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WorksheetsProperty of materials
Total questions: 146
Worksheet time: 2hrs 43mins
What material can conduct heat and electricity, can be hammered into a shape, or drawn into a wire.
metal
plastic
fabric
glass
You push your finger into a ball of play-doh and it keeps its new shape. This is an example of
elasticity
plasticity
hardness
tensile strength
A material’s ability to resist denting or scratching is called:
toughness
hardness
tension
torsion
Name the following mechanical property
Shear
compressional
torsional
tensional
A bouncy ball is thrown to the floor. It deforms, then returns to its original shape. it is...
elasticity
plasticity
hardness
tensile strangth
Transparent and brittle (breaks easily)
Metal
Sponge
Glass
Plastic
Shiny and conducts electricity
Glass
Plastic
Rubber
Metal
Transparent and flexible
Rubber
Plastic
Fabric
Metal
Which physical property of matter is shown when a piece of material is turned into a thin sheet?
Stiffness
Flexibility
Elasticity
Malleability
Copper wires are usually used for electrical wire installations because it is ____
ductile
malleable
brittle
cheap
Materials that easily break when a force is applied like glass are said to be ____
malleable
brittle
ductile
elastic
Which of the materials below is a poor conductor of heat?
Iron
Wood
Gold
Copper
____ is the characteristic or trait that can be observed when a matter reacts to another substance.
Intensive Physical Property
Extensive Physical Property
Chemical Property
Physical Property
____ property is the characteristic or trait of matter that does not depend on the amount.
Intensive Physical Property
Extensive Physical Property
Chemical Property
Physical Property
____ is the characteristic or trait of matter that can be observed or perceived with our senses easily without changing its chemical composition.
Intensive Physical Property
Extensive Physical Property
Chemical Property
Physical Property
____ is the characteristic or trait of matter which is dependent on the amount or quantity.
Intensive Physical Property
Extensive Physical Property
Chemical Property
Physical Property
Which type of solid has mobile electrons in the crystal (sea of electrons)?
Ionic
Molecular
Metallic
Covalent Network
Which type of solid typically has the lowest melting point of the four types of crystals?
Ionic
Molecular
Metallic
Covalent Network
Which is an example of an ionic crystal?
Quartz
NaCl
Ammonia
Iron
Which is an example of a metallic crystal?
Quartz
NaCl
Ammonia
Iron
Solids have many different properties. ___________ solids are known for their ability to be flattened into a sheet, stretched into a wire, and to conduct energy well.
Molecular
Metallic
Covalent Network
Ionic
An engineer is designing an electrical system and is looking for a material to transmit energy. She has four solids available, each made with different materials. To conduct energy most efficiently and effectively, she should use material
whose electron are held with ionic bonds.
whose electron are held with covalent bonds.
whose electrons are held with metallic bonds.
that is an electrical insulator.
Which statement is true about the properties of solids?
Metallic solids have a high melting point.
Network solids are generally not soluble in water.
Molecular solids do not dissolve easily in water.
All ionic solids are similar in density.
Optical properties are identified as being important in determining the suitability of a particular material for a product or part of a product. describe the term Optical in relation to material properties.
How material reacts to physical forces.
The ability to transmit and refract light
How material reacts to corrosion and chemicals
The ability to transmit or resist the transfer of heat energy
How a material conducts or resists electrical currents
Electrical properties are identified as being important in determining the suitability of a particular material for a product or part of a product. describe the term Electrical in relation to material properties.
How material reacts to physical forces.
The ability to transmit and refract light
How material reacts to corrosion and chemicals
The ability to transmit or resist the transfer of heat energy
How a material conducts or resists electrical currents
Chemical properties are identified as being important in determining the suitability of a particular material for a product or part of a product. describe the term Chemical in relation to material properties.
How material reacts to physical forces.
The ability to transmit and refract light
How material reacts to corrosion and chemicals
The ability to transmit or resist the transfer of heat energy
The ability to absorb and transfer sound
Acoustic properties are identified as being important in determining the suitability of a particular material for a product or part of a product. describe the term Acoustic in relation to material properties.
How material reacts to physical forces.
