# (2.) Physics Hl/Sl. Thermal Physics / Oscillations And Waves

36 Questions | Total Attempts: 117  Settings  Quiz on physics sections 3 and 4, focusing on definitions. Don't screw up the definition questions! You get free points if you just learn them.

• 1.
"The total energy that the molecules of a sustance possess is the [...] of that substance"
• 2.
The mole is the amount of substance that contains as many elementary particles as there are in ...
• A.

12 g of Carbon-12

• B.

1.2 g of Carbon-12

• C.

0.12 kg of Carbon-12

• D.

The world

• 3.
The mass of one mole of a substance is the [...] of that substance
• 4.
The change of phase from solid to liquid is known as
• A.

Fission

• B.

Fusion

• C.

Boiling

• 5.
Pressure is the force per unit area applied in the direction [...] to the surface of an object
• 6.
“Macroscopically, at a constant volume, the pressure of a gas is proportional to its temperature in Kelvin”
• A.

Pressure law

• B.

Charles's law

• C.

Boyle's law

• 7.
“Macroscopically, at a constant temperature, the pressure of a gas is inversely proportional to its volume”
• A.

Pressure law

• B.

Charles's law

• C.

Boyle's law

• 8.
The change of phase from liquid to gas is known as
• A.

Fusion

• B.

Fission

• C.

Evaporation

• D.

Vaporization

• 9.
The energy needed to melt/freeze one kilogram of a substance is the specific [...] of that substance
• 10.
"The amount of energy needed to raise or lower the temperature of a substance of 1 kg by 1 K" What is being defined?
• A.

Thermal capacity

• B.

Specific heat capacity

• C.

Latent heat

• 11.
Hence, write down what is defined in the following sentence: "The measure of the heat required to change the temperature of a substance"
• 12.
The number of particles in a mole is a constant named ...
• 13.
“The vaporization occurring at the surface of a liquid" What is being defined?
• A.

Evaporation

• B.

Boiling

• C.

Fusion

• 14.
“When the vapour pressure of the liquid is equal to the environmental pressure exerted by the liquid” works well as a definition of "boiling"
• A.

True

• B.

False

• 15.
Define "oscillations"
• A.

Transverse waves

• B.

Vibrations within a medium

• C.

Vibrations moving perpendicular to the direction of the medium

• 16.
Considering simple harmonic motion, the instantaneous distance of a moving object from its mean position is the [...] of that object"
• 17.
"Time taken for a complete oscillation" What is being defined?
• A.

Frequency

• B.

Period

• C.

Phase difference

• D.

Wavelength

• 18.
"The number of oscillations per unit time is a proper definition of [...]"
• 19.
When oscillations are caused by an external force, the oscillations are said to be ...
• A.

Damped

• B.

Forced

• C.

Progressive

• D.

Standing

• 20.
"Wavelength" can be defined as "the length of a wave"
• A.

True

• B.

False

• 21.
The power per unit area recieved by the observer is the [...] of a wave
• 22.
"The elongation (disturbance) at a point = the sum of all elongations at the point" What is this?
• A.

Hooke's law

• B.

Principle of superposition

• C.

Snell's law

• D.

Standing wave

• 23.
"A single disturbance which transfers energy through a medium" What is specifically being defined?
• A.

Oscillation

• B.

Transverse wave

• C.

Longitudinal wave

• D.

Wave pulse

• 24.
The "opposite" of the wave pulse can be defined as follows: “A succession of disturbances (oscillations) that transfer energy through a medium” What type of wave is this?
• 25.
“Wave where the motion of the particles is parallel to the wave motion” What is being defined above is a transverse wave.
• A.

True

• B.

False

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