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What suggests that a physical change has taken place in a ice cube?
A physical change in an ice cube can be suggested by observing a change in its shape, size, or phase. For example, if an ice cube melts into water or is crushed into smaller pieces, it indicates a physical change has occurred.
What variables do you use to calculate acceleration?
To calculate acceleration, you need to know the change in velocity (final velocity - initial velocity) and the time taken for that change to occur. Acceleration = (Change in velocity) / (Time taken).
Is cutting hair an example of a physical change and why?
Yes, cutting hair is an example of a physical change. It involves altering the appearance or state of the hair without changing its chemical composition. This change is reversible, as the hair can grow back.
Which physical quantity is given by slope of v-t graph?
The physical quantity given by the slope of a velocity-time graph is acceleration. This is because the slope represents the rate of change of velocity over time, which is how acceleration is defined (acceleration = change in velocity / time taken).
Is using a dehumidifier for moisture a chemical or physical change?
No. It is a physical change.
How do you know when a physical change is taking place?
The best way to know when a physical change is taking place is to observe. There will be a visible change in physical changes.
When liquid water evaporates which has taken place molecular change or chemical change?
Physical change.
Is cutting your hair a chemical change or a physical change?
cutting your hair is probably a physical change I don't know
What is making salt water to gargle for a sore throat a physical or chemical change?
Physical. It is a mixture of salt and water. No chemical change has taken place.
Is slicing turkey a physical or a chemical?
Slicing turkey represents a physical change, not a chemical change. The chemical composition of the sliced turkey is identical to the chemical composition of the intact turkey. Only a physical change has taken place.
Is metal cooled and taken out of a mold a physical or chemical change?
This would be a physical change because there is no change in the chemical make up of the metal and there is no creation of new substances there is simply a change in state for the metal.
When a cube of ice melts to form a puddle of water is it a physical change?
Yes. No chemical change has taken place, only a physical change. It can be undone (liquid water can be re-frozen)
Is transferring graphite from pencil to paper when writing a chemical or physical change?
physical change. You know that it is a physical change because it can be reversed. An example of a chemical change would be cooking an egg. Because you cannot reverse the process.
Is saliva chemical or physical change?
i know that its physical change because all you saliva is doing is making the food wet
Is slicing a banana a physical change or chemical change?
It's a physical change, because no chemicals are changing if I cut a banana.
What signs that a physical change has taken place in water?
hydrogen and oxygen gas are given off
What suggests that a physical change has taken place in a ice cube?
A physical change in an ice cube can be suggested by observing a change in its shape, size, or phase. For example, if an ice cube melts into water or is crushed into smaller pieces, it indicates a physical change has occurred.
