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WorksheetsTTO2 IGCSE unit 4&6
Total questions: 48
Worksheet time: 24mins
Name
Class
Date
1.
Fill in the gap: Thermal expansion can be defined as the … of a substance due to increasing its temperature.
a)
A. reduction of volume
b)
A. enlargement of volume
c)
contraction of volume
2.
What state of matter expands most when the temperature increases?
a)
solid
b)
liquid
c)
gas
3.
What is the application of the thermal expansion of a fluid?
a)
bimetallic strips
b)
expansion gaps
c)
steel tyres
d)
thermometers
4.
The thermometric property of the thermometer is the physical property that varies with
a)
pressure
b)
substance
c)
temperature
d)
volume
5.
The lowest to the higher temperature is called the
a)
accuracy
b)
linearity
c)
sensitivity
d)
range
6.
With what substance should you fill your thermometer when you want to measure the temperature on a cold winter’s day?
a)
Alcohol
b)
Mercury
c)
Water
7.
Alcohol expands about five times more than mercury for the same change of temperature. Which has the largest sensitivity?
a)
Alcohol
b)
Mercury
c)
Both the same
d)
One cannot tell
8.
The linearity of a thermometer is poorer when the corresponding reading of a thermometer differs ............................from the corresponding readings of a standard thermometer.
a)
more
b)
less
9.
On which kind of thermometer is the reading more accurate?
a)
analog
b)
digital
10.
Using information page 86 what is the condensation point of alcohol?
a)
-114°C
b)
-38°C
c)
78°C
d)
357°C
11.
In figure 6.1.1 the thermal expansion of air and water are compared. The result show that air expands much more than water for the same temperature rise. How can one see that?
a)
A. The level of water moves more up for water than for air.
b)
A. The level of water moves more up for air than for water.
c)
A. The molecules of water move more vigorously than air.
d)
The molecules of air move more vigorously than water.
12.
In figure 6.1.2 a radiator thermostat is shown. This piece of equipment controls a heating system using thermal expansion of which substance?
a)
air
b)
metal
c)
oil
d)
water
13.
What is the SI unit of temperature?
a)
J
b)
s
c)
°C
d)
Pa
14.
A liquid-in-gas thermometer depends on what property of a liquid?
a)
Liquid expand on heating
b)
Liquids are incompressible
c)
Pressure increases with temperature
d)
Liquids can flow
15.
Which of the following statements about heating a material is incorrect?
a)
The greater the rate of supply of heat energy, the greater the rate of increase of temperature
b)
At a melting point, the temperature of the material stays constant
c)
At a melting point, the kenetic energy of the particles increases
16.
Which of the following statements about evaporation and boiling is incorrect ?
a)
Boiling occurs at a fixed temperature
b)
Evaporation occurs over a range of temperatures
c)
Evaporation decreases the temperature of a liquid
d)
Boiling increases the temperature of a liquid
17.
Friction transforms kinetic energy into what type of energy?
a)
electrical
b)
gravitational
c)
thermal
d)
chemical
18.
What form of energy has a moving vehicle
a)
Elastic strain
b)
Gravitational potential
c)
Chemical
d)
Kinetic
19.
Which type of energy is stored in batteries
a)
Thermal
b)
Chemical
c)
Kinetic
d)
Electrical
20.
Which type of energy gains an Airplane as its moved away from the Earth
a)
Kinetic
b)
Gravitational
c)
Nuclear
d)
Electric
21.
How does heat transfer
a)
From a cold object to a hot object
b)
From a hot object to a cold object
22.
Describe the energy changes in a pencil dropping from a table
a)
Potential energy to internal energy
b)
A. Kinetic energy to potential energy
c)
A. Potential energy to kinetic energy
d)
Internal energy to potential energy
23.
Which is not a form of energy
a)
Nuclear
b)
Elastic strain
c)
Velocity
d)
gravitational
24.
Which of these statements is true when a pencil drops from a table to the floor?
a)
The total amount of energy is less as it was before
b)
Kinetic energy transforms into potential energy
c)
The total energy drops to zero
d)
The total amount of energy stays the same
25.