The ability to transmit and refract light
Size, density, surface texture and aesthetic qualities should be considered
The ability to transmit or resist the transfer of heat energy
The ability to absorb and transfer sound
Why must you consider the environmental issues when choosing a material?
because the cost of the materials must fall within a budget
because sourcing materials locally will help reduce transport costs and supporting the local economy .
because some materials may be more suitable for mass manufacturing.
because the ability to recycle or reuse materials varies.
Why must you consider the volume of production when choosing a material?
because the cost of the materials must fall within a budget
because sourcing materials locally will help reduce transport costs and supporting the local economy .
because some materials may be more suitable for mass manufacturing.
because the ability to recycle or reuse materials varies.
Thermal properties are identified as being important in determining the suitability of a particular material for a product or part of a product. describe the term Thermal in relation to material properties.
How material reacts to physical forces.
The ability to transmit and refract light
The ability to transmit or resist the transfer of heat energy
Size, density, surface texture and aesthetic qualities should be considered
How a material conducts or resists electrical currents
The energy gap between between filled valence band and the conduction band is very small in this electron can easily jump from one band to another
Insulators.
Semiconductor
Metals
Other
The energy gap between filled valence band and the conduction band is large
Metal
Semiconductor
Insulator
Name the substance in which the gap between the valence band and conduction band is small . Therefore, some electrons may jump to conduction band and show some conductivity
Metals
Semiconductor
Insulators
Other
An element with which silicon can be doped to give a p-type semiconductor
Hydrogen
Boron
Carbon
Nitrogen
An element with which silicon can be doped to give a n-type semiconductor
Aluminum
Germanium
Gallium
Arsenic
Name an element with which germanium can be doped to produce an n-type semiconductor
Boron
Gallium
Indium
Nitrogen
Name the substances which are weakly repelled by a magnetic field & is shown by those substances in which all the electrons are paired and there are no unpaired electrons.
Dimagnetic
Paramagnetic
Ferrimagnetic
Ferromagnetic
The materials which show permanent magnetism even in the absence of magnetic field are called _____ material.
Dimagnetic
Paramagnetic
Ferrimagnetic
Ferromagnetic
Example of ANTIFERROMAGNETISM
MnO
NaCl
HCl
HF
Which of the answers below lists actual material properties?
Mechanical, radiant, and nuclear
Thermal, radiant, and electrical
Thermal, radiant, and nuclear
Mechanical, thermal, and electrical
Chemical or Physical:
A characteristic of matter that can only be observed when matter is changed into a new kind of matter.
Chemical
Physical
Define Specific Latent Heat of Fusion
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
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
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
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
What is heat capacity ?
The amount of thermal energy required to raise the temperature of a substance by 1K or 1°C
The amount of thermal energy required to raise the temperature of a 1kg mass of substance by 1K or 1°C
The amount of thermal energy required to change a substance from liquid state to gaseous state without a change in temperature
The amount of thermal energy required to change 1kg of the substance from liquid state to gaseous state, without a change in temperature
What is the formula to calculate heat energy required to raise the temperature of any substance?
∆E=mc∆t
∆E=mc
∆E= ½mv
m=∆EC
Latent heat is
the heat absorbed or released at a boiling process during a change of phase
the heat absorbed or released at a constant temperature during a change of phase
the heat absorbed or released at a constant temperature during a change of phase per 1 kg
the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celsius
The temperature shown by a mercury -in glass thermometer increases.Which of the following is constant.
the density of the mercury
the internal energy of the mercury
the mass of the mercury
the volume of the mercury
When a body is heated, then maximum rise will be in its
Length
surface area
volume
density
Which one of the following processes depends on gravity?
Conduction
Convection
Radiation
none of these
What property of metals led to the use of wooden handles on many metal cooking utensils?
Thermal Conductivity
Thermal expansion
Regelation
None of these
What is heat capacity ?
The amount of thermal energy required to raise the temperature of a substance by 1K or 1°C
The amount of thermal energy required to raise the temperature of a 1kg mass of substance by 1K or 1°C
The amount of thermal energy required to change a substance from liquid state to gaseous state without a change in temperature
The amount of thermal energy required to change 1kg of the substance from liquid state to gaseous state, without a change in temperature
The rate of evaporation is affected by several factors. Which statement describes one of the factors appropriately?
