All flashcards
Flashcard 1: What is the correct conclusion if you see a speaker cone moving and you hear music?
Answer: The speaker cone vibrations make the sound. Moving parts create the sounds we hear.
Flashcard 2: Which statement uses observations as evidence: “It vibrated, so it made sound” or “It made sound because it is big”?
Answer: “It vibrated, so it made sound.”. Links what you see to what happens.
Flashcard 3: What is the correct cause-and-effect statement about vibration and sound?
Answer: Vibration causes sound. Movement must happen first to create sound.
Flashcard 4: Which choice is an observation (not a guess): “The bell is shaking” or “The bell is happy”?
Answer: “The bell is shaking.”. Facts you can see, not feelings or opinions.
Flashcard 5: Which option is the best evidence for vibration: “I heard it” or “I felt it shake”?
Answer: “I felt it shake.”. Touch detects vibrations better than hearing.
Flashcard 6: What should you conclude if a tuning fork makes sound, and the water splashes when it touches the fork?
Answer: The tuning fork is vibrating to make sound. Water movement proves the fork is vibrating.
Flashcard 7: What is the correct claim if you hear a sound and feel buzzing when you touch the object carefully?
Answer: The object is vibrating to make the sound. Feeling buzzing confirms vibration is happening.
Flashcard 8: What do you call the part of a sound-making object that moves back and forth?
Answer: The vibrating part. This part creates sound through movement.
Flashcard 9: Which statement correctly matches observation to claim: “I see movement” or “I think it is loud” as evidence?
Answer: “I see movement” is evidence. Observations must be things you can sense.
Flashcard 10: What is the best evidence that a guitar string is making sound by vibrating?
Answer: The string is moving back and forth. Visible movement proves vibration is occurring.
Flashcard 11: Which observation is evidence that a drum makes sound by vibrating: tight skin or moving skin?
Answer: Moving skin. Vibrating drumhead creates sound waves.
Flashcard 12: What should you conclude if you stop an object from vibrating and the sound stops?
Answer: Vibrations are needed to make the sound. No vibration means no sound production.
Flashcard 13: What should you conclude if you see a ruler on a desk moving back and forth and you hear a sound?
Answer: The ruler is vibrating and making the sound. Moving objects that vibrate produce sound.
Flashcard 14: Which observation best shows that an object is vibrating: still, shaking, or silent?
Answer: Shaking (moving back and forth). Back-and-forth movement shows vibration.
Flashcard 15: What is a vibration when you observe an object making a sound?
Answer: A vibration is a back-and-forth movement. Objects move repeatedly in opposite directions.
Flashcard 16: What happens to the sound when the vibrations get smaller and then stop?
Answer: The sound becomes quieter and then stops. Less vibration produces quieter sound.
Flashcard 17: What is the correct claim if you hear a sound but cannot see vibration with your eyes alone?
Answer: The object is still vibrating, even if tiny. Some vibrations are too small to see.
Flashcard 18: What should you conclude if you pluck a rubber band, see it blur, and hear a twang?
Answer: The rubber band vibrations make the twang. Blurring shows rapid back-and-forth motion.
Flashcard 19: Which observation supports the claim “No vibration means no sound”: silent object that is still or silent object that shakes?
Answer: Silent object that is still. Still objects cannot produce sound.
Flashcard 20: Identify the best evidence statement: 'I heard sound, so something must be .'
Answer: vibrating. Sound always means something is vibrating to create it.
Flashcard 21: What is the best observation-based claim when a plucked guitar string is moving?
Answer: The vibrating string is making the sound. Moving strings vibrate the air to create sound waves.
Flashcard 22: Which observation is the best evidence that your throat vibrates when you talk?
Answer: You can feel your throat moving when you speak. Vocal cords vibrate when we speak, creating sound.
Flashcard 23: What should you observe to use evidence that a drum makes sound by vibration?
Answer: The drumhead moves (vibrates) after it is hit. The drumhead's movement shows it's vibrating to make sound.
Flashcard 24: Which option is the correct cause-and-effect: vibration or sound comes first?
Answer: Vibration happens first; sound comes from it. Objects must vibrate to create sound waves.
Flashcard 25: What observation shows that a speaker is producing sound even if you cannot see air move?
Answer: The speaker cone vibrates in and out. Moving parts create vibrations that produce sound waves.
Flashcard 26: Identify the best evidence that a ruler on a desk is making sound when plucked.
Answer: The ruler is visibly vibrating. You can see the ruler moving back and forth when it makes noise.
Flashcard 27: Which statement best describes the vibration–sound relationship?
Answer: Sound is made when something vibrates. Vibrations are the cause; sound is the effect.
Flashcard 28: What is vibration in science when you are learning how sound is made?
Answer: A back-and-forth movement of an object. Objects move repeatedly in opposite directions when vibrating.
Flashcard 29: What is sound, based on the idea that vibrations create it?
Answer: A result of vibrations that can be heard. Vibrations create waves that our ears detect as sound.
Flashcard 30: Which option is the best evidence that a tuning fork makes sound by vibrating?
Answer: Its prongs visibly shake after being struck. The shaking prongs show vibration creating the ringing sound.