Sound A | ||
#1 | In one word, what is sound created by? | Vibrations |
#2 | How does sound travel? | Sound travels in waves (sound waves). |
#3 | If a sound is shrill and piercing, like a whistle, is it low-pitched or high-pitched? | High-pitched |
#4 | Would a sound with rapid vibrations be low-pitched or high-pitched? | High-pitched |
#5 | If a sound is deep and rumbling, is it low-pitched or high-pitched? | Low-pitched |
Sound B | ||
#1 | What do whales, dolphins and bats use to find their way around? | Echolocation |
#2 | What is another word for echolocation? | Sonar |
#3 | Do sound waves of low-pitched sounds have a high or low frequency? | Low frequency |
#4 | What scientific unit measures the volume of sound? | Decibels (dB) |
#5 | What word refers to sounds so low that humans cannot hear them? | Subsonic |
Sound C | ||
#1 | When we speak, what do our vocal cords do? | Vibrate |
#2 | What is the organ of hearing? | Ear |
#3 | What is the best way to protect your ears if you must attend a loud concert? | Wear ear plugs or sound-blocking headphones |
#4 | True or False: The sound of a jet taking off is at or above the human pain threshold level for sound? | True |
#5 | Loud sounds become dangerous at which exact decibel level? | 130 dB |
Light A | ||
#1 | True or False: Light is a type of energy. | True |
#2 | A black 'hole' in the eye that lets light in is called.... | Pupil |
#3 | True or False: White light can be split up into the colours of the rainbow. | True |
#4 | A transparent cover that protects the eye is called.... | Cornea |
#5 | Another word for the bending of light rays is.... | Refraction |
Light B | ||
#1 | Objects that let all the light through are.... | Transparent |
#2 | Objects that do not let any light through are.... | Opaque |
#3 | When sunlight passes through water droplets in the air, you might get this to form.... | Rainbow |
#4 | True or False: When light reflects off a mirror, it travels back on the same path it came. | False (Law of Reflection) |
#5 | This was used to tell time before watches were invented.... | Sundial |
Final Question | |
Does sound travel faster through solids, liquid or air? | Solids |