Charge on a group of Electrons

Calculating the total charge on a group of electrons using the elementary charge (-1.6 x 10-19).

Q = -1.6 x 10-19 x (e-)

Charge on a group of Protons

Calculating the total charge on a group of protons using the elementary charge (+1.6 x 10-19).

Q = 1.6 x 10-19 x (p+)

Converting Speed Units

Questions based on converting speeds in km h-1 into speeds in m s-1 for various vehicles and objects.

v (ms-1) = v (km h-1)/3.6

Converting Speed Units

Questions based on converting speeds in m s-1 into speeds in km h-1 for various vehicles and objects.

v (km h-1) = v (m s-1) x 3.6

Converting Temperature Units

Questions based on converting temperatures in degrees Celsius into temperatures in Kelvin.

T(K) = T(oC) + 273

Converting Temperature Units

Questions based on converting temperatures in Kelvin into temperatures in degrees Celsius.

T (oC) = T(K) - 273

Current from Charge and Time

Calculating the current in a wire for a given charge passing in a given amount of time.

I=Q/t

Electrical Energy

Calculating amount of energy supplied to water from a known current, time, and potential difference.

E=VIt

Electrical Potential Energy

Calculating the amount of electrical energy for a battery from a given voltage and charge.

E = V x Q

Electrons and Charge

Calculating the number of extra electrons on an object from the given charge of the object.

ne = Q/-1.6x10-19

Electrons Passing a Point

Calculating the number of electrons passing a point in a circuit in one second from a given current.

Q=It, ne=Q/qe

Half-Life: Final Activity

Calculating the activity of a sample from the starting activity and half-life after a period of time has passed.

n=T/t1/2, A=A0(1/2)n

Half-Life: Nuclei Remaining

Calculating the number of remaining nuclei for an element over a given time period and half-life.

n=T/t1/2, N=N0(1/2)n

Hubble's Law: Velocity

Calculating the recessional velocity of a galaxy using a given distance from Earth and the Hubble constant.

v=H0d

Kinetic Energy

Questions based on calculating the kinetic energy of different objects based on their mass and velocity.

Ek = ½mv2

Latent Heat of Fusion

Calculating the amount of energy needed to be added or removed to go from a solid to liquid or vice versa.

Q=mLfusion

Latent Heat of Vaporisation

Calculating the amount of energy needed to be added or removed to go from a liquid to gas or vice versa.

Q=mLvaporisation

Momentum of an Object

Calculating the momentum of an object from a given mass (kg) and a given velocity (ms-1) with compass points orientation.

p=mv

Newton's Second Law

Using Newton's Second Law to calculate the net force acting on an object from a given mass and acceleration.

Fnet = ma

Power (Voltage and Current)

Calculating the power (in W) of an object from a given potential difference (V) and current (A).

P=VI

Specific Heat Capacity

Questions based on calculating the amount of energy required to increase the temperature of a mass of water.

Q = mcΔT

Voltage, Current, Resistance

Questions for calculating the potential difference from a given current and resistance.

V = IR