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Science
Measurement
| Question | Answer |
|---|---|
| What is measurement? | Measurement is a number that shows the size or amount of something. |
| What is length? | Length is the distance of space between two points,measured in metres. |
| What is temperature? | Temperature helps us measure how hot something is,the SI unit for temperature is kelvin (K) but in Ireland we can use Celsius. |
| What is area. | Area is the size of a surface,measured by the number of square units in a surface or shape. It is measured in metres squared,area= length x width. |
| What is volume. | Volume is the amount of space something takes up,formula for volume = Lenght x width x height = m cubed.(3) |
| What is the meniscus? | The meniscus is a curve of the surface of the water. |
| What is mass? | Mass is the amount of matter or particles in a object,measured in kg. |
| Name all the international system of units. | Mass= kilogram/g Lenght=metre Time= second. Temprature*= kelvin/celsius. Area= square metre Volume = cubic metre. |
| What is accuracy? | Accuracy is when measurements of a quantity are close to that quantiites real value. |
| How is the volume of an iregfulad solid measured? | Using water displacement Steps are: 1: fill graduated cylinder with water. 2 record initial volume of water 3. Place irelluhae object into graduated cyclones 4. Record final volume 5. -first volume - final volume to find volume of displaced water. |
| What does the displaced water do? | The displaced water in the cylinder occupies the same space as the irregular solid,meaning the volumes are equal. |
| Name a instrument used to measure the diameter of a pipe, | A vernier calliper,which The diameter of circular objects e,g pipe. |
| Name an instrument used to measure rivers on scaled maps. | An opisometer,which measured the length of curved lines,e.h rivers and roads on scaled maps. |
| Name an instrument used to measure a road. | A trundle wheel,which measured long curved lengths,e.g roads. |