Define centre of gravity

The point at which the entire weight of an object can be considered to act

The point at which an object is in motion

The point at which an object is heaviest

The point at which an object is weightless

total displacement / total time

A push or pull acting upon a body

A chemical reaction acting upon a body

A ray of light acting upon a body

A sound wave acting upon a body

Force is equal to mass times acceleration

Force is equal to mass minus acceleration

Force is equal to mass plus acceleration

Force is equal to mass divided by acceleration

the product of an object's mass times its velocity

the force of gravity on an object

the distance an object travels in a given time

the resistance an object encounters when moving through a fluid

Define the principle of conservation of momentum

Momentum of a system remains constant if no external forces act upon it

Momentum increases with external forces but not internal forces

Momentum decreases with external forces and not with internal forces

Momentum is not affected by external forces or internal forces within a system

Define an elastic collision

A collision in which both kinetic energy is conserved

A collision in which kinetic energy is lost and chemical energy is conserved

A collision in which neither kinetic energy nor chemical energy is conserved

A collision in which kinetic energy is not conserved

Define an inelastic collision

An inelastic collision is a collision in which kinetic energy is not conserved

An inelastic collision is a collision in which kinetic energy is converted into potential energy

An inelastic collision is a collision in which kinetic energy is conserved

An inelastic collision is a collision in which kinetic energy is doubled after the collision

the measure of the energy transferred when a force is applied to an object over a distance in the direction of the force

the measure of the energy transferred when a force is applied to an object but it remains stationary

the measure of the energy transferred when a force is applied to an object over a distance in the opposite direction of the force

the measure of the energy transferred when a force is not applied to an object

Define potential energy

Energy due to position or state

Define kinetic energy

The energy an object possesses due to its motion

The energy absorbed by an object during its motion

The energy released from an object at rest

The energy stored in an object due to its position

Define elastic potential energy

The energy stored in an object when it is stretched or compressed

The energy produced by an object in motion

The energy released when an object is stretched

The energy stored in an object when it is at rest

The ability of an object is the amount of work it can do

The weight of an object as it moves across a plane

The heat force given off as an object moves

The ability of an object to apply a force to another object

the measure of the amount of work done per second

the measure of the amount of distance covered per second

the measure of the amount of energy created in an object per second

the measure of the amount of rest per second

the extension distance is proportional to the force applied to the spring

the extension distance is not indirectly proportional to the force applied to the spring

the extension distance is not proportional to the force applied to the spring

the extension distance is indirectly proportional to the force applied to the spring

A measure of the internal forces within a material

A measure of a specific type of energy

A measure of the speed of an object

A measure of the temperature of a substance

The extension per unit length due to an applied stress

The heat energy released by a stretched material

The frictional energy released by an object in motion

The force applied to an already stretched material

a property that describes how much a material will deform under a force

the ability of a material to conduct electricity while under stress

the minimum heat energy needed to be released for a material to melt

a measure of the material's colour change under stress

a solid material with in a regular ray of atoms in a long range form

a form of plasma material with disordered particles

a condensed gas with random atomic arrangement

a type of solid found within a liquid solution with no definite shape

Define a crystalline solid

Solid consisting of a crystal, or of many crystals, arranged randomly

A solid material whose atoms are arranged in a highly ordered, repeating pattern

A condensed gas material with no definite volume or structure

A material with atoms arranged in a random, irregular pattern

Define an amorphous solid

A solid with atoms that have a random molecule arrangement

A solid with a perfectly symmetrical molecular arrangement

A solid that can be easily molded into different shapes

A solid with a highly organised and repeating atomic structure

Define a polymeric solid

A solid material with no specific shape

A solid material with no definite volume

A solid material made up of chain-like molecules

A solid material composed of only one type of atom

A ductile material is...

a material that can be stretched into a wire without breaking

a material that shatters easily

a material that cannot be molded

a material that is highly conductive

Define elastic strain

Strain that disappears when the stress is removed from the material

Change in temperature of a material under stress

Permanent change in shape or size of a material under stress

Change in color of a material under stress

Define plastic strain

Strain that decreases only slightly when the stress is removed

Complete restoration of a material under applied stress

Temporary deformation of a material under applied stress

No change in the shape of a material under applied stress

The point at which deformation ceases to be elastic and does not revert back to its original shape

