Definitions
Matter & properties
True or False
Other
100
What is an example of something with matter?
Everything has matter! Pencil, desk, car, book.
100
What are the two main properties of matter?
The main properties of matter are mass and volume
100
A backpack has a larger volume than a pencil case
True
100
Which ball has more volume? Why?
The basketball has more volume because it takes up more space than the baseball.
200
What is the definition of mass?
Mass is the amount of matter an object has
200
What is this used to measure?
The scale is used to measure mass
200
We can find the density of an object if we know its mass and volume
True! The formula for finding density is mass / volume
200
Which has more mass: A t-shirt or a cellphone?
The cellphone has more mass, even if it has less volume.
300
What is the definition of volume?
Volume is the amount of space that matter occupies
300
What are some units we use to measure volume?
We can use liters and mililiters to measure volume
300
The words mass and weight mean the same thing
False, weight is related to the effects of gravity. The mass of an object does not change with gravity
300
If you drop both of these at the same height, which will hit the ground first and why?
The brick will hit the ground first because the feather has more air resistance and because the brick has more mass
400
What is the definition of density?
The relationship between the mass of a substance and how much volume it takes up
400
If an object has a volume of 5 liters and a mass of 30 kilograms, what is its density?
The density of the object is 6 kg/liters
400
Objects with the same mass always have the same density
False. The density of an object depends on both mass AND volume.
500
What is the definition of buoyancy (flotabilidad) and what does it depend on?
The buoyancy of an object is the ability it has to float in liquid or gas, and it depends on density
500
If you have a sponge and a brick with the same volume, which will have a higher density? Why?
The brick will have a higher denisty because it has more mass than a sponge but in the same amount of volume.
500
An object floats if its density is more than the liquid it is in.
False. It is the opposite! An object will sink if its density is more than the liquid it is in.