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Physics Fundamentals Quiz

Total questions: 75

Worksheet time: 38mins

Name
Class
Date
1.

What is a vector?

a)

A quantity with only magnitude

b)

A quantity with both magnitude and direction

c)

A measure of inertia

d)

A force that opposes motion

2.

Which law states that an object will remain at rest or move with a constant velocity if there is no net force on it?

a)

Newton's First Law

b)

Newton's Second Law

c)

Newton's Third Law

d)

Law of Universal Gravitation

3.

What is the formula for calculating torque?

a)

F = ma

b)

τ = rF sin(θ)

c)

v = u + at

d)

F = μN

4.

What is the difference between static friction and kinetic friction?

a)

Static friction acts on moving objects, kinetic friction on stationary objects

b)

Static friction acts on stationary objects, kinetic friction on moving objects

c)

Both act on moving objects

d)

Both act on stationary objects

5.

How is average velocity calculated?

a)

Total distance traveled divided by total time

b)

Total displacement divided by total time

c)

Change in velocity divided by time

d)

Force divided by mass

6.

What does Newton's Third Law state?

a)

An object will remain at rest unless acted upon by a force

b)

Acceleration is the result of a net force

c)

For every action, there is an equal and opposite reaction

d)

Force is equal to mass times acceleration

7.

What is the role of gravity in forces and acceleration?

a)

It is a force that opposes motion

b)

It is the attractive force between two objects due to their masses

c)

It is a twisting force that causes rotation

d)

It is the force experienced by a given mass due to Earth's attraction

8.

What is the centripetal force formula?

a)

Fc=mv2/rF_c = mv^2/r

b)

F_c = ma

c)

F_c = μN

d)

F_c = rF sin(θ)

9.

What is the unit of work in the SI system?

a)

Newton

b)

Joule

c)

Watt

d)

Pascal

10.

Which type of energy is associated with the movement of objects and depends on mass and speed?

a)

Potential Energy

b)

Chemical Potential Energy

c)

Kinetic Energy

d)

Electrical Potential Energy

11.

What is the formula for gravitational potential energy?

a)

U=12kx2U = \frac{1}{2} k x^2

b)

$ U = m g h $

c)

12mv2\frac{1}{2} m v^2

d)

$ W = F d $

12.

What does the Work-Energy Theorem state?

a)

Work done is equal to force times distance.

b)

Kinetic energy will change by the same amount as the net work done.

c)

Energy cannot be created or destroyed.

d)

The rate of doing work is power.

13.

What is the mechanical advantage of an inclined plane?

a)

Length of incline divided by height of incline

b)

Height of incline divided by length of incline

c)

Force output divided by force input

d)

Mass times acceleration

14.

What is the 0th Law of Thermodynamics primarily concerned with?

a)

Energy conservation

b)

Thermal equilibrium

c)

Entropy

d)

Heat transfer

15.

How is temperature related to the average kinetic energy of particles?

a)

Temperature is inversely proportional to kinetic energy

b)

Temperature is unrelated to kinetic energy

c)

Temperature is the average kinetic energy of particles

d)

Temperature is the sum of kinetic and potential energy

16.

What does the 1st Law of Thermodynamics state about energy in the universe?

a)

Energy can be created or destroyed

b)

Energy can only increase

c)

Energy can never decrease or increase

d)

Energy is always constant

17.

Which process occurs when energy is transferred between two objects at different temperatures until they reach the same temperature?

a)

Adiabatic process

b)

Isothermal process

c)

Heat transfer

d)

Work done

18.

What is the specific heat of water in calories per gram per degree Celsius?

a)

0.5 cal/g°C

b)

1 cal/g°C

c)

2 cal/g°C

d)

4 cal/g°C

19.

In an isolated system, what is exchanged with the surroundings?

a)

Only energy

b)

Only matter

c)

Both energy and matter

d)

Neither energy nor matter

20.

What does entropy measure in a system?

a)

The total energy

b)

The amount of work done

c)

How much energy has spread out

d)

The temperature change

21.

What is the definition of density in the context of fluids and solids?

a)

Mass per unit volume

b)

Force per unit area

c)

Volume per unit mass

d)

Weight per unit volume

22.

According to Pascal's Principle, how is pressure applied to an incompressible fluid distributed?

a)

Unevenly throughout the fluid

b)

Only at the point of application

c)

Diminished as it moves through the fluid

d)

Undiminished throughout the entire volume

23.

What happens to the velocity and static pressure of a fluid passing through a constricted area according to the Venturi Effect?

a)

Velocity decreases, static pressure increases

b)

Velocity increases, static pressure decreases

c)

Both velocity and static pressure increase

d)

Both velocity and static pressure decrease

24.

