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When a substance moves from one state to another what kind of change occurs?
Wiki User
∙ 12y ago
a phase change
Wiki User
∙ 12y ago
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Occurs when the plasma membrane surrounds a large substance inside the cell and moves it outside the cell?
exocytosis
Is it true melting is considered an sublimation change because energy is gained by substance as it changes stae?
Melting is a phase change in which a substance changes from the solid state to the liquid state. Sublimation is a phase change in which a solid moves directly into the gas phase. Both melting and sublimation are two types of physical change.
The speed of a sound wave depends on properties of the medium occurs when a sound wave moves from one medium into another in which its speed is different?
refrction
Why is the meting and freezing point of a substance the same?
Melting is simply the reverse of freezing. The secret to it is that it takes quite a bit of heat movement to make a substance change from the freezing point. Heat moves out of substance in freezing, and heat moves into a substance to make it thaw.
What happened to particles of a substance as its temperature increases?
It moves faster.
What occurs when a substance moves from liquid to gas?
This change of phase is called vaporization and is a physical phenomenon; the chemical nature of the molecules was not changed.
Does frequncy of sound waves chance as it moves from on e substance to another if so what difference it makes for example from air to vacuum to water to solid materials?
The frequency of sound waves does not change in moving from one substance to another. Remember that vacuum is not a substance, but a lack of substance. Sound can't exist there.
Where and when does diffusion occur?
Diffusion occurs when there is a concentration gradient i.e. a substance moves from higher to lower concentration.
What occurs when the plasma membrane surround large substance inside the cell and moves it outside the cell?
exocytosis
Occurs when the plasma membrane surrounds a large substance inside the cell and moves it outside the cell?
exocytosis
How heat move'?
Thermal energy that can move from one substance to another is called heat. Heat always moves from a warmer substance to a cooler one. An increase in temperature means that heat moves into a substance.
When does speed occur?
Speed occurs when a body moves with respect to some frame of reference.
What is the astronomical event that occurs when one celestial object moves into the shadow of another?
"eclipse"
What is glide and shift in intonation?
A shift occurs when there is a movement from one tune to another between syllables. A glide occurs when the voice moves from one tone to another midsyllable.
If effort is applied and nothing moves is work done?
No work because no change in position occurs.
What happens when a light ray moves from one substance to another?
The speed changes. (and sometimes the angle.)
Which refers to the change in wavelength tht occurs when an object moves toward or away from a source?
doppler effect