Higher air humidity increases the rate of evaporation.
A smaller exposed area increases the rate of evaporation.
A lower surrounding temperature increases the rate of evaporation.
A higher altitude (height above sea level) increases the rate of evaporation.
A high specific heat capacity means...
It heats up quickly with energy added
It requires more energy to change temperature
The increase in temperature when heat is supplied to a body can be explained by
an increase in the average kinetic energy of the particles in the body.
an increase in the average spacing of the particles in the body.
a decrease in the average speeds of the particles in the body.
a decrease in the internal energy of the particles in the body.
The SI unit of coefficient of linear expansion is ________
K
1/ K
° C
Temperature at which solid changes to liquid
Boiling Point
Freezing Point
Melting Point
Working principle of pressure cooker is ___________
Boiling Point increases with increase in Pressure
Boiling Point decreases with increase in Pressure
Melting Point increases with increase in Pressure
Which of the following process takes the longest time to occur?
Melting
Fusion
Boiling
What is internal energy of particles?
The total energy possessed by particles, including internal kinetic energy and internal potential energy.
The total energy possessed by particles, including internal kinetic energy and internal gravitational potential energy.
The total energy possessed by particles, including internal kinetic energy and internal elastic potential energy.
The total energy possessed by particles, including internal kinetic energy and internal electrical energy.
State three differences between boiling and evaporation
1) Temperature remains constant during boiling but decreases during evaporation
2) Evaporation does not occur at boiling point of liquid.
3) Evaporation only occurs on the surface while boiling occurs throughout the liquid
1) Evaporation occurs at any temperature while boiling occurs at fixed temperatures
2) Evaporation is a much slower process than boiling
3) Boiling causes air bubbles to appear and form on the surface but evaporation does not
1) Boiling causes air bubbles to appear and form on the surface but evaporation does not
2) Evaporation occurs at any temperature while boiling occurs at fixed temperatures
3) Evaporation is not a change of state, boiling is the change of state from liquid to gaseous state.
1) Evaporation does not require a gain in thermal energy for particles to evaporate.
2) Evaporation occurs at any temperature while boiling occurs at fixed temperatures
3) Boiling causes air bubbles to appear and form on the surface but evaporation does not
State what occurs during boiling/melting?
Internal Kinetic Energy increases, Internal Potential Energy decreases
Internal Kinetic Energy remains constant, Internal Potential Energy remains constant
Internal Kinetic Energy remains constant, Internal Potential Energy decreases
Internal Kinetic Energy remains constant, Internal Potential Energy increases
State what occurs during freezing/condensation?
Internal Kinetic Energy remains constant, Internal Potential Energy decreases
Internal Kinetic Energy remains decreases, Internal Potential Energy decreases
Internal Kinetic Energy remains constant, Internal Potential Energy remains constant
Internal Kinetic Energy remains constant, Internal Potential Energy increases
Ferromagnetic substances
are always magnetic
can become magnetized
are never magnetic
use the force
Select all that apply. These are ferromagnetic substances:
cobalt
iron
nickel
water
rare earth metals
The atoms of ferromagnetic substances are called
magnetic atoms
magnetic particles
dipoles
north south atoms
Select all that apply to magnetic induction.
Once a permanent magnet is brought near a ferromagnetic substance, the ferromagnetic substance becomes magnetic permanently.
Once a permanent magnet is brought near a ferromagnetic substance, the ferromagnetic substance becomes magnetic temporarily.
Contact between the permanent magnet and the ferromagnetic substance must be made.
Soft and hard ferromagnetic substances describe how they feel when you touch them.
Soft and hard ferromagnetic substances describe how long a ferromagnetic substance remains magnetic after being in close proximity to a permanent magnet.
Select all that apply to demagnetization.
occurs when an object is dropped
occurs when an object is heated up
occurs when an object is wet
substances that can be instantly demagnetized are called soft ferromagnetic materials
substances that can be instantly demagnetized are called hard ferromagnetic materials
True or false? A magnet can change its polarity if placed in a strong enough magnetic field.
