Physics quizzes 4

A substance is heated from 15°C to 35°C. What would the same incremental change be when registered in Kelvin degrees?

20

Normal body temperature for humans is 37°C. What is this temperature in Kelvin degrees?

310

1 Calorie of food is equal to which of the following?

4 186 J

A 10-kg piece of aluminum (which has a specific heat of 900 J/kg×°C) is warmed so that its temperature increases by 5.0 C°. How much heat was transferred into it?

4.5 × 104 J

What happens to a given mass of water as it is cooled from 4°C to 0oC?

It expands.

A steel plate has a hole drilled through it. The plate is put into a furnace and heated. What happens to the size of the inside diameter of a hole as its temperature increases?

It increases.

Which of the following statements is true?

Objects do not contain heat.

Which of the following produces greenhouse gases?

all of the above

Which of the following properties can be used to measure temperature?

all of the above

Which best expresses the value for the coefficient of volume expansion, b, for given material as a function of its corresponding coefficient of linear expansion, a?

b = 3a

Heat is transferred from the equator to the polar regions primarily by

convection

Which one of the following processes of heat transfer requires the presence of a fluid?

convection

All metals of the same length will expand the same amount when heated through the same temperature range.

false

For water the heat of fusion is greater than the heat of vaporization.

false

Heat, like temperature, is measured in degrees.

false

Kelvin temperature is measured in calories.

false

Twenty grams of a solid at 70oC is place in 100 grams of a fluid at 20oC. Thermal equilibrium is reached at 30oC. The specific heat of the solid:

is more than that of the fluid.

The absolute temperature of an ideal gas is directly proportional to which of the following properties of the molecules of that gas?

kinetic energy

How does the heat energy from the sun reach us through the vacuum of space?

radiation

On a sunny day at the beach, the reason the sand gets so hot and the water stays relatively cool is attributed to the difference in which property between water and sand?

specific heat