What is the unit of force?
newton (N)
Force is a vector quantity that causes an object to accelerate.
What is the unit of mass?
kilogram (kg)
Mass is a measure of the amount of matter in an object.
What is the unit of acceleration?
metres per second squared (m/s²)
Acceleration is the rate of change of velocity.
What is the unit of velocity / speed?
metres per second (m/s)
Velocity is a vector quantity that includes direction.
What is the unit of distance / displacement?
metre (m)
Distance is a scalar quantity, while displacement is a vector quantity.
What is the unit of work done?
joule (J)
Work done is the product of force and distance moved in the direction of the force.
What is the unit of gravitational field strength?
newtons per kilogram (N/kg)
Gravitational field strength is the force experienced by a mass in a gravitational field.
What is the unit of spring constant?
newtons per metre (N/m)
The spring constant measures the stiffness of a spring.
What is the unit of extension / compression?
metre (m)
Extension and compression refer to the change in length of a spring.
What is the unit of pressure?
pascal (Pa)
Pressure is defined as force per unit area.
What is the unit of area?
square metres (m²)
Area measures the extent of a surface.
What is the unit of moment of a force?
newton metre (Nm)
Moment of a force is the rotational equivalent of linear force.
What is the unit of wave speed?
metres per second (m/s)
Wave speed is the speed at which a wave travels through a medium.
What is the unit of frequency?
hertz (Hz)
Frequency measures how often a wave occurs in a given time period.
What is the unit of wavelength?
metre (m)
Wavelength is the distance between successive crests of a wave.
What is the unit of time?
second (s)
Time is a measure of the duration of events.
What is the unit of magnetic flux density?
tesla (T)
Magnetic flux density measures the strength of a magnetic field.
What is the unit of charge?
coulomb (C)
Charge is a property of matter that causes it to experience a force in an electromagnetic field.
What is the unit of potential difference (voltage)?
volt (V)
Voltage measures the difference in electric potential energy per unit charge.
What is the unit of current?
ampere (A)
Current is the flow of electric charge.
What is the unit of resistance?
ohm (Ω)
Resistance measures how much a material opposes the flow of electric current.
What is the unit of power?
watt (W)
Power is the rate at which work is done or energy is transferred.
What is the unit of energy?
joule (J)
Energy is the capacity to do work.