True
False
If a bar magnet is broken into two pieces,
both pieces will also be magnets
neither piece will be a magnet
only the original north piece will be a magnet
only the original south piece will be a magnet
Magnetic saturation occurs when
the minimum amount of dipoles in a material are aligned in the same direction
a material absorbs as much water as it can hold
the maximum amount of dipoles in a material are aligned in different directions
the maximum amount of dipoles in a material are aligned in the same direction
Which is a strategy that we can use to prevent demagnetization?
store a ferromagnetic substance along with a bar magnet with like poles facing
store a ferromagnetic substance along with a bar magnet with opposite poles facing
store a ferromagnetic substance in a hot room
pray
The substances which are attracted by magnetic field are called as...
Dimagnetic Substances
Paramagnetic Substances
Ferromagnetic Substances
None of these
The substances which are repelled by magnetic field are called as...
Paramagnetic Substances
Dimagnetic Substances
Ferromagnetic Substances
None of these
Paramagnetic character arises due to ………..
the presence of unpaired electrons in the atomic orbitals
the presence of paired electrons in the atomic orbitals
Empty atomic orbitals
None of these
the presence of unpaired electrons in the atomic orbitals
the presence of paired electrons in the atomic orbitals
Empty atomic orbitals
None of these
If the north pole of one magnet is brought near the south pole of another magnet, the poles will
repel each other
attract each other
not interact with each other at all
Which atomic particle carries a negative charge
Proton
Nucleus
Neutron
Electron
Which of these materials are not magnetic?
An iron nail
A piece of glass
A chunk of cobalt
A piece of nickel
If a bar magnet is divided into two equal pieces
The north and south poles are separated
Two magnets result
The magnetic properties are destroyed
An electric field is created
What causes a magnetic field?
moving protons
moving neutrons
moving electrons
Spinning electrons themselves are small magnets
True
False
Most substances are NOT magnetic because
The substance is not a metal
Their electrons spin in the same direction
Their electrons occur in pairs
Since paired electrons spin in opposite directions, their magnetic fields _____.
become stronger
become weaker
cancel out
add together
Domains are regions in a magnet where the magnetic fields of atoms are grouped together and aligned.
True
False
Magnetism in an object happens when
There are no domains
There are domains
There are domains, and they point in the same direction
There are domains that point in random directions
Examine the picture. Which one indicates the presence of magnetism?
A
B
The source of all magnetism is
moving electrical charges
ferromagnetic material
tiny domains of aligned atoms
When a magnet becomes heated, what happens to its magnetic properties?
Nothing
It becomes even more magnetic
It loses its magnetic properties
None of the above
The polarity indicates that the atraction is stronger in:
The middle of the magneto
The poles
The north pole
The south pole
Units for magnetic flux density
(a) Wb / m2
(b) Wb / A.m
(c) A / m
(d) Tesla / m
Which type of magnet does not lose it's magnetic properties easily.
a permanent magnet
an electromagnet
a temporary magnet
a nail rubbed across the north pole of a magnet
The space in which the magnetic effects exists is called
the magnetic field
the magnetic equator
the magnetic material
Magnetic material
Paper clips and staples are attracted to magnets because paper clips and staples are
permanent magnets
temporary magnets
magnetic materials
magnetic domains
7. The SI unit of magnetising field is ____________
Am
AXm
A/m
All the above
The intensity of magnetisation is a scalar quantity
True
false
The SI unit of intensity of magnetisation is A/m
True
False
Which of the following statements about the properties of magnets is incorrect?
Has a magnetic field around it
Has two opposite poles - North and South
Will attract magnetic materials
Will attract non-magnetic materials
All strongly magnetic materials contain iron, nickel, or cobalt. What is the other terminology for strong magnetic materials?
Alcomax
Ferromagnetics
Mumetal
Magnadur
What is the most effective method of demagnetizing a bar magnet?
Placing the magnet in a solenoid carrying a large alternating and gradually decreasing the current.
Placing the magnet in a solenoid carrying a large direct current and gradually decreasing the current.
