Basic SI Definition
What is the primary reason for using a standard measurement system in science? a) To make calculations easier b) To allow scientists to compare data and communicate results c) To avoid using the metric system d) To measure only in meters
What is
To allow scientists to compare data and communicate results
The basic SI unit for measuring __________ is the meter (m).
meter, kilogram, liter, gram, cubic meter, density, mass, volume, length
What is length
If you have 2 liters of water, how many milliliters is that?
2 L = 2000 mL (multiply by 1000 to convert from L to mL)
Calculate the density of an object with a mass of 150 grams and a volume of 50 cm³. Include the appropriate units.
Is mass and weight on Earth the same?
Yes
Which of the following is NOT a basic SI unit?
a) Meter (m)
b) Kilogram (kg)
c) Inch (in)
d) Second (s)
What is
c)Inch
__________ is measured in kilograms (kg) and represents the amount of matter in an object.
meter, kilogram, liter, gram, cubic meter, density, mass, volume, length
What is Mass
Convert 5 kilometers to meters
What is 5 meters
5 km = 5,000 m Work: 5 × 1,000 = 5,000 m (1 km = 1,000 m)
A wooden block has a mass of 250 g and a volume of 500 cm³. Calculate its density
What is 0.5 g/cm³
Density = Mass ÷ Volume = 250 g ÷ 500 cm³ = 0.5 g/cm³
Is your mass and weight on the moon the same? Why
No, the force of gravity changes so our weight changes, but our mass stays the same
What property does the kelvin (K) measure? a) Mass b) Volume c) Temperature d) Density
What is
c) Temperature
The amount of space an object occupies is called __________, and it can be measured in liters (L) for liquids or cubic meters (m³) for solids.
meter, kilogram, liter, gram, cubic meter, density, mass, volume, length
What is Volume
A small rock has a mass of 25 grams. What is its mass in kilograms?
What is 0.025kg
25 g = 0.025 kg Work: 25 ÷ 1,000 = 0.025 kg (1 kg = 1,000 g)
An irregularly shaped rock has a mass of 54 g. When placed in a graduated cylinder, it displaces 20 mL of water. Calculate the rock's density.
2.7 g/cm³
Density = Mass ÷ Volume = 54 g ÷ 20 mL = 2.7 g/mL or 2.7 g/cm³
Describe the water displacement method for measuring the volume of an irregularly shaped object
(The math used)
Using a graduated Cylinder
Final Volume - Original Volume
Which prefix represents 1/100 of the base unit? a) Kilo- b) Deci- c) Centi- d) Milli-
What is c)Centi-
__________ is calculated by dividing mass by volume and is measured in kilograms per cubic meter (kg/m³)
meter, kilogram, liter, gram, cubic meter, density, mass, volume, length
What is Density
The volume of a beaker is 250 milliliters. Express this volume in liters
What is 0.25L
250 mL = 0.25 L Work: 250 ÷ 1,000 = 0.25 L (1 L = 1,000 mL)
A beaker contains 200 mL of a liquid with a mass of 180 g. What is the density of the liquid?
What is 0.9 g/mL
Density = Mass ÷ Volume = 180 g ÷ 200 mL = 0.9 g/mL (Note: 1 mL = 1 cm³, so the density can also be expressed as 0.9 g/cm³)
King Henry Died By Drinking Chocolate Milk
Explain the prefixes associated with each word
What is Kilo Hecto Deka Base Deci Centi Milli
Which of the following is NOT a property of matter? a) Volume b) Density c) Hardness d) Velocity
d)velocity
The SI unit for measuring time is the __________, while __________ is measured using the Kelvin scale
meter, kilogram, liter, gram, cubic meter, density, mass, volume, length
What is
second, temperature
A substance has a density of 2.5 g/cm³. Convert this density to kg/m³
What is 2,500 kg/m³
2.5 g/cm³ = 2,500 kg/m³
Step 1: Convert g to kg: 2.5 g = 0.0025 kg (1 kg = 1,000 g)
Step 2: Convert cm³ to m³: 1 cm³ = 0.000001 m³ (1 m = 100 cm, so 1 m³ = 1,000,000 cm³)
Step 3: Divide: 0.0025 kg ÷ 0.000001 m³ = 2,500 kg/m³
A marble has a density of 2.6 g/cm³ and a volume of 10 cm³. What is its mass?
What is 26g
Mass = Density × Volume = 2.6 g/cm³ × 10 cm³ = 26 g
The English system uses
Inch and foot
Celcius and Fahrenheit
pound and ounce
Give corresponding SI Units of measure
What is
Meter
Kelvin
Gram