Your mass will stay the same no matter where you go.
What do you mean increase, decrease, or stay the same? Do you mean the temperature?
A gas (including air) will expand if the temperature increases. That means the same mass of gas will have a larger volume. Since density is mass / volume, that means the density will decrease.
Density is a characteristic of a given material. Water, for example, has a certain density (which is somewhat dependent upon temperature but let's say that the temperature is constant). It does not matter how much water you have, it will all have the same density. One teaspoon has much less mass, but the same density as an entire ocean.
Air pressure is based on the density of molecules in the atmosphere. Density is mass divided by volume or D=M/V. By increasing the mass of air, the density increases. Decreasing volume also causes the density to increase. A high pressure zone means air has more mass per unit volume. A low pressure zone means the air has less mass per unit volume.
The increase in pressure signifies the increase in the number of collisions of the gas atoms with its container, this can result from 2 factors (when temperature is constant): either there is gas added, or the volume of the container has been decreased. Thus the Density, which is mass (which can be equated to amount of gas) divided by volume, and increase in mass or decrease in volume will effectively increase the density of the gas.
Your mass remains the same.
With constant mass, a decrease in volume will increase the the density. Conversely, an increase in volume will decrease the density.
The mass remains the same.
It decrease.
The relevant law: F = ma, which can be reorganized as a = F / m. If you decrease the mass, the acceleration will therefore increase, since the mass is in the denominator.
If the volume remains the same, the density will increase in direct proportion to the increase in mass.
it will decrease as radius increase keeping mass same
No. Your mass would remain the same but your weight would increase greatly.
density decreases
Depends on the other conditions. If the volume remains constant, the density will remain the same (but the pressure will increase). If the pressure remains constant, the volume will increase - and therefore the density (mass / volume) will decrease.
False. Since Force=mass*acceleration, decreasing mass will increase acceleration for the same applied force.
By squeezing the foam you are decreasing its volume, whereas its mass remains roughly the same. Therefor, as density is mass/volume, a decrease in volume results in and increase in density.