The specific heat capacity of a liquid is
the amount of heat energy required to make 1 kilogram of the liquid boil
the amount of heat energy required to raise the temperature of 1 kilogram of the liquid by 1°F
The amount of heat energy required to raise the temperature of 1 kilogram of the liquid by 1°C
the amount of heat energy required to raise the temperature of 1000 cm3 of the liquid by 1°C
5 Boyle’s law states that
if you double the pressure on a gas its volume doubles
if you double the pressure on a gas its temperature halves
if you double the pressure on a gas its volume doubles provided its temperature is constant
if you double the pressure on a gas its volume halves provided its temperature is constant
6 In physics, pressure is defined as the _____ over a given area.
work
velocity
force
mass
7 What is the standard unit of measure for pressure?
Joule
Newton
Watt
pascal
8 What pressure will be exerted by a 10 N box that has equal sides of 1 meter?
1 pa
2 pa
5 pa
10 pa
9 A 40 N block exerts 20 Pa of pressure on a table. What is the area of the block that is touching the table?
0.5 meters squared
1 meters squared
2 meters squared
4 meters squared
10 The mass of 150 cm³ of stone is 400 g. Its density is
3.2 g cm-3
2.68 g cm-3
4 g cm-3
3.5 g cm-3
11 SI unit of density is
kgm-4
kgm-3
kgm-2
kgm
12 (Density/mass) is equal to
power
area
energy
volume
13 If the density of air is 1.3 kgm-3. The mass of air in a room measuring 8m×5m×4m is
210 kg
208 kg
215 kg
220 kg
14. The density of water is
100 kgm-3
10 kgm-3
1000 kgm-3
2000 kgm-3
15 Which one of the following is not considered to be one of the three states of matter?
Liquid
Solid
Mass
Gas
16 Which one of the following statements best describes the particles in a gas?
They are stationary and not able to vibrate.
They are moving very slow and are far apart.
They are very close together and are able to vibrate.
They are moving very fast and are far apart.
17 The difference between boiling and evaporation at normal atmospheric pressure is:
Boiling changes the liquid into a gas while evaporation makes the liquid disappear.
Boiling occurs at one temperature only, while evaporation may occur at different temperatures.
Evaporation occurs at one temperature only, while boiling may occur at different temperatures.
There is no difference between boiling and evaporation as in each case a liquid is changed into a gas.
18 A gas has a volume of 250 cm3 at a pressure of 100 kPa. What will the new volume of the gas be at a pressure of 200 kPa if the temperature remains constant?
500 cm3
2.5 cm3
150 cm3
125 cm3
19 If the volume of a fixed mass of gas is doubled while its temperature remains constant, what change will there be in its pressure?
The pressure will increase by four times.
The pressure will be halved.
The pressure will double.
The pressure remains the same.
20 Which one of the following statements best describes Boyle's Law? *
1 point
The temperature of a fixed mass of gas at a constant pressure is inversely proportional to its volume.
For a fixed mass of gas at a constant pressure, its temperature is proportional to its volume.
For a fixed volume of gas at a constant temperature, the pressure of the gas is inversely proportional to its mass.
For a fixed mass of gas at a constant temperature, the pressure of the gas is inversely proportional to its volume.
Answers
Answered by
2
6, force
7, pascal
8 10 pa
9 2 m/s^2
10 , 2.68
11, kg/m^3
12 , volume
13 208
14 1000kg/m^3
15 mass
16 , 4
17, 2 point .
18, 125 cm^3
19, pressure will be halved
20, 3 one , last line is correct
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