Recent content by threy

My apparatus includes inclined plane, ticker tape, ticker timer, wooden block, trolley and plasticine. Is it correct to measure the length of the ticker tape strip to indicate the change in acceleration? Why?

Why does water boil faster in high region than low region?

To test mass affects acceleration. is it correct to change the mass of plasticine attached to the trolley and measure the length of the ticker tape strip with the constant variable be the angle of the inclined plane?

I seem to not be able to differentiate between the two of these phenomenons. Please give me some example in daily life to show the difference between them.

I know what damping is but I have no idea what resonance is? Please explain it in simple words.

I don't understand it.

"you know for a fact that a bowling ball drops more quickly than a feather. This is true, but it has nothing to do with gravity. The only reason this occurs is because the earth’s atmosphere provides resistance. " friction??

f = 1/T?? What does it mean? What does this formula means: f = 1/T I don't get this. Please explain the relationship between frequency and period and the formula above thanks :)

What does living in exponential times mean?

When tiny droplets of hot water touch your hand you don't feel much pain but when large amount of hot water spills on your hand it will cause serious injuries. Why? - is this due to the heat energy in the tiny droplets of water is lesser so the energy transferred to the hand is lesser...

How does temperature affect density?

A spark does not cause injury when it strikes the skin of a child. If you touch the burning stem, it can cause severe burn on your fingers? WHY? What's the difference between specific heat capacity and heat capacity?

Dynamic and aerodynamic?

I understand that high velocity will create a region of low pressure and a net upward force will lift up the aerofoil. And does it mean that when the plane is about to board, the aerofoil will be inverted so that the higher pressure will push the plane down? How does inverted aerofoil work as...

Fluid flows faster in a narrow tube which results in low pressure and high pressure in a large tube?