Which of these is a renewable source of energy
a)
Crude oil
b)
Nuclear fission
c)
Natural gas
d)
Hydro-electricity
26.
Which of these are all fossil fuels
a)
Petrol, coal, methane gas
b)
Wood, straw, ethanol
c)
Oil, natural gas, petrol
d)
Ethanol, natural gas, straw
27.
Which of these are all bio fuels
a)
Petrol, coal, methane gas
b)
Wood, straw, ethanol
c)
Oil, natural gas, petrol
d)
Ethanol, natural gas, straw
28.
What is useful energy transformation in a motor
a)
Electrical to heat
b)
Electrical to kinetic
c)
A. Electrical to sound
d)
Kinetic to electrical
29.
Fill in : the ……1……..of an electricity generator is the rate at which it supplies……2…energy
a)
1 power 2 electrical
b)
1 electrical 2 power
c)
1 electricity 2 power
d)
1 power 2 electricity
30.
Which of these power station don’t burn fuel to produce steam
a)
Coal powered station
b)
Biofuel powered station
c)
Gas-fired power station
31.
What is the used power source in a nuclear power station?
a)
Uranium
b)
Neutrons
c)
Oil
d)
Nucleus
32.
What describes nuclear fission the most correctly?
a)
A uranium atom split in two by itself
b)
A uranium atom collides with an electron and splits
c)
A uranium atom collides with another uranium atom an splits
d)
A uranium atom collides with a neutron and splits
33.
Which power station releases the most energy per kilogram fuel
a)
Nuclear
b)
Biofuel
c)
Fossil fuel
34.
What type of particles are in nucleus
a)
Electrons, protons
b)
Neutrons, electrons
c)
Electrons, neutrons, protons
d)
Neutrons, protons
35.
What is an advantage of wind turbine farms?
a)
They produce pollution (green house gases).
b)
It costs a lot of energy to make a wind turbine.
c)
When the wind blows, they produce lots of electricity
d)
They are unreliable
36.
What energy change occurs in a wind turbine?
a)
Kinetic to electricity
b)
Potential to electricity
c)
Electricity to kinetic
d)
Wind to electricity
37.
In a wave generator the wave provides which kind of energy?
a)
Water energy
b)
Moving energy
c)
Potential energy
d)
Electrical energy
38.
Hydroelectricity starts with using of which kind of energy?
a)
Water energy
b)
Height energy
c)
Potential energy
d)
Kinetic energy
39.
What renewable energy sources can provide the most power?
a)
Wind energy
b)
Wave energy
c)
Hydroelectricity
d)
Tidal energy
40.
What word means “the tidal mouth of a large river, where the tide meets the stream”?
a)
tidal
b)
estuary
c)
high tide
d)
barrage
41.
What word means “an artificial barrier”?
a)
tidal
b)
estuary
c)
high tide
d)
barrage
42.
Tidal energy starts with using of which kind of energy?
a)
Water energy
b)
Tidal energy
c)
Potential energy
d)
Kinetic energy
43.
Why is tidal energy more reliable than wind energy?
a)
Tides occur daily.
b)
Tides can’t break.
c)
Tides don’t blow
44.
Sun beams are not used for their energy in:
a)
Solar cells
b)
Solar heating panels
c)
Solar dish washers
d)
Solar cookers
45.
What is the difference between solar cells and solar heating panels?
a)
Solar cells heat water directly. Solar heating panels don’t.
b)
Solar heating panels heat water directly. Solar cells don’t.
46.
Why do solar heating panels have black covers?
a)
Because black absorbs sunlight better.
b)
Because of a better distant view.
c)
Because of the insulating function.
47.
Which kind of energy does geothermal energy make use of?
a)
Thermal energy
b)
Heat energy
c)
Nuclear energy
d)
Hydrolic energy
48.
What is the useful energy transformation in a motor?
a)
electrical to heat
b)
electrical to kinetic
c)
electrical to sound
d)
kinetic to electrical
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