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REVISION

Total questions: 81

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

2.
Which of the following would increase the pressure on a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
3.
What decreases as you go up in the atmosphere?
a)
Altitude
b)
Atmosphere
c)
Meteors
d)
Air Pressure
4.

How do you Calculate Pressure

a)

Force(N)/Area(m2)

b)

Force(kg)/Area(mi2)

c)

Area(m2)/Force(N)

5.

Why won't you sink in mud if you wear boots?

a)

Because the surface area is larger creating less pressure.

b)

Has air in it to keep you floating.

c)

Because the mud won't want you.

6.

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

a)

The design of this structure is stronger.

b)

Water pressure increases with depth.

c)

The cost of construction is lower.

d)

Water pressure acts uniformly in all directions.

7.

What is pressure?

a)

The amount of force exerted on a surface

b)

The surface area of an object

c)

The weight of an object

8.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
9.
A fluid can be...
a)
a gas
b)
a liquid
c)
a liquid or a gas
d)
a solid
10.
Fluids can also include__ and__. 
a)
solids and liquids
b)
solids and gases
c)
liquids and gases
d)
liquids
11.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
12.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
13.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
14.
What is the instrument that measures air pressure called?
a)
Graduated cylinder
b)
Barometer
c)
Force scale
d)
Anemometer
15.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
 A calf with big feet
d)
A calf with small feet
16.
Where would you find the largest pressure?
a)
At the bottom of the ocean
b)
At the top of Mt Everest
c)
Close to ground on the Scotch oval
d)
In a rockpool on the Great Barrier Reef
17.
Which of the statements is true?
a)
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
b)
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
c)
The bottom of the shoe exerts the same pressure as the bottom of the boot.
18.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
19.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
20.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
21.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
22.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
23.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
24.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
25.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
26.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
27.
What is the measuring unit for mass?
a)
centimeter 
b)
millimeter 
c)
grams 
d)
pounds
28.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
29.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
30.
A crayon has a mass of 10g and volume of 5 mL. What is the density?
a)
30 g/mL
b)
15 g/mL
c)
1 g/mL
d)
2 g/mL
31.

What is the formula for Mass?

a)

Mass/Volume

b)

Density x Volume

c)

Mass/Density

32.

What is the formula for Volume?

a)

Mass/Volume

b)

Density x Volume

c)

Mass/Density

33.
A material with a(n) ___________ specific heat can absorb a great deal of thermal energy without a great change in temperature.
a)
High
b)
Low
34.
As the thermal energy of matter ___________, its particles usually spread out. 
a)
increases
b)
decreases
35.
If two objects of the same mass require different amounts of heat to raise their temperature 10 kelvin, the objects have different ______________.
a)
specific heats
b)
thermal expansions
36.
To keep food warm or cool, coolers are made out of materials that are _________________.
a)
insulators
b)
conductors
37.
Water has a specific heat of 4,186 J/(kg.K).  To raise the temperature of a bathtub of water (220 kg) by 3 kelvin, it takes _____________ Joules of energy.
a)
2,762,760
b)
2,672,700
38.
The amount of energy required to raise 1 kg of material by 1 kelvin is called specific heat.
a)
True
b)
False
39.

Define Specific Latent Heat of Fusion

a)

is the amount of thermal energy required to change one kilograms of the substance from liquid state to gaseous state or vice versa, without a change in temperature

b)

is the amount of thermal energy required to change one kilograms of the substance from solid state to liquid state or vice versa, without a change in temperature

c)

is the amount of thermal energy required to change one kilograms of the substance from liquid state to gaseous state or vice versa by one Kelvin or one degree celcius

d)

is the amount of thermal energy required to change the substance of any of any mass from liquid state to solid state or vice versa, without a change in temperature

40.

What is heat capacity ?

a)

The amount of thermal energy required to raise the temperature of a substance by 1K or 1°C

b)

The amount of thermal energy required to raise the temperature of a 1kg mass of substance by 1K or 1°C

c)

The amount of thermal energy required to change a substance from liquid state to gaseous state without a change in temperature

d)

The amount of thermal energy required to change 1kg of the substance from liquid state to gaseous state, without a change in temperature

41.

The specific heat of platinum is 0.133 J/g°C. How much heat (∆E) is released when a 10 g piece of platinum cools from 100°C to 50°C?

a)

66.5 J

b)

665 J

c)

0.0266 J

d)

0.665 J

42.

20 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25° C to 20° C, how much heat energy (∆E) moves from the water to the surroundings?

a)

418 J

b)

209 J

c)

83 J

d)

4.18 J

43.

What is the formula to calculate heat energy required to raise the temperature of any substance?

a)

∆E=mc∆t

b)

∆E=mc

c)

∆E= ½mv

d)

m=∆EC

44.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.
45.

Latent heat is

a)

the heat absorbed or released at a boiling process during a change of phase

b)

the heat absorbed or released at a constant temperature during a change of phase

c)

the heat absorbed or released at a constant temperature during a change of phase per 1 kg

d)

the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celsius

46.

What is the formula to calculate specific latent heat of vaporisation?

a)

L = ∆E/m

b)

c = ∆E/(mΔƟ)

c)

∆E = mcΔƟ

d)

∆E = m/L

47.

