Flashcards
Zubayr Rashid Unit 2.1 Science Flashcards
Flashcards do conjunto (20)
- 1Unit 2.1Making Things Bigger.
- 2Q1) Why do small things need to be magnified?So they become visible to us.
- 3Q2) What are objects that can only be seen by a microscopic called?Microscopic
- 4Q3) What type of microscope is used at many science laboratories?A Light Microscope
- 5Q4) What is unique about a monocular microscope?It only has one eyepiece or ocular lense
- 6Q5) What is a stereo microscope?A binocular microscope that you see in three dimensions.
- 7Q6) How is an image created?Light shines onto the specimen and is then reflected back up through the lens to create and image.
- 8Q7) What is the objective lens?The lens of the microscope closest to the stage
- 9Q8) Why is the stereo microscope also called the dissecting microscope?Because it is often used to examine and dissect small plants and animals.
- 10Q9) What is magnification?the action of magnifying something or the process of being magnified.
- 11Q10) What is the Field of View?How much you can see of the specimen when you look down a microscope.
- 12Q11) What is the maximum achievement of light microscopes?About x1000
- 13Q12) What is a micrometre?One-thousandth of a millimetre
- 14Q13) What do electronic microscopes use?Beams of tiny particles called electrons instead of light.
- 15Q14) What are two types of electron microscopes?Scanning Electron microscope (SEM)
& Transmission ELectron Microscope (TEM). - 16Q15) How far can electronic micrsocpes magnify up to?A Million Times
- 17Q16) Why are objects observed by microscope measured in very small unitsBecause they are even smaller than a full stop.
- 18Q17) In a Transmission Electron Microscope (TEM), is the specimen thin or thick?Thin
- 19Q18) True or False, Electronic microscopes are weaker than light microscopes?False
- 20Q19) What is the maximum magnification of a minocular or binocular microscope?X100