All of the following are periodic motions except ...................... .

• the movement of the Moon around the Earth

• the train motion

• the pendulum motion

• the sunflower motion

All of the following are transitional motions except ........................... .

• train motion

• bike motion

• water waves

• car motion

.......................... waves are mechanical waves.

• Sound

• Light

• Electromagnetic

• Radio

.......................... waves are electromagnetic waves.

• Sound

• Water

• Light

• Sound and water

All of the following are from the properties of mechanical waves except ................................... .

• they are produced due to the vibration of the medium particles

• they need a medium to transfer through

• their speed if relatively low

• light waves is an example for them

All of the following are from the electromagnetic waves except ............................ .

• sound waves

• radio waves

• light waves

• infrared waves

.......................... have a thermal(heat) effect.

• Sound waves

• Ultraviolet rays

• Infrared rays

• Gamma rays

...................... are used for detecting the sites of the bone fractures.

• Ultraviolet rays

• Infrared rays

• X-rays

• Gamma rays

In the periodic motion, the .......................... .

• pathway is straight

• motion is regularly repeated

• time is regularly repeated

• speed is regularly changed

...................... is among the applications of ultraviolet rays.

• Photographing bones

• Night vision apparatus

• Sterilizing of the sets of surgical operation rooms

• Discovering of some swellings