Measurements
1.0g/mL
What is the density of water?
MASS divided by VOLUME
What is the formula for density?
The measurement of how much mass of a substance is contained in a given volume.
What is the definition of density?
Net force down equals 7 N; Net force upward equals 3 - what is the net force and what will the object do?
What is 4 N downward force and sink?
Anything that causes a change in the motion of an object.
What is a Force?
Greater than 1.0g/mL
What is the density of an object that sinks in water?
Mass / Density
What is the formula for volume?
The amount of space an object takes up.
What is the definition of volume?
Net force down equals 5 N; Net force upward equals 5 - what is the net force and what will the object do?
What is the net force is zero and it will "flink"; it has neutral buoyancy?
The buoyant force acting on an object equals the weight of the fluid displaced.
What is Archimedes' Principle?
Less than 1.0g/mL
What is the density of an object that floats in water?
Density X Volume
What is the formula for mass?
The tendency of a material to rise or float in a liquid or air.
What is the definition of buoyancy?
Mass = 120 g; Volume = 8 cm X 5 cm X 1 cm
What is the density = 3 g/cm3?
Gravitational Force and Buoyant Force.
What are the two forces acting on an object submerged in a liquid?
g/mL or g/cm3
What are the units for density?
Length x Width x Height
How do you calculate the volume of rectangular prism or a cube?
Total mass of an object divided by total volume.
What is density?
A rock has the density of 2.0 g/cm3 and volume of 30 cm3, it's mass is _____.
What is 60 grams?
A hot air balloon rises.
What is by heating the air inside the balloon with the burner, it becomes lighter than the cooler air on the outside. This causes the balloon to float upwards (to become buoyant)?
If the air is allowed to cool, the balloon begins to slowly sink.
Newtons
What is the unit in which buoyant force is measured?
By submerging the object in water and measuring how much the water level increases - the displaced amount of water.
How do you find the volume of an irregular shaped object?
An upward force exerted by a fluid that opposes the weight of an immersed object.
What is Buoyant Force?
A object's mass is 250g. When placed in a graduated cylinder with 220 ml of water, the water increased to 270 ml. The density of this object is __________ and where in the graduated cylinder is this object?
What is 5 g/ml and it has sunk to the bottom.
A diet coke (340g - 355 ml) floats and a regular coke (394g - 355 ml) sinks - explain.
What is although their volume is the same (355 ml), the diet coke has less mass, causing its density to be under 1 g/ml (.95), so it will float? The coke's density is over 1 (1.10), so it sinks.