Pot 1.4 Test
1. If the temperature outside is 20 ° C, what is it in °F?
a. 68 °F
b. 43 °F
c. 72 °F
2. If the temperature outside is 35°C, what is it in °F?
a. 1.7 °F
b. 95 °F
c. 67 °F
3. In a room, heat from a space heater will travel ____________________.
a. from the warmer area around the heater, to the cooler area of the room
b. from the cooler area of the room to the warmer area of the room
c. from the ceiling to the floor
4. The reason that we insulate our home is ____________________.
a. to reduce heat loss in the winter
b. to reduce heat gain in the summer
c. both a and b
Pot 1.4 Test
5. The table below shows times required for water to evaporate from identical containers. Which
of these is the best question to ask before developing a reasonable hypothesis to explain the
data?
a. How does the rate of evaporation change when a different container is used?
b. Why does water exist as a solid at 15 °C and as a liquid at 25 °C?
c. Why does a lower temperature slow the rate of evaporation?
6. The diagram shows an experimental setup. Which of these questions was this experiment
designed to answer?
Pot 1.4 Test
a. Does water boil when exposed to air?
b. Does air expand when heated?
c. Will heat turn a gas into a solid?
7. Convert 491 K to degrees Fahrenheit.
a. 103 F
b. 424.4 F
c. 273 F
8. Determine minimum force required on the left side of the hydraulic lift to raise the car on the
right side?
Pot 1.4 Test
a. 11.6 N
b. 11.5 N
c. 0.056 N
9. A balloon is inflated to 15 L at 20 °C. What will be the new volume of the balloon if it is put in
a freezer at 0 °C?
a. 13.98 L
b. 16.10 L
c. 0 L
10. A 5.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes
from 25 °C to 175 °C. Calculate the specific heat capacity of iron in J/g °C.
a. 1.23 J/g °C
b. 0.0055 J/g °C
c. 0.81 J/g °C
11. The buoyant force that a fluid exerts on objects is increased when there is an increase in the
fluids —
a. acidity
b. solubility
c. density
12. Which diagram below correctly shows the direction in which heat would travel through a metal
rod?
Pot 1.4 Test
a.
b.
c.
13. A solar heater uses energy from the sun to heat water. The heater’s panel is painted black to
-
a.
improve emission of infrared radiation
b.
reduce the heat loss by convection currents
c.
improve absorption of infrared radiation
14. These data were collected after the pressure on 600 mL of gas in a sealed container was
increased steadily. If everything remains the same, what will be the volume of the gas at a
pressure of 45 kilograms per square centimeter?
a. 150 mL
b. 75 mL
c. 56.25 mL
15. What is the purpose of putting separations in the roadway of a bridge as shown in the picture
below?
Pot 1.4 Test
a. To allow for the expansion of the concrete roadway on hot days
b. To make drivers slow down as they pass over the bump
c. To make it easier to repair damaged sections of the concrete roadway
16. Determine the amount of energy needed to raise the temperature of a 22.5 g silver necklace
with a specific heat of 0.23 J/g °C from 77 °F to 37 °C.
a. 62.1 J
b. 45.2 J
c. 207 J
17. How far would the boy in the diagram below have to push the crate to burn 156 calories from
a cup of chocolate ice cream?
Pot 1.4 Test
a. 567,291 meters
b. 80,980 meters
c. 32.6 meters
18. Determine the mass of water required to absorb 4.7 x 105 J of energy from car engine when
the temperature increases 57 °C. (CWater = 1.0 J/g °C)
a. 2628.1 g
b. 82.5 g
c. 121 g
19. Bernoulli’s principle explains why ______.
a. boats float
b. heated objects expand
c. planes fly
20. The specific heat of a substance is the amount of energy required to raise the temperature of
1 kilogram of that substance 1 Kelvin. A reasonable hypothesis based on the data in the graph is
that —
Pot 1.4 Test
a. water requires the least amount of energy to raise its temperature 1 K
b. metals require less energy than nonmetals to raise their temperatures 1 K
c. metals require more energy than nonmetals to raise their temperatures 1 K
21. Which process is taking place in all three pictures?
a. Conduction
b. Boiling
c. Radiation
Pot 1.4 Test
22. How will the heat from the pot in room A move to its handle?
a. convection
b. radiation
c. conduction
23. Thermal energy is transferred to the sunbather in room B by ______.
a. convection
b. radiation
c. conduction
24. Where does most of the heat provided by the fire in room C go?
a. up the chimney
b. into the room
c.
to the people