0
Magnets and iron. A compass has a needle that has a magnatized end. If there are outside objects near then it will give a false reading. I have placed a knofe in the console before and had my compass read 20 degrees off. If this had gone undetected the results could have been the difference between running aground or getting lost or getting where I wanted to go. Car keys will do the same thing.
Add your answer:
Earn +20 pts
How can you fix a compass that is next to a magnet?
To fix a compass near a magnet, move the compass away from the magnet to ensure accurate readings. If that doesn't work, try demagnetizing the compass by rubbing a strong magnet in the opposite direction. Finally, calibrate the compass according to manufacturer instructions to reset its accuracy.
Where should a boy compass be located?
A boy's compass should be securely attached to his person, such as on a backpack strap or a belt loop, for easy access and use while hiking or navigating outdoors. It should be kept away from any electronic devices or metal objects that could interfere with its accuracy.
How do you use a compass with lens?
To use a compass with a lens, hold the compass level and look through the lens to read the compass direction. The lens helps in magnifying the needle and making it easier to see the direction accurately. Ensure the compass is away from any metal objects or magnetic interference to get an accurate reading.
What is local attraction and how can we minimize its effect in compass surveying?
Local attraction refers to the effect of nearby magnetic objects on the accuracy of a compass survey. To minimize its impact, you can keep the compass away from metal objects, power lines, or electronic devices, take multiple readings and average them, or use a different type of compass like a gyrocompass which is less susceptible to local attraction.
What is necessary for a compass to work as a navigation tool?
A compass needs a magnetic needle that aligns with the Earth's magnetic field to indicate the cardinal directions (north, south, east, west). Additionally, a compass should be used away from magnetic interference sources to ensure accurate navigation readings. Familiarity with the compass and how to interpret its readings is also necessary for effective navigation.
Where is the best position to place a rain gauge?
The best position to place a rain gauge is in an open area away from obstacles like buildings or trees that could affect the accuracy of the measurement. It should be placed on level ground and away from any sources of water runoff to ensure proper collection of rainfall. Additionally, it should be easily accessible for regular emptying and maintenance.
What should be done with the last bit of liquid remaining in the pipet after delivery?
The last bit of liquid in the pipette should be blown out gently to ensure accurate and precise delivery of the intended volume. Avoiding the introduction of air bubbles in the solution is important to maintain the accuracy of the measurement.
What technology will you need if you are far away?
Far away from what? A compass? A GPS? What are you asking for?
How do you prevent undue magnetic influences on a compass?
To prevent undue magnetic influences on a compass, ensure it is kept away from magnetic materials like iron, steel, or electronic devices. Calibrate the compass regularly and hold it level when taking readings. Store the compass in a protective case when not in use to avoid interference from external magnetic fields.
Where will a compass point if you face south?
If you point the north side of the compass away from you the compass will point south. Because the needle always points north (magnetism).
What metal does a compass have to be away from to work?
Iron or steel. Since it is a magnet, a compass will point to iron instead of pointing North.
Where are thermometer kept?
Thermometers are typically kept in a cool, dry place away from direct sunlight and extreme temperatures to ensure accuracy. They are often stored at room temperature in a designated drawer or cabinet. It's important to follow the manufacturer's instructions for proper storage to maintain the thermometer's accuracy.
