Exam Corrections Flashcards Preview

JC Science > Exam Corrections > Flashcards

Flashcards in Exam Corrections Deck (18)
Loading flashcards...
1
Q

The process which enables the growth of living things

A

Cell division

2
Q

Tissue

A

Cells working together to carry out a shared function

3
Q

Functions of transpiration

A

Cool the plant
Supplies leaves with water for photosynthesis
Supplies plant with minerals

4
Q

Retina

A

Absorbs light at the back of the eye

5
Q

Organisms that can make their own food( e.g. Green plants)

A

Producers

6
Q

Word equation for photosynthesis

A

Chlorophyll
Water + Carbon Dioxide ———–> Glucose + Oxygen
Light

7
Q

Word equation for reaction of chosen alkali metal with water

A

Lithium + Water —-> Lithium Hydroxide + Hydrogen Gas

8
Q

How to turn a mixture of iron filings and sulphur powder to a compound

A

Heat the mixture

9
Q

Compound formed from sulphur powder and iron filings

A

Iron sulphide

10
Q

How do a sodium atom and chlorine atom combine to form sodium chloride?

A

Oppositely charged ions attract.

Na+1 and Cl-1 —->NaCl

11
Q

Define lever.

A

Any rigid body which is free to turn about a fixed point called a fulcrum

12
Q

What structure joins bone to muscle

A

Tendon

13
Q

Two areas of industry where chemistry plays an important role

A

Medicine and plastics

14
Q

What material could a heating coil be made from

A

Iron/nickel

15
Q

How is voltage/current varied in the experiment for Ohm’s law?

A

Variable resistor

16
Q

Why does a persons hair stand up if touching a charged globe

A

Like charges repel and static electricity

17
Q

What is the purpose of a resistor

A

Limits current in a curcuit

18
Q

What is the average voltage of domestic alternating current in ireland

A

220-240V