Pressure
x8 points: This is a substance that can change shape
Fluid
This is obtained when density is multiplied by the volume occupied by an object
mass
x 5 points: State the type of fluid used in
a hydraulic system
a pneumatic system
liquid
gas
A substance with a mass of 12g and density of 6g/ml has this volume
2 ml
This is the SI unit of pressure and this is the SI unit of force
Pascal (Pa) and Newton (N)
This is the force that acts opposite the force of gravity and makes an object feel lighter
buoyant force
The brakes of a car are examples of common these systems
hydraulic systems
what is the density of a 2.5 cm3 glass marble that has a mass of 7.5 g?
3 g/cm3
Air pressure can be measured with this device
barometer
x3 points: According to the Archimedes' principle principle the buoyant force on an object is equal to the weight of the fluid ______ by the object
displaced
FREE POINTS
Lucky pick
what is the volume of 20 g of a liquid with density equals 1g/ml
20 ml
x2 points: What happens to atmospheric pressure as elevation increases?
decreases
Which property can help you predict whether an object will float or sink in a fluid
Density
A hydraulic system has a small piston with an area of 4 in2 and the larger piston has an area of 16 in2. If 30N of force is applied to the small piston, how much force is created by the larger piston.
120 N
x2 points: 28 g of iron is added to graduated cylinder containing 45 ml of water. The water level rises to the 49 ml mark. From this information calculate the density of iron.
7g/ml
it is decrease in volume caused by a force
Compression
What is the density of an object that takes up 4L and has a mass of 52g
13 g/L
Which system is considered simpler, hydraulic or pneumatic systems?
Pneumatic
What volume of silver metal will weigh exactly 2500.0 g. The density of silver is 10.5 g/cm3.
238.09 cm3