heat
The rise in alcohol in a thermometer is a result of the expansion of the alcohol due to increased temperature. As the temperature increases, the molecules in the alcohol move faster and spread out, causing the liquid to rise in the thermometer tube.
Heat makes molecules move. Alcohol, if used as a solvent, makes some molecules more mobile.
When the temperature goes down, the particles inside a thermometer lose kinetic energy and move slower. This causes them to contract and move closer together, leading to a decrease in volume. This change in volume is what allows the thermometer to measure lower temperatures.
The liquid in a thermometer does not move when turned upside down because of the properties of the liquid used (usually mercury or alcohol) and the vacuum-sealed tube design of the thermometer. This design prevents the liquid from freely moving when the thermometer is inverted.
On a hot day, the liquid inside the thermometer expands and rises, causing the temperature reading to increase. This occurs because heat causes molecules to move faster and spread out, resulting in the expansion of the liquid inside the thermometer.
An air thermometer has a bubble of liquid inside the tube and when the air inside of the tube heats up or cools down, the air takes up either more or less space inside of the tube, causing the bubble of liquid to either move upwards or downwards, indicating the temperature.
No, the molecules of the liquid inside a thermometer do not increase in speed when the thermometer is cooled. Instead, they lose energy and slow down, causing the liquid to contract and move down the scale. When the thermometer is heated, the molecules gain energy and speed up, leading to expansion of the liquid.
When a thermometer enters cold water, the temperature reading on the thermometer will decrease as the thermometer adjusts to the temperature of the water. The liquid inside the thermometer will contract and move down the scale, indicating the lower temperature of the cold water.
When a thermometer is warmed, the liquid inside, often mercury or colored alcohol, expands due to increased temperature. As the molecules gain energy, they move faster and occupy more space, causing the liquid to rise in the narrow tube of the thermometer. The dye, if present, simply helps to enhance visibility, rising along with the liquid as it expands.
No, heating a liquid makes it's particles move farther apart (makes the liquid expand). This is most readily observed in an old glass thermometer. As your temperature goes up (as you heat the liquid in the thermometer), the liquid inside expands and travels up the thermometer.
When the temperature increases, the particles of the liquid inside a thermometer also expand due to thermal expansion, causing the liquid to rise in the narrow tube of the thermometer. This increase in volume of the liquid is what is typically measured as an increase in temperature on the thermometer scale.
When a thermometer is exposed to warmth, the liquid inside it expands and rises up the tube. This is because heat causes the molecules in the liquid to move faster, taking up more space and causing the volume to increase. The expansion of the liquid is used to measure the temperature.