What is the relationship between radius and pressure gradient in Poiseuille’s Law?

a)

Directly proportional to the square of the radius

b)

Inversely proportional to the fourth power of the radius

c)

Directly proportional to the fourth power of the radius

d)

Inversely proportional to the square of the radius

25.

What is the principle behind the operation of hydraulic machines?

a)

Archimedes' Principle

b)

Bernoulli's Equation

c)

Pascal's Principle

d)

Venturi Effect

26.

What is the SI unit of charge?

a)

Coulomb

b)

Volt

c)

Tesla

d)

Newton

27.

What happens when opposite charges are near each other?

a)

They repel each other

b)

They attract each other

c)

They remain neutral

d)

They cancel each other out

28.

Which of the following materials allows the free and uniform passage of electrons when charged?

a)

Insulators

b)

Conductors

c)

Magnets

d)

Semiconductors

29.

What is the formula for the electric force between two charges according to Coulomb's Law?

a)

F = kq1q2r2\frac{k |q_1 q_2|}{r^2}

b)

F = qr2\frac{q}{r^2}

c)

F = kqr\frac{k q}{r}

d)

F = q1q2r\frac{q_1 q_2}{r}

30.

What is the product of charge and separation distance known as?

a)

Electric Field

b)

Dipole Moment

c)

Net Torque

d)

Lorentz Force

31.

What is the unit of magnetic field strength?

a)

Coulomb

b)

Volt

c)

Tesla

d)

Newton

32.

What is the formula for the Lorentz Force on a moving point charge?

a)

F_B = q v B \sin (\theta)

b)

F_B = I L B \sin (\theta)

c)

F_B = kqr\frac{k q}{r}

d)

F_B = qr2\frac{q}{r^2}

33.

What is the definition of current in a circuit?

a)

The movement of positive charges from low to high potential

b)

The movement of negatively-charged particles from low to high potential

c)

The movement of free ions under electric field

d)

The flow of current due to movement of electrons

34.

What does Kirchhoff’s Junction Rule state?

a)

The sum of voltage sources is always equal to the sum of voltage drops

b)

The sum of currents flowing into a junction is equal to the sum of currents flowing out

c)

The total resistance is equal to the sum of all individual resistances

d)

The total capacitance is equal to the sum of all individual capacitances

35.

How is the equivalent resistance calculated for resistors in series?

a)

By adding the reciprocals of each resistance

b)

By multiplying all resistances together

c)

By summing all individual resistances

d)

By taking the reciprocal of the sum of reciprocals

36.

What is the role of dielectric materials in capacitors?

a)

They decrease the capacitance by a factor equal to the material's dielectric constant

b)

They increase the capacitance by a factor equal to the material's dielectric constant

c)

They store electrical potential energy

d)

They discharge electrical potential energy

37.

What is the formula for calculating capacitance in parallel plate capacitors?

a)

C = Q/V

b)

C = V/d

c)

C = 1/R

d)

C = 1/L

38.

What is the function of an ammeter in a circuit?

a)

To measure voltage drop

b)

To measure resistance

c)

To measure current

d)

To store electrical energy

39.

What is the main characteristic of transverse waves?

a)

Oscillations of wave particles parallel to the direction of wave propagation

b)

Oscillations of wave particles perpendicular to the direction of wave propagation

c)

Oscillations of wave particles in a circular motion

d)

Oscillations of wave particles in a random pattern

40.

How is the speed of sound in a medium affected by its density?

a)

Speed increases as density decreases

b)

Speed decreases as density decreases

c)

Speed remains constant regardless of density

d)

Speed is not related to density

41.

What is the formula for calculating wave speed?

a)

v = f + λ

b)

v = f - λ

c)

v = f × λ

d)

v = f / λ

42.

What does the Doppler Effect describe?

a)

The change in wave speed due to temperature

b)

The change in frequency of a wave relative to an observer

c)

The change in amplitude of a wave over time

d)

The change in wavelength due to medium change

43.

What is the relationship between frequency and period of a wave?

a)

Frequency is the square of the period

b)

Frequency is the inverse of the period

c)

Frequency is double the period

d)

Frequency is half the period

44.

What occurs during constructive interference of waves?

a)

Waves cancel each other out completely

b)

Waves are out of phase and reduce amplitude

c)

Waves are in phase and increase amplitude

d)

Waves create a standing wave

45.

What is the purpose of using ultrasound in medical applications?

a)

To measure temperature changes in the body

b)

To compare the relative densities of tissues in the body

c)

To detect electrical activity in the heart

d)

To measure blood pressure

46.

What is the range of frequencies and wavelengths found in electromagnetic waves called?

a)

Visible Spectrum

b)

Electromagnetic Spectrum

c)

Diffraction

d)

Polarization

47.

Which type of mirror produces a real and inverted image?

a)

Convex

b)

Concave

c)

Plane

d)

Spherical

48.

