Free Printable Formula Story Practice Year B

1.

$T_{K\ }=T_{C\ }+273$ is the conversion between Celsius scale _________ and Kelvin scale _________.

(a)

2.

$Q=mL$

a)

The heat energy required to phase change a substance of given mass.

b)

The charge required to lengthen a given mass.

c)

The quotient required to phase change a substance of given momentum.

3.

$Q=mc\Delta T$

a)

The heat energy required to change the temperature of a substance of given mass.

b)

The charge required to change the period of a particle at the speed of light.

c)

The heat energy required to change the period of a particle at the speed of light.

4.

$\Delta U\ =\ Q+W$

a)

The change of internal energy is the heat energy added and the work done to the system.

b)

The change of internal energy is the heat energy added and the work done by the system.

c)

The change of initial energy is the heat energy added and the work done by the system.

5.

$\eta\ =\frac{energy\ output}{energy\ input}\times\frac{100}{1}\%$

a)

Efficiency is the ratio of energy output to energy input as a percentage

b)

Energy used is the ratio of energy output to energy input as a percentage

c)

Energy given is the ratio of energy output to energy input as a percentage

6.

$I=\frac{q}{t}$

a)

Current is how much charge passes per second.

b)

Current is how much heat energy transfers per second.

c)

Current is how much charge passes in a period.

7.

$V=\frac{W}{q}$

a)

The electric potential difference or voltage created is energy used per charge moved.

b)

The electric potential difference or voltage created is work done per heat energy.

c)

The internal energy is the work done per unit charge.

8.

$P\ =\frac{W}{t}$

a)

Power is the energy changed in a given time.

b)

Power is the voltage applied per time.

c)

Period is the work done against gravity per time.

9.

$R\ =\ \frac{V}{I}$

a)

The resistance of an element is the voltage required per the amount of current going through it.

b)

The resistance of an element is the voltage required for the internal energy of the system.

c)

The rate of charge is the voltage applied per the current through the element.

10.

$P\ =\ VI$

a)

The power through an electrical element depends on the voltage applied and current flowing through it.

b)

The power through an electrical element depends on voltage applied and the charge used.

c)

The power supplied by an element depends on the voltage and current on it.

11.

$P\ =\ I^2R$

a)

The power used by an element depends on the current going through and the resistance of the element.

b)

The power used by an element depends on the charge going through and the resistance of the element.

c)

The power created by a battery depends on the current through the battery and the resistance of the battery.

12.

$V_{t\ }=V_{1\ }+V_{2\ }+\ldots V_n$

a)

The sum of voltages used in a loop in a circuit is equal to the battery voltage.

b)

The sum of all voltages in a circuit is equal to the battery voltage.

c)

The sum of voltages in a parallel element is equal to the voltage leading into the split.

13.

$R_{t\ }=R_1+R_2+\ldots\ R_n$

a)

The equivalent resistance of elements in series is the sum of the resistances.

b)

The equivalent resistance of an entire circuit is the sum of the resistances.

c)

The equivalent resistance of elements in parallel is the sum of the resistances.

14.

$I_{t\ }=I_1+I_2+\ldots\ I_n$

a)

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

b)

The current in a circuit is equal to the sum of currents through each element.

c)

The charge in a circuit is equal to the sum of charges through each element.

15.

$\frac{1}{R_t}=\frac{1}{R_1}+\frac{1}{R_2}+\ldots\frac{1}{R_n}$

a)

The inverse equivalent resistance of elements in parallel is the sum of the inverse resistances of each element.

b)

The inverse equivalent resistance of elements in series is the sum of the inverse resistances of each element.

c)

The inverse equivalent resistance for a whole circuit is the sum of the inverse resistances of every element.

16.

$v=f\lambda$

a)

The velocity of a wave is found by the frequency and wavelength.

b)

The voltage of an AC circuit is found by the frequency and current.

c)

The velocity of a particle is found by the frequency and wavelength.

17.

$f=\frac{1}{T}$ is the relationship between frequency and (a) .

18.

$f=\frac{1}{T}$ is the relationship between (a) and period.

19.

$L=n\frac{\lambda}{2}$

a)

The length of a string or pipe with identical ends has harmonics equal to half wavelength.

b)

The length of pipe with one open end has harmonics equal to half wavelength.

c)

The length of any string or pipe has harmonics equal to half wavelength.

20.

$L=\left(2n-1\right)\frac{\lambda}{4}$

a)

The length of a pipe with one open end has odd harmonics equal to one quarter wavelength.

b)

The length of a string or pipe with identical ends has odd harmonics equal to one quarter wavelength.

c)

The length of any string or pipe has odd harmonics equal to one quarter wavelength.

d)

The length of any string or pipe has harmonics equal to one quarter wavelength.

21.

$\frac{\sin i}{\sin r}=\frac{v_1}{v_2}=\frac{\lambda_1}{\lambda_2}=\frac{n_2}{n_1}$

a)

In refraction of light, the ratio of angles, velocities, wavelengths, and inverse refractive index is the same.

b)

In refraction of sound, the ratio of angles, velocities, wavelengths, and inverse refractive index is the same.

c)

In reflection of light, the ratio of angles, velocities, wavelengths, and inverse reflective index is the same.

22.

$I\propto\frac{1}{r^2}$ The intensity of light is inversely proportional to the (a) from it.

23.

$I\propto\frac{1}{r^2}$ The (a) of light is inversely proportional to the radius/distance squared from it.

24.

