All flashcards
Flashcard 1: What is the main observation that shows a material is opaque in a flashlight test?
Answer: Light is blocked; shadow is dark and clear. Opaque materials block all light, creating sharp, dark shadows.
Flashcard 2: Identify the best classification: no light passes through the material at all.
Answer: Opaque. Complete light blockage is the defining feature of opacity.
Flashcard 3: Identify the best classification: you can see objects clearly through the material.
Answer: Transparent. Clear visibility through the material indicates transparency.
Flashcard 4: Identify the best classification: a material lets light through, but you cannot see details.
Answer: Translucent. Light passes through but scatters, preventing clear vision.
Flashcard 5: Which material should make the faintest shadow: clear plastic wrap, wax paper, or book cover?
Answer: Clear plastic wrap. Clear plastic is transparent, creating little to no shadow.
Flashcard 6: Which material should make the darkest shadow: wax paper, clear plastic, or cardboard?
Answer: Cardboard. Cardboard blocks all light, while the others let some or all light through.
Flashcard 7: What is the main observation that shows a material is translucent in a flashlight test?
Answer: Some light passes; shadow is faint or blurry. Translucent materials scatter light, creating partial, fuzzy shadows.
Flashcard 8: What is the main observation that shows a material is transparent in a flashlight test?
Answer: Light passes through clearly; no shadow. Transparent materials allow all light through, casting minimal shadows.
Flashcard 9: Which option best matches opaque: clear window, frosted plastic, or wood block?
Answer: Wood block. Wood completely blocks light, unlike see-through window or cloudy plastic.
Flashcard 10: Which option best matches translucent: clear glass, wax paper, or aluminum foil?
Answer: Wax paper. It lets light through but blurs images, unlike clear glass or blocking foil.
Flashcard 11: Which option best matches transparent: clear plastic wrap, wax paper, or cardboard?
Answer: Clear plastic wrap. You can see through it clearly, unlike the blurry wax paper or solid cardboard.
Flashcard 12: What word describes a material that does not let light pass through?
Answer: Opaque. Light cannot penetrate the material, creating a complete shadow.
Flashcard 13: What word describes a material that lets some light pass but makes images look blurry?
Answer: Translucent. Light scatters as it passes through, creating a foggy or cloudy effect.
Flashcard 14: What word describes a material that lets almost all light pass through clearly?
Answer: Transparent. Light passes through completely without scattering, like clear glass.
Flashcard 15: Which word means “blocks light” when you compare materials by how they affect light?
Answer: Opaque. Materials that prevent light from passing through are opaque.
Flashcard 16: Which word means “lets light pass through clearly” when comparing materials and light?
Answer: Transparent. Materials allowing unobstructed light passage are transparent.
Flashcard 17: Which word means “lets some light pass through” when comparing materials and light?
Answer: Translucent. Materials that partially transmit light are translucent.
Flashcard 18: Choose the correct class: frosted bathroom window glass that blurs what you see.
Answer: Translucent. Frosted glass scatters light, making images unclear but visible.
Flashcard 19: Choose the correct class: a clear glass cup that you can see through easily.
Answer: Transparent. Clear glass allows unobstructed light passage and vision.
Flashcard 20: Choose the correct class: a metal pan that blocks a flashlight beam completely.
Answer: Opaque. Metal completely blocks light from passing through.
Flashcard 21: Which option best describes a clear plastic cup: transparent, translucent, or opaque?
Answer: Transparent. Clear plastic allows light to pass through completely.
Flashcard 22: Identify the classification: a material makes little or no shadow because light passes through.
Answer: Transparent. Most light passes through, creating minimal shadow.
Flashcard 23: Which option is the best classification if you can read words clearly through the material?
Answer: Transparent. Clear visibility indicates complete light transmission.
Flashcard 24: Which option is the best classification if you can see light but cannot read words through it?
Answer: Translucent. Light passes but scatters, preventing clear reading.
Flashcard 25: Which option is the best classification if the flashlight beam does not show on the other side?
Answer: Opaque. No light transmission means the material blocks it completely.
Flashcard 26: Which material is more transparent: a clear window or a paper towel?
Answer: A clear window. Windows are designed for clear visibility, unlike paper towels.
Flashcard 27: Which material blocks more light: wax paper or cardboard?
Answer: Cardboard. Cardboard is opaque while wax paper is translucent.
Flashcard 28: Identify the classification: a material makes a dark, sharp shadow in bright light.
Answer: Opaque. Opaque materials block light, creating dark shadows.
Flashcard 29: What observation shows a material is opaque when you shine a flashlight at it?
Answer: No light passes through it. Opaque materials completely block light transmission.
Flashcard 30: Identify the classification: a material makes a light, fuzzy shadow in bright light.
Answer: Translucent. Some light passes through, creating faint shadows.