Earth 1
Motion
Waves/Particles
Light
Waves
100
The name of the actual shape of the Earth
What is OBLATE SPHEROID?
100
Which of the following statements is FALSE?
A. Moon is receiving light from the sun.
B. Moon just like the sun rise and set
C. The position of the moon remains the same all throughout the day.
D. During lunar eclipse, it was observed that the shadow of the Earth is round.
What is letter C.? (The position of the moon remains the same all throughout the day.)
100
Which phenomenon occurs when two waves traveling through the same medium meet and interact?
A. Refraction
B. Dispersion
C. Diffraction
D. Interference
What is D? (Interference)
100
Which of the following is used to separate white light into its component colors?
A. Polarized filter
B. Lens
C. Prism
D. Magnifying glass
What is C? (Prism)
100
Hertz is a unit given to the number of cycles created or completed in a unit of time known as _____.
What is FREQUENCY?
200
Natural event/phenomena where the circular shadow of the Earth can be observed.
What is LUNAR ECLIPSE?
200
What is the biggest contribution of Tycho Brahe to astronomy?
A. Accurate observation of stars and planets
B. Heliocentric Universe
C. Measurement of Earth’s circumference
D. Phases of Venus
What is A? (Accurate observation of stars and planets)
200
Which is seen on the screen detector in the electron double-slit experiment?
A. dark bands
B. white bands
C. monochromatic light
D. alternating white and dark bands
What is D? (alternating white and dark bands)
200
When looking at the outward-curved (convex) surface of a spoon, what are the characteristics of the reflected image formed?
A. Virtual, upright, and magnified
B. Virtual, inverted, and magnified
C. Virtual, upright, and diminished
D. Virtual, inverted, and diminished
What is C? (Virtual, upright and dimished)
200
What quantities were necessary to solve for the speed of the wave?
A. wavelength and frequency
B. amplitude and wavelength
C. frequency and period
D. speed and wavelength
What is A? (WAVELENGTH AND FREQUENCY)
300
How come lunar eclipse does not occur every month?
A. because the plane of the Moon’s orbit is inclined to the ecliptic.
B. because of precession.
C. because Earth moves faster in its orbit when closest to the Sun.
D. because Earth’s axis is tilted with respect to the Sun.
What is letter A.? (because the plane of the Moon's orbit is inclined to the ecliptic.)
300
Tendency of a body to maintain its state of rest or of uniform speed along a straight line
What is Inertia?
300
In a vacuum, light travels at a speed of ___________ kilometers per second.
What is 300,000? (300,000 km/s = 300,000,000 m/s)
300
Responsible for the spreading of light as it passes through a narrow slit. (Name this PHENOMENA)
What is DIFFRACTION?
300
Which device enables both the transmission of radio energy into space and the reception of incoming radio signals?
A. Router
B. Wires
C. Antenna
D. Radar
What is C.? (ANTENNA)
400
An ancient Greek philosopher who believes that mathematics as the best way to express truth about the Universe; Sun, moon and Earth are spherical.
What is Pythagoras?
400
Body falling freely because of the gravitational pull of the earth.
CLUE: ____-______ body
What is free-falling body?
400
Which of the following is NOT an example of light refraction in everyday life?
A. A swimming pool appearing shallower than its actual depth.
B. Mirage illusions on a hot day.
C. The formation of a rainbow after rainfall.
D. The practical use of a shaving mirror.
What is D? (The practical use of a shaving mirror)
400
What optical phenomenon produces colored spots of light when sunlight refracts through ice crystals in the atmosphere?
A. Halo
B. Rainbow
C. Sunspot
D. Sundog
What is SUNDOG? 
400
Which scientist first proposed gravity as a universal attractive force and argued that a finite universe would inevitably collapse under its own gravitational pull?
What is ISAAC NEWTON?
500
He described the Earth as cylinder circled by air and then fire "like the bark of a tree"
What is Anaximander?
500
Constant value of acceleration due to gravity. (State the value and the units. Ex. 10 kg)
What is 9.8 m/s^2?
500
Scientist who discovered the electrons.
What is J.J. Thomson?
500
According to Maxwell's theory of electromagnetism, what is generated by a changing electric field?
A. A changing magnetic field
B. A constant electric field
C. A changing electric field
D. A constant magnetic field
What is A? (A CHANGING MAGNETIC FIELD)
500
How do radio waves facilitate wireless communication?
A. A transmitter generates radio waves, which a receiver detects.
B. A receiver generates radio waves, which a transmitter detects.
C. Radio waves are detected exclusively by radar systems.
D. Radio waves directly signal the receiver without transmission.
What is A? (A transmitter generates radio waves, which a receiver detects.)