Density
What is the equation for density
Density = Mass / Volume
What is the equation for Pressure?
Pressure = Force / Area
What is the pivot?
The fixed point in a lever
What is the density of water in grams per cubic centimeter
1.0 g/cm3
What is the SI unit for pascal (Pa)?
N/m2
What is a beam?
Rigid part of a lever
Place the substances in order from lowest density to highest density. (Water, Gold, Ice, Air, Aluminum, Hydrogen gas)
HYDROGEN --> AIR --> ICE --> WATER --> ALUMINUM --> GOLD
1 atm = 100,000 Pa
Calculate the force of the atmosphere on a person who has a surface area of 2.75 m2
275,000 N
What is principal of moments?
Term used to describe a balanced turning effect
I have an irregular shaped object that has a mass of 500g, how do I determine the density of the object.
First find the mass by weighing the object and then the volume of the object by the displacement method, then use the calculation D = M/V
Find the pressure exerted by a force of 600 Newtons on an area of 30 m2. Give your answer in N/m2
20 N/m2
A child and an adult are sitting on a seesaw. Determine the distance from the pivot a 30kg child must sit in order to balance the seesaw if the adult has a mass of 100kg and is sitting 1.5 meters from the pivot.
5 meters
Determine the volume of an object which has a density of 11.34 g/cm3 and a mass of 100.00 kg.
8,818.34 cm3
State 2 different ways to increase the pressure of a gas inside of a container
Add more molecules of gas to a container and Heat the gas
Determine the length of beam necessary to lift an elephant off the ground using your own body mass of 85 kg. The elephant has a mass of 5,400 kg and is 1 meter from the pivot
64 meters