Gravitational force

Electromagnetic force

Weak nuclear force

Strong nuclear force

Frictional force

Kilogram

Gram

Pound

Ounce

Carat

Displacement

Velocity

Acceleration

Temperature

Force

$E_k = \frac{1}{2}mv^2$

$E_k = mv$

$E_k = \frac{1}{2}m^2v$

$E_k = mv^3$

$E_k = \frac{1}{2}mv^4$

Energy can be created or destroyed.

Energy can be transferred from one form to another.

Energy can be stored but not used.

Energy can be lost but not gained.

Energy is always constant.

Sound

Light

Heat

Electricity

Magnetism

The range of wavelengths of electromagnetic radiation.

The range of frequencies of electromagnetic radiation.

The range of energies of electromagnetic radiation.

The range of intensities of electromagnetic radiation.

The range of polarizations of electromagnetic radiation.

Gamma rays

X-rays

Ultraviolet rays

Infrared rays

Radio waves

$3 \times 10^8 \text{ m/s}$

$2 \times 10^8 \text{ m/s}$

$4 \times 10^8 \text{ m/s}$

$5 \times 10^8 \text{ m/s}$

$6 \times 10^8 \text{ m/s}$

Burning of wood

Rusting of iron

Photosynthesis

Nuclear fission

Nuclear fusion

Ampere

Volt

Ohm

Coulomb

Watt

Series circuit

Parallel circuit

Open circuit

Closed circuit

Short circuit

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

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

$R = \frac{V^2}{I}$

$R = \frac{I^2}{V}$

$R = \frac{V}{I^2}$

Silicon

Germanium

Gallium arsenide

Copper

Aluminum

Conductors allow electric current to flow easily, while insulators do not.

Conductors have high resistance, while insulators have low resistance.

Conductors are made of metals, while insulators are made of non-metals.

Conductors are used in electrical circuits, while insulators are not.

All of the above.