Science Practice

Look at the symbols used in electrical circuits. Which symbol shows an ammeter?

• A

• B

• C

• D

Look at the symbols used in electrical circuits. What is the name of the component shown by symbol C?

• Voltmeter

• Buzzer

• Variable Resistor

• Fixed Resistor

Mia wants to measure the voltage across a lamp.

Complete the circuit diagram to show how Mia connects a voltmeter to measure the voltage.

Look at the diagram of part of the Periodic Table of the elements. Use the Periodic Table to write the electronic structure of aluminium, Al.

Look at the diagram of part of the Periodic Table of the elements. How many protons are in an atom of fluorine, F?

• 7

• 8

• 9

• 10

A sodium atom, Na, forms a sodium ion, Na+. Describe, in terms of electrons, how a sodium ion is made from a sodium atom.

Look at the table. It shows information about some properties of the Group 1 elements. Describe the trend in boiling point as you go down Group 1.

Look at the table. Which property does not show a clear trend?

• Melting point

• Boiling point

• Density

• Atomic radius

Look at the table. Predict the melting point of rubidium.

Look at the table. Which element is the least reactive?

• Li

• Na

• K

• Rb