Sample Test: Physical Science

Physical Science: sample test

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1 Question 1 of 10

What is the formula of water?

A HO2 B H2O2 C H2O D OH3

2 Question 2 of 10

True or false: respiration is an exothermic reaction.

A True, because it releases energy from food B False, because it takes in energy from the cell C True, because it takes in energy from the air D False, because it is a physical change only

3 Question 3 of 10

True or false: chlorine is an alkali metal.

A False, because chlorine is a halogen in Group VII B False, because chlorine is a noble gas in Group VIII C True, because chlorine reacts with water D True, because chlorine is found in Group I

4 Question 4 of 10

Which description of iron as a transition metal is best?

A A soft metal of low density with white compounds B A hard dense metal with coloured compounds C A soft shiny metal that floats on water D A brittle non-metal with colourless compounds

5 Question 5 of 10

Which experiment is evidence of diffusion in a gas?

A Ice melting in a glass B Smell of perfume spreading across a room C A balloon bursting D Salt dissolving at the bottom of a beaker

6 Question 6 of 10

Which pair contains two halogens?

A Fluorine and neon B Sodium and chlorine C Bromine and krypton D Fluorine and bromine

7 Question 7 of 10

A filament burns away in air. Why does a lamp filled with argon last longer?

A The argon stops oxygen from reaching the filament B The argon cools the filament below its melting point C The argon reacts with oxygen to protect the filament D The argon makes the filament thicker as it works

8 Question 8 of 10

CuO + H2 → Cu + H2O. Which substance is oxidised?

A Copper(II) oxide B Copper C Water D Hydrogen

9 Question 9 of 10

The relative atomic mass (Ar) of an element compares the mass of its atoms with what?

A The mass of one hydrogen atom in grams B The mass of one oxygen atom in grams C One twelfth of the mass of a carbon-12 atom D The whole mass of a carbon-12 atom

10 Question 10 of 10

Match each compound (1 to 3) with its colour (P to R). 1 copper(II) sulfate solution, 2 iron(II) compounds, 3 iron(III) compounds. P pale green, Q orange-brown, R blue. Which set is correct?

A 1 = P, 2 = Q, 3 = R B 1 = Q, 2 = R, 3 = P C 1 = R, 2 = Q, 3 = P D 1 = R, 2 = P, 3 = Q

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