Systems for looking into space

What is the main purpose of a telescope?

• To measure distance

• To see distant objects in more detail

• To make objects look smaller

• To create images of planets

Which scientist invented the telescope?

• Isaac Newton

• Albert Einstein

• Galileo Galilei

• Nicolaus Copernicus

What type of telescope is used for collecting radio waves?

• Optical telescope

• Radio telescope

• Magnifying telescope

• Satellite telescope

What does the eyepiece lens in a telescope do?

• Collects light

• Magnifies the image

• Focuses radio signals

• Measures the distance to stars

Where is the Southern African Large Telescope (SALT) located?

• Johannesburg

• Pretoria

• Karoo

• Cape Town

Which of the following statements is true?

• Optical telescopes collect radio waves

• Radio telescopes work by magnifying objects

• Optical telescopes are used mainly at night

• Telescopes cannot work in space

Which of the following is the most powerful radio telescope array in the southern hemisphere?

• SALT

• Hubble Space Telescope

• MeerKAT

• Galileo's telescope

What problem does Earth's atmosphere cause for optical telescopes?

• It makes the image blurry or fuzzy

• It magnifies the image too much

• It collects too much light

• It prevents telescopes from working at night

What does the 'magnification' of a telescope refer to?

• The amount of light it collects

• The distance it can see

• How much bigger an object appears

• The size of the telescope

What is an array in the context of telescopes?

• A group of telescopes working together

• A large single telescope

• A type of lens used in telescopes

• A satellite used for observation