What refracting telescopes use to focus light?
Refracting telescopes use lenses to focus light, which bends or refracts the light to a focal point.
Which colour has the largest wavelength in the spectrum of white light?
In the visible spectrum, red light has the longest wavelength.
What does the abbreviation MRI stand for?
MRI stands for Magnetic Resonance Imaging, a technique used in medical imaging.
How many orbits does each GPS satellite complete in 24 hours?
Each GPS satellite completes two orbits in 24 hours.
A Reflecting Telescope consists of:
A reflecting telescope uses mirrors, typically a primary and a secondary mirror, to gather and focus light.
What is the main purpose of a telescope?
The main purpose of a telescope is to observe distant objects in space by collecting and focusing light or other forms of electromagnetic radiation.
Which of the following is not a type of telescope?
Projecting is not a recognized type of telescope. The main types are refracting and reflecting telescopes.
What does white light consist of?
White light consists of seven different colors, which can be seen when it is split through a prism, forming a spectrum.
What instrument is used to split white light into its seven colours?
A spectroscope is used to split white light into its component colors, revealing the spectrum.
Who was the first person in human history to observe planets through a telescope?
Galileo Galilei was the first person to observe planets through a telescope, making significant astronomical discoveries.
What does a Refracting Telescope use to form images?
A refracting telescope uses lenses to bend light and form images.
What is the function of the primary lens in a Refracting Telescope?
The primary lens in a refracting telescope is designed to focus incoming light rays to form a clear image.
What is the purpose of the eyepiece in both types of telescopes?
The eyepiece in telescopes is used to magnify the image formed by the objective lens or mirror, allowing the viewer to see a detailed image.
What type of telescope is the Hubble Space Telescope?
The Hubble Space Telescope is a reflecting telescope, which uses mirrors to capture images of distant astronomical objects.
Which colour of visible light has the largest wavelength?
In the visible light spectrum, red has the largest wavelength.
Which of the following is not a component colour produced by a spectroscope?
Black is not a component color produced by a spectroscope. The colors are typically red, orange, yellow, green, blue, indigo, and violet.
What type of spacecraft is used to gather data without humans on board?
Unmanned spacecraft are used to gather data without humans on board, often for scientific research and exploration.
Which of the following is an unmanned spacecraft?
The Opportunity Rover is an example of an unmanned spacecraft designed for exploration and data collection on Mars.
What was special about Venera-9?
Venera-9 was special because it was the first spacecraft to orbit and land on Venus, providing valuable data about the planet.
The use of astronomy and technology to explore outer space is called:
The use of astronomy and technology to explore outer space is called space exploration.
Which space-based technology helped in developing the breast biopsy system?
Technology developed for the Hubble Space Telescope contributed to the development of the breast biopsy system.
What is the primary function of the Global Positioning System (GPS)?
The primary function of the Global Positioning System (GPS) is to determine the precise location of a GPS receiver anywhere on Earth.
What is the minimum number of GPS satellites visible from anywhere on Earth at any time?
The minimum number of GPS satellites visible from anywhere on Earth at any time is four. This is necessary to determine a precise location using trilateration.
What is a wavelength?
A wavelength is defined as the distance between two consecutive crests or troughs in a wave.
What happens to the wavelength if crests or troughs are closer together?
If crests or troughs are closer together, the wavelength becomes shorter. Wavelength is inversely related to the frequency of the wave.
Who performs weather forecasting using satellites?
Meteorologists perform weather forecasting using data collected from satellites.
What is space debris?
Space debris refers to non-operational objects left in space after missions, such as defunct satellites, spent rocket stages, and fragments from collisions.
How are digital cameras used with telescopes?
Digital cameras are used with telescopes to capture images of celestial objects in space, allowing for detailed observation and analysis.
What role did satellites play in the invention of solar cells?
Satellites played a crucial role in the development and use of solar cells as the primary source of power in space, driving advancements in solar technology.
What is the function of solar panels in a spacecraft?
The function of solar panels in a spacecraft is to supply electric power by converting sunlight into electricity.