Placing the magnet in a solenoid that produces a magnetic field in the opposite direction to the magnet.
Placing the magnet next to an identical bar magnet with its poles in the opposite direction.
Choose all the non-magnetic materials listed below.
Brass
Copper
Nickel
Cobalt
Choose the correct statement (s) listed below.
Magnetic field exists around magnet and exerts forces on magnetic materials in it.
The magnetic field lines run from the S poles to the N poles of the magnet.
Magnetic fields can be investigated using a small compass.
The magnetic field is strongest where the field lines are closest together.
What is the name of position x in the picture?
Magnetic field
Magnetic north
Neutral point
Magnetic south
The Earth has a magnetic field. Where is the location of the Earth's magnetic S pole?
South pole
North pole
Equator line
Everywhere on Earth
In the right-hand grip rule, your thumb points in the ....
direction of field lines
electron movement
conventional current direction
electric field
The strength of magnetic field in a wire increases when ...
the current flow increases
the electric field increases
there is no barrier between the wire and magnet
it is close to the wire
In a current-carrying coil, the magnetic field is similar to that from ...
a bar magnet
a U-shaped magnet
a solenoid
Relatively easy to magnetise but their magnetism is only temporary.
Non-magnetic materials
Soft magnetic materials
Hard magnetic materials
Ferromagnetics
What is the most effective method to make a magnet?
Place a magnetic material near a magnet
Stroke a magnetic material using a magnet
Place a magnetic material in a long coil of wire and pass a large DC
Place a magnetic material in a long coil of wire and pass a large AC
Describe the direction the charge gets deflected at in the diagram above
up
down
left
right
Describe the direction the charge gets deflected at in the diagram above
out of the page
into the page
left
right
A positive charge moving toward the right of the page encounters an unknown magnetic field. The charge experiences a force up the page. What direction is the magnetic field?
into the page
out of the page
up
down
Can magnets interact without touching?
Yes
No
The area of magnetic force around a magnet is known as its _____________.
Magnetic Field
Magnetic Fan Lines
Magnetic Area
Magnetic Location
What will the magnets in the picture do?
Attract
Repel
Neither attract nor repel
Both attract and repel
What will the magnets in the picture do?
Attract each other
Repel each other
Both attract and repel
Neither attract nor repel
Permanent magnets are made out of which materials?
Cobalt, Nickel, and Iron
Copper, Chromium, and Cobalt
Gold, Silver, and Platinum
Copper, Nickel, and Iron
Magnetic fields are strongest _______.
at both poles
at the north pole
at the south pole
between the poles
Magnets are made of tiny sections of magnetic fields that are aligned to produce a larger magnetic field. These are called _____.
magnetic domains
magnetic fields
magnetic sections
electromagnets
A _____ is a device that has a magnetic needle that spins freely. It is used for navigation because its needle usually points north.
calculator
compass
GPS
map
The Earth's magnetic field is most useful for _____.
deflecting solar wind
keeping track of time
creating sunny weather
making it look cool in front of the other planets
Ancient people discovered magnetic rocks called lodestone. For what purpose did they use them?
starting fires
sculptures
compasses
magnetic weapons
Why does a compass needle point north?
because north is up
it lines up with Earth's magnetic field
because of magic
the compass is programmed to do so
Opposite charges _____ and like charges ____.
attract, repel
repel, attract
You have two magnets. One is in your hand and the other is sitting on a table. You move the SOUTH pole of your magnet near the SOUTH pole of the magnet on the table. What happens?
Nothing
They repel
They attract
A chemical reaction
Are the magnets in this picture attracting or repelling?
Attracting
Repelling
An atom is a positively charged nucleus that is orbited by negatively charged _____.
electrons
protons
neutrons
photons
When the atoms of a substance align their magnetic fields with each other, they are called ____.
ferromagnetic
anti-ferromagnetic
a compass
a lodestone
A ____ is a material that allows heat and electricity to pass through it. A ____ is a material that does NOT allow heat and electricity to pass through it.
Conductor, Insulator
Insulator, Conductor
What is the traditional color for North on a compass?
red
white
blue
black
