# data[].attributes.body
Perform the following conversions.
The International System of Units is used:
1. 2,5 m  = __________ cm
2. 18 mL = __________ L
3. 68 kJ  = __________ J
4. 6 500 mg = __________ kg
5. 101 kPa   = __________ Pa
6. 325 ms    = __________ s
7. 4,5 m3       = __________ dm³

# data[].attributes.body
https://youtu.be/wWWV9DeW1Qg

# data[].attributes.body
Measures the mass of various objects. It consists of three beams, each of which is provided with a single sliding weight that has a size corresponding to the gradations of the notched scale on each beam.

# data[].attributes.headline
CAN YOU DO THE FOLLOWING VOLUME READINGS?

# data[].attributes.subject
CAN YOU DO THE FOLLOWING VOLUME READINGS?

# data[].attributes.headline
HOW TO LOAD A THREE BEAM BALANCE AND DO MASS READING

# data[].attributes.subject
HOW TO LOAD A THREE BEAM BALANCE AND DO MASS READING

# data[].attributes.headline
STEP 2: SLIDE ALL COUNTERWEIGHTS TO ZERO

# data[].attributes.subject
STEP 2: SLIDE ALL COUNTERWEIGHTS TO ZERO

# data[].attributes.headline
STEP 3: LOAD PAN, SLIDE COUNTERWEIGHTS TILL POINTER ON ZERO

# data[].attributes.subject
STEP 3: LOAD PAN, SLIDE COUNTERWEIGHTS TILL POINTER ON ZERO

# data[].attributes.headline
STEP 4: DO READING FROM 100s to 10s to digits

# data[].attributes.subject
STEP 4: DO READING FROM 100s to 10s to digits

# data[].attributes.body
What is this reading?

# data[].attributes.headline
What is this triple beam balance reading?

# data[].attributes.subject
What is this triple beam balance reading?

# data[].attributes.body
Density = An object’s mass per unit volume.

# data[].attributes.headline
EXPLAIN THESE LAYERS IN TERMS OF DENSITY

# data[].attributes.subject
EXPLAIN THESE LAYERS IN TERMS OF DENSITY

# data[].attributes.headline
ARCHIMEDES’S EUREKA MOMENT WITH A GOLD CROWN USING THE DISPLACEMENT METHOD

# data[].attributes.subject
ARCHIMEDES’S EUREKA MOMENT WITH A GOLD CROWN USING THE DISPLACEMENT METHOD

# data[].attributes.attachment_link.title
Archemedes inventions : Golden crown in water bath

# data[].attributes.attachment_link.title
Density Flasks and Cold Fronts! #science #scienceteacher #experiment #education #density #fronts

# data[].attributes.attachment_link.title
Density - GCSE Science Required Practical

# data[].attributes.body
If the object's density is less than the density of water (e.g., 0.5 g/cm³), it will float on the water's surface because the water exerts an upward force (buoyancy) on the object, which is greater than the force of gravity pulling it downward.

The object displaces a volume of water equal to its own weight, and it stays afloat.

If the object's density is equal to the density of water (1 g/cm³), it will hang suspended halfway in the water. This is because the buoyant force is equal to its weight.

If the object's density is greater than the density of water, it will sink, and the depth of sinking will depend on the difference in densities because the gravitational force pulling it down is stronger than the buoyant force pushing it up.

The depth to which the object sinks will depend on the difference in densities between the object and the water.

Heavier objects will sink deeper.

# data[].attributes.body
Do these eight problems from the class notes:
1.
What is the density of coal if 15 cm³ of it has a mass of 27 g?

2.
Calculate the mass of 25 cm3 of mercury, if it has a density of 13,6 g.cm⁻³.

3.
What is the volume of gold in a crown if it has a mass of 2 kg? Gold has a density of 19,3 g/cm³.

4.
What mass of air is in a room if its density is 1,26 kg/m³ and the dimensions of the room are 10 m by 12 m and it has a height of 4 m?

5.
A rock of mass 86 g is lowered into some water in a measuring cylinder. The level of the water rose from 40 cm3 to 78 cm³. What was the density of the rock?

6.
A rectangular block of copper has a density of 8,94 g.cm⁻³ and a mass 112 g. What is the length of the block if it has height 0,9 cm and breadth 2,8 cm?

7.
A neutron star consists of matter with a density of about 5 x 10¹⁴ g.cm⁻³. If a teaspoon of it is 5 cm³, what would be the mass of a teaspoon of matter from a neutron star?

8.
A 6,0 m rectangular rod has the same breadth and width. If it was made of iron (density 7,8 g.cm⁻³) and had a mass of 14 kg, what was its breadth and width?

# data[].attributes.attachment_link.title
Opening Snack Containers with Hydrogen //  Homemade Science with Bruce Yeany