What is the difference between weight, mass volume and density?
What is weight=force of gravity, mass=amount of matter, volume=space object takes up, density=mass/unit of volume
100
What is volume by displacement?
What is putting object in water
100
Define Density
What is a measure of the mass per unit of volume of a substance
100
Define buoyancy
What is upward supportive force
100
What is the advantages and disadvantages to oil floating?
What is ad=easily cleaned up dis=oil get's into animals food and habitat
200
What is a Characteristic property and give 3 examples
What is a property that makes a substance distinct from others. Boiling point, Freezing point, density
200
How do you find volume?
What is height + lengh + width
200
How do you calculate density?
What is m/v
200
finnish the sentence.....
when an object is put in a fluid it displaces a certain amount of fluid. the weight of the displaced water equals _______________________
What is the buoyant force
200
Why is hydrogen gas a better and worse choice for air balloons than helium?
What is hi=less dense, cheaper, more explosive
300
What is buoyancy?
What is the upward supportive force on an object or fluid
300
Define Weight Volume and mass
What is look to vocab
300
What is the density of distilled water?
What is 1.0 g/ml
300
Give 2 rules of float or sink?
What is must be less dense than fluid. object must weigh less than the water it displaces
300
what is negative buoyancy?
What is sink
400
What is a ballast tank and a swim bladder, how are they related?
What is swim bladder= a pouch inside fish body that helps it move up and down using buoyancy ballast tank= same thing only on a submarine
400
What is 1L in cm3?
What is 1000cm3
400
Which is more dense, distilled liquid water or ice?
What is liquid water
400
True or false? the shape of an object affects it's buoyancy
What is true
400
What is possitive buoyancy?
What is float/rise
500
Name an example (besides ballest tank) that we have used a thing from nature to make and invention using buoyancy
What is lily pad and pdf
500
Describe 3 ways of finding the volume of an object
What is w,h,l, volume by displacement, overflow can
500
What units can be used to calculate density?
What is g/ml g/cm3, or gases= kg/m3
500
Denser fluids exert less buoyant force true or false?