Basic Details
Word: Density
Part of Speech: Noun
Meaning: The amount of mass in a specific volume of a substance; how heavy something is for its size.
Synonyms: Thickness, fullness, concentration
Antonyms: Sparseness, thinness
Idioms and Phrases
- Dense as a brick: Used to describe someone who is not very smart or doesn't understand things easily. Example: "He was as dense as a brick when it came to math problems."
- Cut through the density: Means to simplify or clarify something complex. Example: "The teacher helped cut through the density of the science topic for us."
Usage Examples
Example 1: The density of water is one gram per cubic centimetre, which means a specific amount fills a defined space.
Example 2: Different materials have different densities; for example, oil is less dense than water, allowing it to float.
Example 3: Scientists study the density of planets to understand their composition and structure.
Fun Fact
Did you know that the density of the Earth is about 5.5 grams per cubic centimetre? This high density is due to its heavy metals, like iron, found deep within!
Famous Quote
"Density of matter does not equal density of thought." - Unknown
Multiple Choice Questions (MCQs)
1. What does "density" mean?
a) The colour of an object
b) The amount of mass in a specific volume
c) The smell of a substance
d) The temperature of an object
Answer: b) The amount of mass in a specific volume
2. Which of these is a synonym of "density"?
a) Sparseness
b) Thickness
c) Lightness
d) Fluidity
Answer: b) Thickness
3. Which of the following is an antonym of "density"?
a) Concentration
b) Thinness
c) Fullness
d) Mass
Answer: b) Thinness
4. Which sentence uses "density" correctly?
a) The density of the sandwich was delicious.
b) The density of the oil caused it to float on water.
c) The density of the sound was very loud.
d) The density of the sky turned blue.
Answer: b) The density of the oil caused it to float on water.
5. Which idiom refers to a lack of understanding, similar to "dense"?
a) Cut through the density
b) Dense as a brick
c) Light as a feather
d) Straight as an arrow
Answer: b) Dense as a brick
