Measurements
What is the density of water?
1.0g/mL
What is the formula for density?
DENSITY = MASS divided by VOLUME
The measurement of how much mass of a substance is contained in a given volume.
What is the definition of Density?
Buoyant force is greater then the gravitational force.
The object floates
Anything that causes a change in the motion of an object.
Define Force?
When an object is Greater than 1.0g/mL
What is the density of an object that sinks in water?
Mass / Density
Formula for volume?
The amount of space an object takes up.
What is the definition of Volume?
Why do objects float more easily in salt water?
Salt increases the water's density
The buoyant force acting on an object equals the weight of the fluid displaced.
Archimedes' Principle?
When an abject is Less than 1.0g/mL
What is the density of an object the floats in water?
Density X Volume
Formula for mass?
The tendency of the material to rise or float in a liquid.
Define Buoyancy?
What type of buoyancy would fish have that isn't at the bottom of the lake and isn't at the top/ surface?
Neutral Buoyancy.
What are the two forces acting on an object submerged in a liquid?
Gravitational Force and Buoyant force.
What are the units for Density?
g/mL
If you want to find the volume of a solid object like a square. You could us what equation?
= Length x Width x Height
Total mass of an object divided by total volume.
What is average density?
Explain what happens to the density of a substance that is heated?
The density of a substance will Decrease. Molecules spread out And takes up more volume. The Mass stays the same.
Why is density important to understand?
To figure out if an object sinks or floats in water, & density is an important physical property of an element.
Buoyant force is measured in------.
Think Force
Newtons
How will you find the volume of an irregular object?
By submerging the object in water and measuring how much the volume of the water increases. This amount of displaced water represents the volume of the submerged object.
The upward force excerted on an object submerged in the fluids.
What is Buoyant force?
The Diet Cola floated because of lower density then Regular Cola.Why
Regular coke has sugar
How does Hot air balloon float in air?
When temperatures rise, the gas expands and becomes less dense than surrounding air and hot air balloon floats.