Thermal energy always moves from an object with a higher temperature to an object with a lower temperature. When thermal energy is transferred in this way, the warm object becomes cooler and the cool object becomes warmer.
Q. Which an object is cooled its size?
When an object is cooled, its size contracts or becomes smaller. This is called contraction.
Table of Contents
- Q. Which an object is cooled its size?
- Q. What happens when temperature between particles of matter decreases?
- Q. Which can give off more heat a glass full of hot water or a pitcher full of hot water that has the same temperature?
- Q. What is the temperature of 1 cup of boiling water?
- Q. What similarities and differences did you observe when a drop of dye was added to each container?
- Q. In which container did the dye spread the fastest?
- Q. How temperature is related to the movement of particles of dye?
- Q. Where will food coloring powder dissolve faster in water or in cooking oil?
- Q. In which of the following water temperature will the movement of particles be faster?
Q. What happens when temperature between particles of matter decreases?
As the temperature of a solid, liquid or gas increases, the particles move more rapidly. As the temperature falls, the particles slow down. If a liquid is cooled sufficiently, it forms a solid.
Q. Which can give off more heat a glass full of hot water or a pitcher full of hot water that has the same temperature?
Which can give off more heat: a glass full of hot water, or a pitcher full of hot water that has the same temperature? Neither one can give off heat. The glass of water can give off more heat.
Q. What is the temperature of 1 cup of boiling water?
Investigation: Take a cup of boiling water and measure its initial temperature. Then record the temperature of the water each minute for thirty minutes….
| Time | Temperature |
|---|---|
| 1 | 200 |
| 2 | 189 |
| 3 | 180 |
| 4 | 174 |
Q. What similarities and differences did you observe when a drop of dye was added to each container?
Answer Expert Verified -The rate of the dye totally mixed with each container varies. -The dye mixes the fastest when dropped to the container having a hot water; the dye mixes slower when dropped to the container having tap water; and the dye mixes the slowest when dropped to the container having cold water.
Q. In which container did the dye spread the fastest?
Answer. the dye scatter fastest in the container with hot water because the dye easily dissolve in hot water. the slowest is the dye with cold water because cold water can’t dissolve easily.
Q. How temperature is related to the movement of particles of dye?
The hot water causes the food coloring to diffuse faster. At higher temperatures, particles move faster. This faster movement allows diffusion to occur more quickly.
Q. Where will food coloring powder dissolve faster in water or in cooking oil?
The food coloring you add to the water is pushed around by the water molecules. Since the molecules in warm water move around faster, the food coloring spreads out quicker in the warm water than in the cold water. Repeat this experiment with vegetable oil instead of water.
Q. In which of the following water temperature will the movement of particles be faster?
Answer. Explanation: because it will nearly reach the boiling point which is 100 degrees and in this stage the particles are more excited so it will move fast.
