| Homework |
|
Topic: |
| Question 1 |
What is a vacuum? |
7G |
| Question 2 |
Describe three ways in which we could use less fossil fuels and explain why it is important that we use less fossil fuels. |
7I |
| Question 3 |
Sound waves can be reflected, transmitted or absorbed. Draw a diagram to show what this means. |
0 |
| Question 4 |
Why do sounds travel faster in steel that it does in air? Use ideas about particles in your answer. |
7L |
| Question 5 |
How can air pressure be described? Use an example to help e.g. the pressure inside a car tyre. |
7G |
| Question 6 |
Give some examples of renewable energy resources. |
7I |
| Question 7 |
Write down the name of three: a) contact forces b) non-contact forces |
7K |
| Question 8 |
What happens when you add more bulbs to a circuit in parallel and why? |
7J |
