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German > Year 9 science test > Flashcards

Year 9 science test Flashcards

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German Verbs flashcards
1
Q

Equation to work out GPE

A

m x g x h

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2
Q

Equation to work out KE

A

1/2 x mass x velocity squared

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3
Q

Name all types of energy

A

Kinetic, Heat/thermal, light, gravitational potential, chemical, sound, elastic, electrical, Nucleur

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4
Q

What is conversion of energy?

A

Energy can NEVER be created or destroyed but it can be stored and transferred

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5
Q

What is the equation for efficiency?

A

Useful energy out
—————————
Total energy in

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6
Q

What is the gravity on earth?

A

10N/kg

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7
Q

What is kinetic energy?

A

The energy an object has because of motion, anything that’s moving has kinetic energy

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8
Q

Equation to work out the weight of something

A

Mass x gravitational field strength

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9
Q

What is gravity measured in?

A

N/kg

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10
Q

What is velocity measured in?

A

m/s

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11
Q

What is height measured in

A

M (metres)

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12
Q

What is mass measured in?

A

Kg

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13
Q

What does dissipated mean?

A

Scattered, spread out or diffused

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14
Q

What is conduction?

A

Energy transmitted through solids

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15
Q

What is convection?

A

Moving currents of air carry the heat away

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16
Q

What is radiation?

A

How surfaces radiate energy to the surroundings

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17
Q

What is GPE measured in

A

Joules

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18
Q

What is KE measured in?

A

Joules

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19
Q

What is microscopy?

A

The use of a microscope

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20
Q

What is an object in biology?

A

The real object or sample you’re looking at eg onion cells

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21
Q

What’s an image in biology?

A

The image you see when you look DOWN the microscope

22
Q

What does magnification mean?

A

How many times larger the image is than the object

23
Q

How do you work out magnification

A

Image size
—————-
Object size

24
Q

What’s is Resolution in biology?

A

A measure of how detailed the image is

25
Q

Advantages of a light microscope?

A

Less expensive, allows you to view samples of cells and specimen close up

26
Q

What type of cells are plant and animal cells

A

Eukaryotes cells

27
Q

What type of cells are bacteria cells?

A

Prokaryotes cells

28
Q

Name the parts of an animal cell

A

Cell membrane, nucleus, ribosomes, mitochondria, cytoplasm

29
Q

Name the parts of a plant cell

A

Cell membrane, nucleus, michondria, cytoplasm, ribosomes, cell wall, permanent vacuole, chloroplast

30
Q

Name the parts if a bacteria cell

A

Capsule, DNA, flagellum, pili, plasma membrane, ribosomes, cell wall, cytoplasm

31
Q

Steps on how to make a slide

A
  1. Choose a sample of a specimen and peel a thin layer of epidermal off it
  2. Place the layer of the cell on a slide
  3. Put a drop of water or iodine on top of the cell
  4. Lower the coverslip onto the cell and liquid using a toothpick or needle to prevent air bubbles
  5. Place the cell onto the microscope and look at it
32
Q

What are specialised cells?

A

Cells that are designed to carry out a specific role in the body

33
Q

What are the main parts of cells?

A

Nucleus, cell membrane, cytoplasm

34
Q

What is distillation?

A

Separated mixtures that contain liquid

35
Q

What is fractional distillation?

A

Separating mixtures of liquid

36
Q

What’s a fractionating column?

A

A tube full of little glass rods with a cooler at the top

37
Q

What is a soluble substance?

A

A substance that WILL dissolve in a liquid

38
Q

What is an insoluble substance?

A

A substance that WONT dissolve in a solvent

39
Q

What are the 3 states of matter?

A

Solid, liquid and gases

40
Q

What are the forces of attraction like in a solid?

A

Strong forces of attraction between particles

41
Q

What are the forces of attraction like in a liquid?

A

Weak force of attraction

42
Q

What are the forces of attraction like in a gas?

A

No forces or very weak forces

43
Q

What are the Properties of a solid?

A

Strong forces, arranged neatly in rows, can vibrate in their position, definite shape and structure, fixed position

44
Q

What are the Properties of a liquid?

A

Weak force oof attraction, free to move but fairly compact, definite volume, can flow, no arranged position

45
Q

What are the properties of a gas?

A

No/very weak force of attraction, free to move, no arranged shape, constantly moving with random motion

46
Q

What is chromatography?

A

A separation technique to separate soluble substances eg ink or food colouring

47
Q

How can you tell if a substance is pure in chromatography

A

Only produces one spot

48
Q

What is is called when a solid turns into a gas

A

Sublimation

49
Q

What’s it called when a gas is turned into a solid

A

Deposition

50
Q

What’s it called when a liquid turns into a gas?

A

Evaporation

51
Q

What’s it called when a gas turns into a liquid?

A

Condensation

German (7 decks)

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