Physical Science
Physical Science Review
Waves, Sound and Light
Waves-
What are Waves? 1. 1 .The substance that a move through is called a medium. 2. True or False: Particles are squeezed together during rarefactions. 3. True or False: Waves that require a medium through which to travel are called electromagnetic waves. 4. True or False: The matter in the medium moves perpendicular to a transverse wave. 5. What medium is often used to transfer computer information? Optic Fibers 6. 6 .A sound wave is made of a series of compression and rarefactions 7. Analogue signals transmit information for such things as AM/FM radio 8. A disturbance that transfers energy from place to place is called a wave 9. In a compression wave, particles in the medium move in the same direction as the wave. 10. True or False: Mechanical waves use matter to transfer energy.
Characteristics of Waves 1. The frequency of a sound wave determines the pitch of the sound. 2. In a compression wave, particles in the medium move in the same direction as the wave. 3. A train of waves is moving at a speed of 30 m/s. The frequenct of the waves is 10 Hz. What is the wavelength? 3 m 4. A wave x meters long has a speed of y meters per second. The frequency of the wave is y/x hertz. 5. Tsunami waves are almost the same as ripples caused by throwing a rock into a pond. What is the major difference between the two? The energy source of tsunami waves is much greater. 6. A wave with a frequency of 0.5 Hz and a speed of 10 m/s has a wavelength of 20 m. 7. True or False: Sound waves travel faster through air than through solids. 8. The substance that a wave moves through is called a medium. 9. True or False: Particles are squeezed together during rarefactions. 10. True or False: According to the Doppler effect, light from a star moving away from Earth will have a higher frequency than light from a star moving toward Earth.
Interactions of Waves
Waves, Sound and Light
Waves-
What are Waves? 1. 1 .The substance that a move through is called a medium. 2. True or False: Particles are squeezed together during rarefactions. 3. True or False: Waves that require a medium through which to travel are called electromagnetic waves. 4. True or False: The matter in the medium moves perpendicular to a transverse wave. 5. What medium is often used to transfer computer information? Optic Fibers 6. 6 .A sound wave is made of a series of compression and rarefactions 7. Analogue signals transmit information for such things as AM/FM radio 8. A disturbance that transfers energy from place to place is called a wave 9. In a compression wave, particles in the medium move in the same direction as the wave. 10. True or False: Mechanical waves use matter to transfer energy.
Characteristics of Waves 1. The frequency of a sound wave determines the pitch of the sound. 2. In a compression wave, particles in the medium move in the same direction as the wave. 3. A train of waves is moving at a speed of 30 m/s. The frequenct of the waves is 10 Hz. What is the wavelength? 3 m 4. A wave x meters long has a speed of y meters per second. The frequency of the wave is y/x hertz. 5. Tsunami waves are almost the same as ripples caused by throwing a rock into a pond. What is the major difference between the two? The energy source of tsunami waves is much greater. 6. A wave with a frequency of 0.5 Hz and a speed of 10 m/s has a wavelength of 20 m. 7. True or False: Sound waves travel faster through air than through solids. 8. The substance that a wave moves through is called a medium. 9. True or False: Particles are squeezed together during rarefactions. 10. True or False: According to the Doppler effect, light from a star moving away from Earth will have a higher frequency than light from a star moving toward Earth.
Interactions of Waves