A 1. What does a wave carry? A. energy B. matter 2. Mechanical waves transport energy from A. alternately vibrating particles of the medi B. vibrating particles and traveling particles 3. Waves which require a medium to propa A. electromagnetic waves B. mechanical waves 4. Energy from the sun reaches the Earth A. infrared waves B. ultraviolet waves 5. As a longitudinal wave passes throug A. circles B. ellipse fancy

1. A wave carries energy from a source to a point some distance away. A wave is reflected by a barrier. The reflected wave moves away from the barrier at an angle that is equal to the angle with which the incoming wave moved towards the barrier. When a wave is slowed down, it refracts—that is, changes direction.

2. no exp.

3. Mechanical Wave: It requires a matter to propagate and these waves are also known as an elastic wave. Two types of mechanical wave are there; Longitudinal: Vibration of particles in a medium and the propagation of the wave in the same direction. Example: Sound waves in air.

4. All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.

5. A longitudinal wave is a type of mechanical wave, or wave that travels through matter, called the medium. In a longitudinal wave, particles of the medium vibrate in a direction that is parallel to the direction that the wave travels.

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