What is the law of reflection?

a)

\( n_1 \sin(\theta_1) = n_2 \sin(\theta_2) \)

b)

\( \theta_i = \theta_r \)

c)

n=cvn = \frac{c}{v}

d)

θc=sin1(n2n1)\theta_c = \sin^{-1}(\frac{n_2}{n_1})

49.

What phenomenon occurs when light cannot be refracted out of a medium and is instead reflected back inside the medium?

a)

Diffraction

b)

Total Internal Reflection

c)

Dispersion

d)

Polarization

50.

What is the critical angle in optics?

a)

The angle at which light is completely absorbed

b)

The minimum incident angle at which total reflection occurs

c)

The angle at which light is dispersed

d)

The angle at which light is polarized

51.

What is the purpose of a polarizing filter?

a)

To increase the speed of light

b)

To allow only light oscillating along a specific axis to pass through

c)

To disperse light into its component colors

d)

To reflect light at a medium's boundary

52.

What is the energy of a photon of light given by?

a)

E=mc2E = mc^2

b)

E = hf

c)

E=mv2E = mv^2

d)

E = h/t

53.

What occurs during nuclear fusion?

a)

A large nucleus splits into smaller nuclei.

b)

A small nucleus splits into smaller nuclei.

c)

Small nuclei combine into larger nuclei.

d)

Electrons are emitted from the nucleus.

54.

Which type of decay involves the emission of a positron?

a)

Alpha decay

b)

Beta-negative decay

c)

Beta-positive decay

d)

Gamma decay

55.

What is the Bohr Model's main assertion about electron energy levels?

a)

They are continuous and random.

b)

They are stable and discrete.

c)

They are unstable and continuous.

d)

They are random and discrete.

56.

What is the mass defect in nuclear physics?

a)

The mass of a nucleus after a reaction.

b)

The difference between the mass of the unbonded nucleons and the bonded nucleons.

c)

The mass of an electron in a nuclear reaction.

d)

The energy released during nuclear fusion.

57.

What is the scientific notation for the number 481.2x107481.2 x 10^7 ?

a)

4.812x1094.812 x 10^9

b)

48.12 x 10^8

c)

0.4812 x 10^10

d)

4812 x 10^6

58.

Which mnemonic helps in moving the decimal within scientific notation?

a)

SOH CAH TOA

b)

LARS

c)

PEMDAS

d)

FOIL

59.

What is the value of log(A) when A = 1?

a)

0

b)

1

c)

A

d)

B

60.

What is the approximate value of √180 using estimation?

a)

12.5

b)

13.2

c)

14.1

d)

15.0

61.

What is the sine of 45 degrees?

a)

1

b)

0

c)

√2/2

d)

√3/2

62.

What is the tangent of 60 degrees?

a)

√3

b)

1

c)

0

d)

√2/2

63.

What is the value of e approximately?

a)

2.7

b)

3.14

c)

1.6

d)

2.2

64.

What is the cosine of 90 degrees?

a)

1

b)

0

c)

-1

d)

√3/2

65.

In the context of significant figures, what should be done if a number is rounded up?

a)

Round down in proportion

b)

Round up in proportion

c)

Leave unchanged

d)

Add a zero

66.

What is the initial step in the scientific method?

a)

Testing the hypothesis

b)

Formulating a hypothesis

c)

Analyzing data

d)

Drawing conclusions

67.

Which of the following is a tenet of medical ethics?

a)

Justice

b)

Accuracy

c)

Precision

d)

Control

68.

What is the role of a positive control in an experiment?

a)

To ensure no change occurs

b)

To ensure a change occurs when expected

c)

To manipulate the independent variable

d)

To measure statistical significance

69.

What does external validity refer to in research?

a)

The ability to generalize findings to the population

b)

The consistency of measurements

c)

The manipulation of variables

d)

The likelihood of findings being due to chance

70.

What is the placebo effect?

a)

A variable that influences the relationship between IV and DV

b)

Results influenced by subjects' awareness of being in a control group

c)

The likelihood of findings being due to chance

d)

The ability to generalize findings to the population

71.

What is the definition of the median in a data set?

a)

The average of all data points

b)

The data point that appears most often

c)

The value that lies in the middle of the data set

d)

The difference between the largest and smallest value

72.

Which type of distribution has a mean of 0 and a standard deviation of 1?

a)

Skewed Distribution

b)

Bimodal Distribution

c)

Normal Distribution

d)

Exponential Distribution

73.

What does a p-value determine in statistical testing?

a)

The average of the data set

b)

The significance of a finding

c)

The range of the data set

d)

The mode of the data set

74.

What is the difference between the third quartile and the first quartile called?

a)

Range

b)

Standard Deviation

c)

Interquartile Range

d)

Mean

75.

What is the probability of independent events based on?

a)

The outcomes of other events

b)

The mean of the data set

c)

The mode of the data set

d)

The median of the data set