Gravity as well as electrostatic and magnetic attraction and repulsion provide real life examples of forces being exerted by one object on another without them being in contact with each other. Many children are aware of magnetism and have played with fridge magnets. They may also have played with picking up small pieces of paper or other objects with a comb charged by rubbing against the sleeve of a jumper or by pulling through hair. They will also be aware that things fall towards the Earth. However, they are unlikely to think about these experiences as involving forces, i.e. pushes and pulls.
It is common for students to think that all metals are attracted by magnets, and that the size of magnets determines their strength.
The specific heat capacity of the material the object is made of. The mass of the object. The temperature change experienced by the object.
Heat is a form of energy. The energy is tied to the molecules of the object. The faster the molecules in an object vibrate, the more heat energy it contains and therefore the more hotter it is. By measuring the amount of vibration in an objects molecules, you can calculate how hot it is.
I'm not 100% sure about this though.heat is some kind of radiation right.. when heat radiation contact an object,the molecules on the surface of the object start vibrating in a specific way.so when those molecules start to collide on each other,a chain reaction occur as long as the source remains or found a new one. let me know if this isn't right.. :)
You can typically tell if heat transfer has occurred between two objects by monitoring changes such as temperature increase or decrease, physical changes like melting or freezing, or the flow of energy from a higher temperature object to a lower temperature object.
Well, not only three that i know... Keeping a spoon in a boiling pot of water and waiting 5 minuites and touching it again can burn your hand. the heat transfered from the water to the spoon and now the spoon in hot.
Put you hand on the rail and if you feel heat, then it coming.
The specific heat capacity of the material the object is made of. The mass of the object. The temperature change experienced by the object.
no
Yes
The brain is the center of nerves. It sends shocks to your body letting you know that you are either in danger or something as simple as touching another object.
What type of auto is this? I may be able to help. Let me know.
The one that is cooler will become warmer.
I think they create friction and that creates heat. I don't really know though, that was just a guess.
Heat is a form of energy. The energy is tied to the molecules of the object. The faster the molecules in an object vibrate, the more heat energy it contains and therefore the more hotter it is. By measuring the amount of vibration in an objects molecules, you can calculate how hot it is.
If your vent dryer is clogged there will be no heat coming out. It will also take longer for things to dry.
Heat energy (gained/lost)= mass x specific heat capacity x temperature(rise/fall) Now with this expression we come to know that for a given mass and with a given amount of heat energy in joule, as sp. heat cap is more then rise / fall in temperature will be less and vice versa.
By immersing the object in water and measuring the initial and final temperatures of the water, along with the mass of the water and the object, you can calculate the amount of heat transferred. Using the equation Q = mcΔT (where Q is heat, m is mass, c is specific heat, and ΔT is change in temperature), you can then rearrange the equation to solve for the specific heat of the object.