Electromagnetic radiation travels in straight lines.
That is called a light ray or an electromagnetic wave.
Thermal energy in the form of electromagnetic radiation travels through space at the speed of light. It does not require a medium to propagate and can transfer heat through electromagnetic waves, such as infrared radiation. The energy is absorbed by objects in its path, causing the molecules within those objects to vibrate and raise their temperature.
If there is physical matter between two points, then thermal energy (heat) can travel between them by means of conduction or convection. If there is no material in the path, or the material in the path is transparent in the infrared, then thermal energy can travel the path by radiation.
If there is physical matter between two points, then thermal energy (heat) can travel between them by means of conduction or convection. If there is no material in the path, or the material in the path is transparent in the infrared, then thermal energy can travel the path by radiation.
An object that is a good radiator of electromagnetic waves is typically a poor insulator, as it readily releases energy. Conversely, a good insulator tends to inhibit the transfer of heat. Reflectors of heat and absorbers of electromagnetic energy are typically different materials. A refractor of electromagnetic energy alters the path of light waves.
energy (as wavelengths) travels in straight lines until acted on by some other force.
Electromagnetic waves can be reflected when they encounter a surface that is smooth and flat. The waves bounce off the surface at the same angle they hit it, following the law of reflection. This reflection process allows electromagnetic waves to change direction and travel in a different path.
EM waves travel through space between atoms, but are either; reflected, refracted or absorbed by physical matter when they collide. Gravity can also bend the path of EM wave travel.
It needs what is commonly known as a "path of least resistance".
Yes, vibrations and waves can spread out through space as they travel from their source. Depending on the type of wave, such as electromagnetic waves or sound waves, they can propagate through the medium (like air or vacuum), carrying energy and information along their path.
Light waves travel in straight lines unless they encounter a medium density change or are reflected or refracted by a surface. This results in bending or scattering of the light waves along their path.
The path on which planets travel is called their orbit.