Question | Answer |
What is mass? | The density and volume of an object (weight) |
What does a balance measure? | The mass of an object |
What unit usually measures mass for scientists? | Grams |
How does sound travel? | In waves |
What is a form of energy that is produced and transmitted by vibrating matter? | Sound |
What does a centimeter ruler or metric stick measure? | Distance |
From what do sound waves move out in all directions? | Source |
What is the frequency of a vibrating object? | Pitch |
What type of wave is a sound wave? | Compression |
What does sound need to travel? | Matter/something to vibrate |
When is sound amplified? | When it resonates |
What happens when you increase the loudness? | You increase the amplitude |
What happens when you increase the frequency or speed of vibrations? | You increase the pitch |
Why does sound travel more slowly through a gas? | Because the molecules are more spread out |
What phase of matter has molecules close together? | Solid |
What color has the shortest wavelength? | Violet |
Which color has the longest wavelength? | Red |
White light is a combination of what colors? | Red, orange, yellow, green, blue, indigo, and violet |
Unlike sound, how do light waves travel? | In straight paths |
Does light need a medium to travel through like sound? | No, it travels best in outer space or in a vacuum |
Which travels faster, sound or light? | Light |
What do you call an object that allows some light to pass through? | Translucent |
What do you call an object that allows all light to pass through? | Transparent |
What is the name of a lens that curves inward? | Concave |
What is the name of a lens that curves outward? | Convex |