The maximum force a material can withstand before breaking

The point at which a material will change colour after being deformed

The point at which a material will return to its original shape after the deforming force is removed

Dislocations in crystals are...

faults in crystals that reduce the stress needed for atoms to slide over each other

only found in solids that are evaporated into liquids

caused by excessive heat applied to the crystal at any given time

perfectly arranged atoms in a crystal structure that are smaller than average

Define grain boundaries

The boundaries between crystals (grains) in a polycrystalline material

Lines (grain boundaries) separating different types of wood

Boundaries between different layers (grains) of sedimentary rock

The edge (grain boundary) of a piece of fabric

Ductile fracture is...

a type of fracture that occurs in ductile material by stress

a type of fracture that results from overloading the material with strain

a type of fracture that occurs in brittle materials by stress

a type of fracture caused by extreme temperature changes

Define a brittle material

A material that breaks or shatters easily when subjected to stress or force

A material that is flexible and malleable even when under a lot of stress and strain

A material that is resistant to stress and/or force

A material that is transparent and lightweight

Define brittle fracture

Sudden and complete failure of a brittle material under stress

No failure of a material under stress no matter how large

Gradual and partial failure of a material under stress

Failure of a material to break and fracture due to excessive flexibility

Elastic hysteresis is...

When a material is put under stress and then relaxed, the stress-strain graphs do not coincide, but form a loop

When a material is relaxed and then put under stress, the stress-strain graphs do not coincide, but form a negative correlation

When a material is put under stress and then relaxed, the stress-strain graphs do coincide

When a material is put under stress and never relaxed, the stress-strain graphs do coincide

a body that absorbs all the electromagnetic radiation that falls upon it

a body that absorbs none of the electromagnetic radiation that falls upon it

a body that emits all electromagnetic radiation that falls upon it

a body that reflects all the electromagnetic radiation that falls upon it

Wein's displacement law is...

The wavelength of peak emission from a black body is inversely proportional to the temperature

The wavelength of peak emission from a black body is directly proportional to the temperature

The wavelength of peak emission from a black body is inversely proportional to the absorption

The wavelength of peak emission from a black body is directly proportional to the absorption

Physics Definitions

11th Grade

•

51 Qs

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Physics Definitions

Quiz

•

Physics

•

11th Grade

•

Practice Problem

•

Medium

Siona Mumford

Used 8+ times

FREE Resource

51 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define 'Quantity'

In S.I a quantity is represented by a number and a unit

In S.I a quantity is represented by a direction and a unit

In S.I a quantity is represented by a number and a direction

In S.I a quantity is represented by a unit and a volume

FILL IN THE BLANK QUESTION

1 min • 1 pt

A scalar is a quantity with only _________

MULTIPLE SELECT QUESTION

45 sec • 1 pt

A vector is a quantity with both...

Magnitude

Units

Volume

Direction

FILL IN THE BLANK QUESTION

1 min • 1 pt

Density = _____ / volume

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define the moments about a force

The speed of a force

The turning effect (torque) of a force

The direction and magnitude of a force

Turning effect produced by a force acting at a distance from a point or axis

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The area under a velocity time graph is equal to the...

time

displacement

acceleration

speed

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The principle of moments

The principle of moments states that the sum of the clockwise moments about any point is less than the sum of the anticlockwise moments about the same point.

The principle of moments states that the sum of the clockwise moments about any point is greater than the sum of the anticlockwise moments about the same point.

The sum of the clockwise moments about any point is equal to the sum of the anticlockwise moments about the same point.

The principle of moments states that the sum of the clockwise moments about any point is not related to the sum of the anticlockwise moments about the same point.

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Physics Definitions

51 questions

Define 'Quantity'

A scalar is a quantity with only _________

A vector is a quantity with both...

Density = _____ / volume

Define the moments about a force

The area under a velocity time graph is equal to the...

The principle of moments

Define centre of gravity

Diplacement is the ______ distance from point A to point B

Mean speed =

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