Question

In order to compare the thermal conductivities of two different insulators, a scientist pours hot water into two beakers.
The different insulators are wrapped around the beakers.
The scientist records the initial temperatures of the hot water.
a State two factors that should be kept constant in order to make the experiment fair.
1 Same amount of hot water
2 The same size beakers
(2)
b State two further measurements that the scientist should make.
1
2
(2)
c Explain how the scientist will determine which is the better insulator.

Answer 1

Answer:

There are different ways to investigate methods of insulation. In this practical activity, it is important to:

make and record measurements of temperature and time accurately

measure and observe the effect of different materials as thermal insulators

use appropriate apparatus and methods to measure the effectiveness of different materials as thermal insulators

Explanation:

Answer 2

There are different ways to investigate methods of insulation. In this practical activity, it is important to:

1. Make and record measurements of temperature and time accurately.

2. Measure and observe the effect of different materials as thermal insulators.

3. Use appropriate apparatus and methods to measure the effectiveness of different materials as thermal insulators.

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