1. if a circular hole is cut in a sheet of metal - the base of a cookie sheet in

Question

1. if a circular hole is cut in a sheet of metal - the base of a cookie sheet in tin for example, and the sheet is heated in an oven, will the hole enlarge or contract? Select one: a. The hole will expand b. The hole contracts as all the metal around the hole expands into its space c. The hole stays the same
2. The constant of proportionally used in the ideal gas law is Select one: a. The coefficient of linear expansion b. Boltzmann's constant c. atmospheric pressure d. the speed of sound in a gas e. the coefficient of volume expansion
3. If a hollow copper cylinder filled to the brim with water at 20 degrees C are both heated to 91 degrees C Select one: a. the water will spill out of the cylinder because the water expands more than the cylinder b. the cylinder will expand more than the water so no water will spill out. c. the cylinder and the water will both expand the same amount and so the cylinder remains full to the brim. 1. if a circular hole is cut in a sheet of metal - the base of a cookie sheet in tin for example, and the sheet is heated in an oven, will the hole enlarge or contract? Select one: a. The hole will expand b. The hole contracts as all the metal around the hole expands into its space c. The hole stays the same
2. The constant of proportionally used in the ideal gas law is Select one: a. The coefficient of linear expansion b. Boltzmann's constant c. atmospheric pressure d. the speed of sound in a gas e. the coefficient of volume expansion
3. If a hollow copper cylinder filled to the brim with water at 20 degrees C are both heated to 91 degrees C Select one: a. the water will spill out of the cylinder because the water expands more than the cylinder b. the cylinder will expand more than the water so no water will spill out. c. the cylinder and the water will both expand the same amount and so the cylinder remains full to the brim. Select one: a. The hole will expand b. The hole contracts as all the metal around the hole expands into its space c. The hole stays the same
2. The constant of proportionally used in the ideal gas law is Select one: a. The coefficient of linear expansion b. Boltzmann's constant c. atmospheric pressure d. the speed of sound in a gas e. the coefficient of volume expansion
3. If a hollow copper cylinder filled to the brim with water at 20 degrees C are both heated to 91 degrees C Select one: a. the water will spill out of the cylinder because the water expands more than the cylinder b. the cylinder will expand more than the water so no water will spill out. c. the cylinder and the water will both expand the same amount and so the cylinder remains full to the brim.

Explanation / Answer

1. (A) the hole will expand.

{ whole frame expands symmterically}

2. P V = n R T

or P V m k T

where k -> boltzman constant

Ans(b)

4. (A)

water expands more than copper.

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