science

Question 1

atmosphere

Answer 1

the thin layer of gases that surrounds

Question 2

climate change

Answer 2

change in global weather patterns

Question 3

incomplete combustion

Answer 3

when a fuel burns with a lack of oxygen
atoms bonded to one carbon monoxide

Question 4

carbon dioxide

Answer 4

molecule containg two oxygen atoms bonded to one carbon atom

Question 5

greenhouse gas

Answer 5

a gas that stops heat escaping from earth into space

Question 6

carbon footprint

Answer 6

the total amount of carbon dioxide and other greenhouse gases given out over the life of a product

Question 7

particulate

Answer 7

small solid particle given off from vehicles as a result of incomplete combustion

Question 8

nitrogen oxides

Answer 8

toxic gases produced when the high temperature inside an engine makes nitrogen

Question 9

carbon monoxide

Answer 9

a molecule containg a carbon atom bonded to an oxygen atom

Question 10

force(n)

Answer 10

force=mass x acceleration

Question 11

weight(n)

Answer 11

weight X gravitational field strength

Question 12

Density (kg/m2)

Answer 12

Density=mass ÷ volume

Question 13

moments (N/M)

Answer 13

moments=force X distance

Question 14

terminal velocity

Answer 14

constant speed that a freely falling object