$F=\frac{1}{4\pi\epsilon_0}\frac{Qq}{r^2}$

a)

The force between two charged objects is inversely proportional to the distance squared between them.

b)

The force needed when adding heat energy is inversely proportional to the rate of heating.

c)

The force between two charged objects is inversely proportional to the rate of movement.

25.

$E\ =\ \frac{F}{q}=\frac{1}{4\pi\epsilon_0}\frac{q}{r^2}$

a)

The electric field strength in a region is the force a test charge feels at that location, and depends on the distance from the source change.

b)

The electric field strength in a region is the force a source charge feels per size of the source charge, and depends on the distance from from the test charge.

c)

The electric field strength is the force felt between two test charges inversely proportional to the distance.

26.

$V=\frac{\Delta U}{q}$

a)

The electric potential difference created is the energy spent moving a charge.

b)

The electric potential difference is related to the internal energy of the system and the amount of charge it holds.

c)

The electric potential difference is depended on how much the internal energy changed compared to the heat energy.

27.

$B=\frac{\mu_0I}{2\pi r}$

a)

The magnetic field created at a distance around a current in a wire.

b)

The magnetic field created within a solenoid of a certain radius.

c)

The magnetic field created around a charged particle at a distance.

28.

$B=\mu_0nI$

a)

The magnetic field created inside a solenoid with a particular turn density from a current.

b)

The magnetic field created outside a solenoid with a particular turn density from a current.

c)

The magnetic field created inside a solenoid with a particular number of turns.

29.

$F=BIL\sin\theta$

a)

Force acts on a current carrying wire with a length in a magnetic field.

b)

Force acts on a solenoid with a length due to a magnetic field.

c)

Force acting on a length of current carrying wire causes a magnetic field.

30.

$F=qvB\sin\theta$

a)

A moving charged particle in a magnetic field will experience a force.

b)

A charge with a voltage in a magnetic field will experience a force.

c)

A moving charge will create a magnetic field when a force acts on it.

31.

$\phi=BA\cos\Theta$

a)

Magnetic flux is the strength of a magnetic field passing through perpendicular to an area.

b)

Magnetic flux is the strength of a magnetic field passing through parallel to an area.

c)

Magnetic flux is the magnetic field per an area.

32.

$emf\ =\ -\frac{n\Delta\left(BA_{\perp}\right)}{\Delta t}$

a)

The faster a magnetic field or the perpendicular area changes, the more electromotive force is applied to a loop.

b)

The slower a magnetic field or the perpendicular area changes, the more electromotive force is applied to a loop.

c)

The faster a magnetic field or the parallel area changes, the more electromotive force is applied to a loop.

d)

The slower a magnetic field or the parallel area changes, the more electromotive force is applied to a loop.

33.

$emf\ =-n\frac{\Delta\phi}{\Delta t}$

a)

The faster the magnetic flux changes in a loop, the more electromotive force created for the loop.

b)

The slower the magnetic flux changes in a loop, the more electromotive force created for the loop.

c)

The faster the magnetic flux changes in a loop, the more the electric field changes.

34.

$I_pV_p=I_sV_s$

a)

In a transformer, the power - voltage x current - into the primary coil must equal the power out of the secondary coil.

b)

In a transformer, if the voltage increases from primary to secondary, the current also increases.

c)

In a circuit, the power - voltage x current - into the primary element must equal the power out of the secondary element.

35.

$\frac{V_p}{V_s}=\frac{n_p}{n_s}$

a)

The ratio of voltages between the primary and secondary coils of a transformer will be equivalent to the ratio of the coils.

b)

The product of voltage and number of coils is equal for primary and secondary coils in a transformer.

c)

The ratio of voltages in the primary and secondary coils of a transformer will equal the ratio of the coil length density of the coils.

36.

$\lambda_{\max}=\frac{b}{T}$ the peak wavelength emitted by an object depends on the inverse (a) .

37.

$\lambda_{\max}=\frac{b}{T}$ the peak (a) emitted by an object depends on the inverse temperature.

38.

$E=hf$ the energy of a photon depends entirely on its (a) .

39.

$E=hf$ the (a) of a photon depends entirely on its frequency.

40.

$E_k=hf-W$

a)

The kinetic energy of an electron ejected by the photoelectric effect depends on the energy of incoming light that first has to act against the work function of the metal.

b)

The kinetic energy of an electron will depend on the energy of incoming light and cause it to do work.

c)

The kinetic energy of a photon ejected by the photoelectric effect depends on the energy of the incoming electron that first has to act against the work function of the metal.

41.

$\frac{1}{\lambda}=R\left(\frac{1}{n_f^2}-\frac{1}{n_i^2}\right)$

a)

The wavelength of light required to move an electron between quantum energy levels in a hydrogen atom.

b)

The wavelength of light required to move an electron between quantum energy levels in any element's atom.

c)

The wavelength of light required or emitted when the number of atoms in a compound is changed.

42.

$\lambda=\frac{h}{p}$ the momentum of a quantum entity depends on the de Broglie (a) .

43.

$\lambda=\frac{h}{p}$ the (a) of a quantum entity depends on the de Broglie wavelength.

44.

$n\lambda=2\pi r$

a)

The circumference of a quantum orbital must contain a harmonic of the de Broglie wavelength of the electron.

b)

When light orbits an atom, the de Broglie wavelength will be some multiple of the radius.

c)

The size of a quantum orbital depends on the wavelength of the proton.

45.

$mvr=\frac{nh}{2\pi}$ The ________ ________ of an electron is a fixed multiple of h.

(a)

Formula Story Practice Year B

Total questions: 45

Worksheet time: 29mins

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