Matter
Matter is anything that has _____ and takes up ____
Mass, space
Masa, espacio
What is the unit for Weight?
Newtons (N)
What are the units used for mass?
The unit for mass are:
kg = kilograms
g = grams
mg = miligrams
What are the units for volume?
The units for volume are cm3 and mL
What is the formula for Density?
Density = mass (g) / volume (cm3)
D = g/cm3
Mention 3 states of matter.
Solid, liquid and gas
What is Weight?
The measure of the gravitational force acting on an object. More gravitational force more weight.
What is Mass?
Mass is the amount of matter in an object
True or False: 2 or more objects can occupy the same space at the same time.
False.
What is density?
Density is the amount of mass per unit of volume of an object
The state of a matter that changes from gas to liquid is called:
a. Condensation
b. Evaporation
c. Sublimation
A matter changes from gas to liquid is (a) condensation.
Weight is measured using:
a. water displacement
b. a balance
c. a spring scale
c. a spring scale
Mass is measured using:
a. water displacement
b. a balance
c. a spring scale
b. a balance
How to find the Volume of a cubed solid (regular shape)?
Length x Width x Height
What is the density of water?
The water density is 1.0 g/cm3
What is a physical change of matter?
a. toasting marshmallow
b. melting ice cream
c. rotting banana
A physical change of matter is the (b) melting ice cream
What is the difference between mass and weight?
Mass is the measure of the AMOUNT OF MATTER in an object and is ALWAYS constant
Weight is a measure of the GRAVITATIONAL FORCE acting on an object and can CHANGE depending on location.
True or False:Mass is ALWAYS constant no matter the location
True
How can you calculate the volume of an irregularly shaped object?
Water displacement test
Which liquid will sink in the water?
a. Milk - 0.93 g/mL
b. Honey - 1.36 g/mL
c. Vegetable oil - 0.90 g/mL
The honey (1.36 g/mL) will sink because was more density than water.
What is a chemical change of matter?
a. painting a house
b. blowing a balloon
c. rusting car
A chemical change of matter is the (c) rusting car.
Based to these planets gravitational force, where you will have more weight?
a. Pluto 0.62 m/s²
b. Mars 3.72 m/s2
c. Venus 8.87 m/s²
c. Venus 8.87 m/s²
More gravitational force, more weight. The moon has less gravity than Earth, so astronauts use heavy suits to avoid floating away.
The mass of a basketball is 60 kg. What would be the mass of the same ball in the moon?
a. same
b. less
c. more
a. same
A marble is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 47.10 mL mark, from this information, calculate the volume.
Volume (of water displacement):
Volume = ending water volume - starting water measure
Volume = 47.10 mL - 45.50 mL
Volume = 1.6 mL
A rectangular block of copper metal has a mass of 1896 g. The dimensions of the block are 212.52 cm3. What is the density of copper?
Density = mass/volume
D= 1896 g / 212.52 cm3
D= 8.92 g/cm3