Physical Science - Levels 5 - 7
[ Answers ]
A clamp stand was set up as shown in the diagram. The rod of the stand was heated strongly. As it got hotter and hotter, the pointer moved from the zero on the scale over to its present position.
| |
|
Physical Science - Levels 5 - 7[ Answers ] | |
|
|
A top class sprinter can run the 100m race in 10 seconds. Calculate his average speed in m/s. Show your working.
A clamp stand was set up as shown in the diagram. The rod of the stand was heated strongly. As it got hotter and hotter, the pointer moved from the zero on the scale over to its present position.
|
|
|
Explain in terms of atoms, why this happened.
|
|
|
What happens as the stand is allowed to cool?
|
|
|
When a gas is heated it will expand much more than a solid. Use your understanding of atoms and molecules to explain why this is so. |
|
|
|
|
|
|
|