NEW
Font size
WorksheetsTelevision & Apollo Project
Total questions: 20
Worksheet time: 10mins
Which of these is one of the primary colors of television pixels?
the color yellow
the color green
the color purple
the color orange
Which of the following statements best describes how a color cathode-ray tube television works?
A cathode beams electromagnetic light in the form of red, green, and blue electrons at the inside of the screen.
Electromagnetic chemicals on the inside of the screen attract electrons of different-colored wavelengths.
An electromagnet guides three separate electron beams to light-emitting substances on the inside of the screen.
A cathode emits red, green, and blue images; electromagnets mix the images on the back of the screen.
Which elements are these two televisions most likely to share?
Phosphors
A liquid crystal display
A backlight
A supply of ionized gas
As the screen size of a CRT TV increases, so does the tube's depth. What conclusion can you draw from this fact?
CRT television screens can be much bigger than flat panel (screen) TVs.
CRT television screens can be as big as plasma screens, but not as big as LCD screens.
CRT television screens can be as big as LCD screens, but not as big as plasma screens.
CRT television screens cannot be as big as flat-panel screens.
The crystals in an LCD television are helical, like DNA molecules. Which of the following also has a helical shape?
What is plasma?
A gas with a specific color.
A filtered light wave.
An electrically charged gas.
A rod-shaped crystal formation.
A light wave has to be moving at a specific orientation to pass through an LCD television's filter. In this sentence, what does "orientation" mean?
Angle
Depth
Velocity
Frequency
Instead of using phosphors, how do LCD televisions create different colors?
With a backlight
With color filters
With special gases
With liquid crystals
LCD TVs work by preventing light waves of a certain orientation from passing through a medium. Which of the following everyday objects can you infer might also use this process, known as polarization?
A ball of cotton
A flashlight
A glass of milk
A pair of sunglasses
How are LCD, plasma, and cathode-ray-tube television sets all similar?
They all combine three colors of light to create images in many colors.
They all require an antenna to pick up TV signals
They all block out white light using various filters
They all contain many sets of light-emitting diodes
Place the following events in sequence: A) The Apollo Project begins; B) The Mercury Project begins; C) Sputnik I is launched
A, C, B
C, B, A
C, A, B
A, B, C
How was the Apollo Project different than the Mercury Project?
The Mercury Project tested human survival in space; the Apollo Project sent astronauts to the moon.
The Mercury Project was launched by the Soviet Union; the Apollo Project was launched by the United States.
The Mercury Project was a major failure; the Apollo Project was a major success.
Mercury Project spacecraft were unmanned; Apollo Project spacecraft had human crews.
What did the first satellite in orbit, the first animal in orbit, and the first human in orbit all have in common?
They were all launched into space as part of the Apollo Project.
They were all launched into space as part of the Mercury Project.
They were all launched into space by NASA.
They were all launched into space by the Soviet Union.
Who was Neil Armstrong?
The first American astronaut launched into space
An astronaut who died when Apollo I caught fire
The astronaut who guided Apollo 13 safely back to earth
The first man to set foot on the moon
What decade saw the height of the "Space Race" between the United States and the Soviet Union?
The 1950s
The 1960s
The 1970s
The 1980s
Which term best describes the workers at NASA's Mission Control in Houston, TX?
Unprepared
Useless
Tireless
Mistake-prone
What was significant about the Apollo 13 mission?
It involved a dramatic rescue after a serious accident
It delivered the first astronauts to the moon
It was the last manned mission to the moon
It resulted in the deaths of three astronauts
What was the function of the lunar modules attached to Apollo spacecraft?
They provided the thrust and power needed to escape the Earth's gravity
They delivered astronauts from the main Apollo capsules to the moon's surface
They enabled the Apollo capsules to land safely on earth at the ends of their missions
They contained the computers and radios the astronauts needed to maintain contact with Mission Control
What role did President John F. Kennedy play in the Apollo Project?
He established NASA as a government agency
He convinced NASA to begin the Mercury Project
He recruited all of the Apollo astronauts
He promised that the U.S. would land a man on the moon
Which of the following statements is an opinion?
The Apollo Project allowed scientists to gain a greater understanding of the moon
The Apollo Project allowed astronauts to take the most breathtaking photos in history
The story of Apollo 13 was made into a successful Hollywood movie
NASA tightened its safety procedures after the Apollo I disaster
