Density
True or false. A substance can have different densities depending on its temperature.
What is true?
What is the formula for density?
What is Density=Mass/Volume?
What is a hypothesis?
What is an educated guess?
What is displacement?
What is when an object enters the water and pushes the water away from the object to make room for itself. This causes the amount of water to rise. The force of gravity and buoyancy acy on an object.
True or false. Cold water floats on warmer water because it has a lower density than that of warm water.
What is false.
What is the formula for mass and volume?
What is Mass= Density x Volume?
AND
What is Volume= Mass/ Density?
What is vegetable oil, water, and glycerin?
What is Archimedes' Principle?
Archimedes principle states that when an object enters water, it causes displacement. The amount of displacement of water is based on the density of the object entering the water.
True or false. As a substance warms up, the particles move faster and farther apart. This causes the volume to increase even though the number of particles stays the same.
What is true.
The volume of a diamond is 48.8 ml, and its density is 0.92 g/ml. What is the mass of the diamond?
What is 44.9 g?
What is force?
What are the units of force called?
What piece of equipment is used to measure force?
What is a push or pull that acts on an object.
What are Newtons?
What is a Newton Spring Scale?
What is the difference between the force of gravity and buoyancy?
What is gravity is the force caused by the mass or weight of the earth and buoyancy is the upward force extended on an object.
How is density different from viscosity?
What is viscosity is how thick or thin a substance is from the temperature so it effects how it flows. Density looks at how close the particles are, the volume, and how much it weighs, the mass.
The density of a 0.15 kg piece of iron is 0.48g/ml. What is its volume?
What is 0.31 ml?
Oil companies use the principles from an experiment we did to help maximize the amount of oil that they can pump out of an underground deposit. What do you think they do to help them move most of the oil in a depoisit to one area?
What is fill the deposit area with water, which has a buoyant force, to displace the oil to pump out more.
What is a buoyant force? What is an example of a buoyant force?
What is the upward force exerted on an object. An example of this is when someone is trying to swim to the bottom and gets pulled up by the bouyant force.
Why can solids support objects more easily than fluids can?
What is because the particles are more attracted to each other, therefore making it easier to hold the shape and support objects. Particles of fluids are less attracted to each other and therefore can't hold a shape independently.
An object measures 20 m X 5 m X 3 m and weighs 30 kg. What is its density?
What is 0.1 kg/m?
You would crawl on the floor because the smoke rises, therefore having more oxygen closer to the ground. Oxygen displaces smoke.
Complete the following sentences...
An object will rise in a fluid when its density is _______ than a fluid.
An object will sink in a fluid when its density is _______ than a fluid.
An object will float or level with a fluid when its the __________ as a fluid.
What is less?
What is more?
What is the same?