Gemma Young and Mark Levesley Solutions for Exercise 10: End of chapter review
Gemma Young Science Solutions for Exercise - Gemma Young and Mark Levesley Solutions for Exercise 10: End of chapter review
Attempt the free practice questions from Exercise 10: End of chapter review with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Science Stage 8 : Student's book solutions are prepared by Experienced Embibe Experts.
Questions from Gemma Young and Mark Levesley Solutions for Exercise 10: End of chapter review with Hints & Solutions
Which pole of a magnet points to the north pole of the Earth? Explain your answer.
Omar investigated how the number coils around an iron core affects the strength of an electromagnet. He measured the strength by measuring how many paper clips it picked up. He obtained the results in given table.
| Number of coils | Number of paper clips picked up |
Draw the field around two magnets south poles facing each other.
Sarah did an investigation into how the type of core in an electromagnet affects its strength. She measured how many paper clips each picked up. She obtained the results shown in table.
| Core type | Number of paper clips picked up |
| Air | |
| Copper | |
| Iron |
What was the independent variable in this investigation?
Sarah did an investigation into how the type of core in an electromagnet affects its strength. She measured how many paper clips each picked up. She obtained the results shown in table.
| Core type | Number of paper clips picked up |
| Air | |
| Copper | |
| Iron |
What was the dependent variable in this investigation?
Sarah did an investigation into how the type of core in an electromagnet affects its strength. She measured how many paper clips each picked up. She obtained the results shown in table.
| Core type | Number of paper clips picked up |
| Air | |
| Copper | |
| Iron |
Name one control variable in this investigation?
Sarah did an investigation into how the type of core in an electromagnet affects its strength. She measured how many paper clips each picked up. She obtained the results shown in table.
| Core type | Number of paper clips picked up |
| Air | |
| Copper | |
| Iron |
Steel is a mixture of iron and carbon. Predict how many paper clips a steel core could pick up. Explain your answer.
Use the diagram to explain how an electric bell works.