The graph shows the cooling curve of a substance. At which stages the specific latent heat released?

a)

AB and CD

b)

BC and DE

c)

AB and EF

d)

BC and CD

48.
The change from a gas to a liquid is called 
a)
condensation
b)
evaporation
c)
sublimation
d)
deposition
49.

How much energy is required to freeze 150 g of water?


( Lvaporisation=2260 J/g and LFusion =334 J/g)

a)

50 100 cal

b)

339 000 J

c)

339 000 cal

d)

50 100 J

50.
What is Thermal expansion?
a)
The transfer of thermal energy between materials by the collisions of particles 
b)
Is a decrease in a materials volume when temperature decreases 
c)
An increase in a materials volume when temperature increases
d)
Chicken fried rice
51.

The temperature shown by a mercury -in glass thermometer increases.Which of the following is constant.

a)

the density of the mercury

b)

the internal energy of the mercury

c)

the mass of the mercury

d)

the volume of the mercury

52.

A block of ice is heated until it has melted. The water produced is heated until it boils. Which choice is correct?

a)

A

b)

B

c)

C

d)

D

53.

When a liquid evaporates, some molecules escape from it and its temperature changes. Where do the molecules escape from and what is the effect of evaporation on the liquid temperature?

a)

A

b)

B

c)

C

d)

D

54.

A heater supplies 80 J of energy to a block of metal. The temperature of the metal increases by 20 degC. What happens to the internal energy of the same block when its temperature falls by 10 degC?

a)

decrease by 40 J

b)

decrease by 160 J

c)

increase by 40 J

d)

increase by 160 J

55.

A hot drink is left in a room which has a temperature of 20 degC. What happens to the drink in 10 minutes?

a)

density becomes lower

b)

internal energy becomes lower

c)

particles move more quickly

d)

energy of particles become equal

56.

Ice at 0 degC is placed in warm water. The ice melts. As ice melts, which statement is correct?

a)

internal energy of ice decreases

b)

internal energy of water decreases

c)

temperature of ice increases

d)

temperature of water increases

57.

A sample of liquid at a temperature of 80 degC cools down and solidifies. The graph shows the temperature against time as the sample cools. How long does the process of solidification take?

a)

2 min

b)

3 min

c)

4 min

d)

5 min

58.

Some statements about boiling and evaporation are below. Which is incorrect?

a)

Boiling occurs at the liquid surface.

b)

Boiling forms bubbles as liquid turns to gas.

c)

Evaporation occurs at any temperature.

d)

Rate of evaporation is affected by exposed surface area of the liquid.

59.

The bar graph shows the temperature at which some substances change state.

Which substance freezes at 800 degC?

a)

carbon dioxide

b)

ethanol

c)

sodium chloride

d)

water

60.

When rubbed with ethanol the hand feels cold because ...

a)

the temperature of the ethanol is lower than the body temperature

b)

ethanol on the skin prevents the loss of heat from the body

c)

thermal energy is transferred from ethanol to the body

d)

heat is removed from the body as ethanol evaporates

61.

Blocks of gold are made by pouring hot, melted gold into moulds. The gold cools to its melting point and begins to solidify.  As it solidifies, its temperature ............................

a)

stays constant and energy is lost from the gold

b)

stays constant and no energy is lost from the gold

c)

decreases and energy is lost from the gold

d)

decreases and no energy is lost from the gold.

62.

The flow of heat due to a temperature difference is called...

a)

Heat Transfer

b)

Conduction

c)

Convection

d)

Radiation

63.

Heat transfer is also called...

a)

Thermal Energy

b)

Conduction

c)

Convection

d)

Radiation

64.

When heat energy moves in a solid it is called....

a)

Conduction

b)

Convection

c)

Radiation

65.

When the motion of particles in the hotter part transfer their energy through vibrations to nearby ones it is what type of heat transfer...

a)

Conduction

b)

Convection

c)

Radiation

66.

Touching a hot stove is an example of...

a)

Conduction

b)

Convection

c)

Radiation

67.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

68.

Walking without shoes on a hot day is an example of...

a)

Conduction

b)

Convection

c)

Radiation

69.

When heat energy moves in a liquids or gases it is called...

a)

Conduction

b)

Convection

c)

Radiation

70.

The rising and sinking in fluids is called a

a)

Conduction

b)

Convection Current

c)

Radiation

71.

Boiling water is an example of...

a)

Conduction

b)

Convection

c)

Radiation

72.

A radiator heating a cold room is an example of...

a)

Conduction

b)

Convection

c)

Radiation

73.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

74.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

75.

When heat energy can travel in space by infrared or thermal radiation it is called...

a)

Conduction

b)

Convection

c)

Radiation

76.

A type of heat transfer that does not rely on physical contact of substances is called...

a)

Conduction

b)

Convection

c)

Radiation

77.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

78.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

79.

The higher the temperature the higher the...

a)

Kinetic Energy

b)

Potential Energy

c)

Sound Energy

d)

Chemical Energy

80.

The more heat the more the particles...

a)

Stay in a fixed psoition

b)

Vibrate

81.

This picture is an example of

a)

Conduction

b)

Radiation

c)

Convection

d)

All of the above

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