409980
Description
Flashcards by Millie Berrett, updated more than 1 year ago
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Created by Millie Berrett
over 10 years ago
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| Question | Answer |
| What are SI units? | SI units are the international base units for measurement. |
| What are the SI units for: Time Length Mass Temperature | Time- seconds Length- meter Mass- Kilogram Temperature- Kelvin |
| What are the SI units for: Amounts of something Electric current Luminous substance | Amounts of something- mole Electric current- ampere Luminous substance- candela |
| What pieces of equipment could be used to measure length? | -Rule -micrometer -vernier calipers |
| How do you read a vernier caliper? | |
| How do you read a micrometer? |
Image:
micrometer_ (image/jpg)
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| What is volume? | Volume is the quantity of space an object takes up. |
| How can volume be measured> | Volume can be measured using -a measuring cylinder -using formulas -using a displacement can |
| Formula for volume? | volume of block=length x width x height volume of cylinder= π x radius2 x height |
| How can time be measured? | Time can be measured on and analogue or digital stopwatch |
| When is finding the period useful? | Finding the period is often easier to measure than short time intervals |
| How do you find the time for one swing? | To find the time for one swing you can set up a pendulum. you measure the time it takes for 10 swings to occur then divide the time by the amount of swings |
| How can the mass of objects be measured? | The mass of objects can be measured using a balance |
| How can you measure the volume of a small solid? | The volume of a small solid can be done in a measuring cylinder. -Partially fill the cylinder and record the volume -Then place the object in and record the volume -The increase in level is volume of the solid |
| How is a displacement can used? |
-Fill can (water reached spout)
-slowly submerge object
-record volume in beaker.
Image:
displacement_can (image/jpg)
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| How is density calculated? | density = mass ------------ volume |
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