You are given a hammer, a battery, a bulb, wires and a switch
(i) How could you use them to distinguish between samples of metals and non-metals?
(ii) Assess the usefulness of these tests in distinguishing between metals and non-metals. [3 MARKS]
You are given a hammer, a battery, a bulb, wires and a switch
(i) How could you use them to distinguish between samples of metals and non-metals?
(ii) Assess the usefulness of these tests in distinguishing between metals and non-metals. [3 MARKS]
Each point: 1.5 Mark
1. We can use a hammer to beat the sample of metals and non-metals.
After beating metal changes into thin sheet (due to malleable) and at the time of strike sound is also produced (due to sonorous).
But non-metals are broken into small pieces due to brittle nature and do not produces sound.
2. A battery, a bulb, wires and a switch is used to set up a electrical circuit and test the samples of metals and non metals in this circuit.
We find that metals are good conductor of electricity and non-metals are bad conductor of electricity.
Each point: 1.5 Mark
1. We can use a hammer to beat the sample of metals and non-metals.
After beating metal changes into thin sheet (due to malleable) and at the time of strike sound is also produced (due to sonorous).
But non-metals are broken into small pieces due to brittle nature and do not produces sound.
2. A battery, a bulb, wires and a switch is used to set up a electrical circuit and test the samples of metals and non metals in this circuit.
We find that metals are good conductor of electricity and non-metals are bad conductor of electricity.
