Year 8 - Domestic Electricity, Periodic Table and Gas Exchange

Question 1

What other symptom would be common to an asthma attack?

Accepted Answer

excess mucus production

Question 2

Which of the following is the most reactive?

Accepted Answer

Fluorine

Question 3

Which of the following is the most reactive?

Accepted Answer

Caesium

Question 4

What is the charge carrier which causes lightening?

Accepted Answer

electrons

Question 5

Label part 8

Accepted Answer

Trachea

Question 6

1 KWh cost 10p. A Kettle has a power rating of 150kW and is used for half an hour. Cost?

Accepted Answer

£7.50

Question 7

What causes lightening to strike the ground?

Accepted Answer

high p.d.

Question 8

What is the unit for current?

Accepted Answer

amps

Question 9

Which of the following is made mostly of water?

Accepted Answer

plasma

Question 10

What is the role of part D

Accepted Answer

Hold open airways during low pressure

Question 11

Which of the following is an alkali metal?

Accepted Answer

Lithium

Question 12

Which of the following is the least reactive?

Accepted Answer

Lithium

Question 13

How does this organism exchange gases with its environment?

Accepted Answer

Spiracles

Question 14

Which unit is Power measured in?

Accepted Answer

Watts

Question 15

What happens during exhilation?

Accepted Answer

diaphragm relaxes and moves up

Question 16

Label part 10

Accepted Answer

Bronchiole

Question 17

Which of the following is the least reactive?

Accepted Answer

Argon

Question 18

Which of the following is a transition metal

Accepted Answer

Copper

Question 19

Identify 2 ways the object in the picture is specialised to its function

Accepted Answer

It has a short diffusion pathway which is 1 cell thick, it has elastic fibres in order to stretch and recoil

Question 20

Label part 9

Accepted Answer

Bronchi

Question 21

What happens during inhilation?

Accepted Answer

diaphragm contracts and flattens

Question 22

Which substance are these cells responsible for carrying?

Accepted Answer

O2, CO2

Question 23

A hairdryer has a power rating of 2500W and has a voltage of 500V across it. Calculate I

Accepted Answer

5

Question 24

Which of the following is a nobel gas?

Accepted Answer

Argon

Question 25

What is the unit for force?

Accepted Answer

Newton

Question 26

What do the star shaped objects represent in this computerised image

Accepted Answer

platelets

Question 27

Label part 6

Accepted Answer

Diaphragm

Question 28

What do you get when you react chlorine with potassium bromide?

Accepted Answer

Potassium chloride

Question 29

Blood is in the right atria it will have.........

Accepted Answer

low levels of oxygen

Question 30

A positively charged object and a neutral will.......

Accepted Answer

attract

Year 8 - Domestic Electricity, Periodic Table and Gas Exchange

Questions 30

Year 8 - Domestic Electricity, Periodic Table and Gas Exchange

Questions 30