Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
What is the relative density of a substance? |
The relative density of a substance is the number of times it is more dense than water. |
|
|
Formula for relative density |
Relative density "pr" is given by the ratio: density of substance ÷ density of water |
|
|
If both substances have the same volume then? |
Then relative density = mass of substance ÷ mass of water |
|
|
Subtopic |
Measuring length |
|
|
What is diameter? |
Length across a circle |
|
|
What is thickness? |
The smallest length of a rectangular block |
|
|
What is depth? |
Length below the surface of water |
|
|
What is Width/Breath? |
Length of the shorter side of a rectangle |
|
|
What will the choice of instrument depend on? |
• The size of the length to be measured •On the location of the length to be measured |
|
|
Subtopic |
Measuring Instruments |
|
|
What Is the vernier caliper? |
A vernier caliper is an instrument that measures internal or external dimensions and distances. |
|
|
What is a Mircometer screw gauge? |
The micrometer Is a tool designed to measure the thickness of an object. It measures dimensions smaller than the vernier caliper. |
|
|
What are the steps to using the Vernier Caliper? |
• Step 1: Grip the ball/object gently using the Jaws of the caliper. • Step 2: Read the main scale directly opposite the zero mark on the vernier scale. •Step 3: The mark on the vernier scale that is perfectly in line with the mark on the main scale gives the vernier scale reading which should be added to the main scale reading |
|
|
What are the steps to using the micrometer screw gauge? |
|
