moon is associated with the occurrence of solar eclipse?
First Quarter
Third Quarter
New Moon
Full Moon
What is the basis of the natural units for months in our calendar?
Period of rotation of the moon around the earth
Period of revolution of the moon around the earth
Period of rotation of the earth around the sun
Period of revolution of the earth around the sun
What astronomical object has the ability to absorb all the electromagnetic energy that falls on it but does not reflect or scatter any radiation?
Light
Black body
Black holes
Stars
The one who predicted the motion of the planets with considerable accuracy
Eratosthenes
Copernicus
Ptolemy
Kepler
The distance from the center of the ellipse to one end
Major axis
Semi-major axis
Foci
Radius
Known as the widest diameter of an ellipse
Semi-major axis
Major axis
Perigee
apogee
Express 750,000,000,000 in scientific notation and in three significant figures.
7.50 x 10 ⁻ ¹ ¹
7.50 x 10 ⁻ ¹ ²
7.50 x 10 ¹ ¹
7.50 x 10 ¹ ²
Which is TRUE about light?
It is a wave
It is a particle
It is the ultimate electromagnetic wave
Both wave and particle
Which of the following pertains to the sphere that serves as the intersection of the sphere and a plane that passes through the center point of the sphere?
Meridian
Arctic Circle
Great Circle
Antarctic Circle
What do you call the point in the sky directly above an observer?
Zenith
Horizon
Stars
Meridian
What was the first belief of ancient people about the universe?
Cosmic dust orbits and hits the earth
Planets circle the sun found in the universe
Sun is the center of the universe
Earth is the center of the universe
879,300,000 is expressed in scientific notation as
8.79 x 10 7
8.79 x 10 8
8.79 x 10 9
8.79 x 10 10
If an astronomer wants to coordinate times in different parts of Earth, which of the following he/she will use as a basis
Prime Meridian
International Date Line
Longitudes
Latitudes
Aya commonly tells time using the actual position of the sun in the sky. What kind of time is she using?
Day Light Saving Time
Standard Time
Apparent Solar Time
Mean Solar Time
What tool can you use to measure the temperature of the stars?
Prism
Black body
Thermometer
Thermocouple
Which of the following is TRUE about planets?
They are stationary relative to the stars
They are moving slowly relative to the stars
They are moving rapidly relative to the stars
They are all moving at the same time relative to the stars
The apparent shift in direction of an object due to the motion of the observer.
Parallax
Doppler effect
Retrogade motion
Precession
Which of the following refers to an array of all wavelengths of the colors of the rainbow?
Continuous Spectrum
Absorption Line Spectrum
Emission Line Spectrum
Electromagnetic Spectrum
Which of the following can be the best indicator of star's temperature ?
Star's distance
Star's temperature
Star's brightness
Star's hotness
474,211,000,000,000,000 can be expressed in scientific notation as
4.74 x 10 17
4.74 x 10 18
4.74 x 10 16
4.74 x 10 15
What do you call the annual path of the sun on the celestial sphere?
Rotation
Revolution
Parallax
Ecliptic
Who among the following astronomers classify the stars according to their brightness?
Aristotle
Pythagoras
Copernicus
Hipparchus
How many planets are visible to unaided eye?
5
6
7
8
