| True/False | Multiple Choice | Definitions | Definitions 2 | Short Answer |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
Density equals the Mass divided by the Volume.
Density equals the Mass divided by the Volume.
True
The primary function of a pump in a hydraulic system is to move liquids.
The primary function of a pump in a hydraulic system is to move liquids.
False
Temperature does affect viscosity.
Temperature does affect viscosity.
True
Pascal’s law states that an enclosed liquid transmits force in an upward direction.
Pascal’s law states that an enclosed liquid transmits force in an upward direction.
False
Because water is a liquid, it has a lower density than ice.
Because water is a liquid, it has a lower density than ice.
False
When a car is started on a cold February morning, the viscosity of the motor oil would be decreased by: a) running the engine b) charging the battery c) changing the antifreeze d) replacing the thermostat
When a car is started on a cold February morning, the viscosity of the motor oil would be decreased by: a) running the engine b) charging the battery c) changing the antifreeze d) replacing the thermostat
a) running the engine
A favourite game you play with friends at the lake is to find a large rock on the bottom of the lake and throw it so that you can see who can dive and find it again the fastest. You notice that the large rocks are much easier to lift off the bottom of the lake and carry in the water than they are to throw through the air. The reason for this is the a) mass of the rock b) density of the water c) buoyant force d) I am the strongest person in the WORLD!
A favourite game you play with friends at the lake is to find a large rock on the bottom of the lake and throw it so that you can see who can dive and find it again the fastest. You notice that the large rocks are much easier to lift off the bottom of the lake and carry in the water than they are to throw through the air. The reason for this is the a) mass of the rock b) density of the water c) buoyant force d) I am the strongest person in the WORLD!
c) buoyant force
4. The density of milk that has a mass of 5.2 g for 5.0 mL is: a) 5.2 g/mL b) 5.0 mL/g c) 0.96 mL/g (volume/mass) d) 1.04 g/mL (mass/volume)
4. The density of milk that has a mass of 5.2 g for 5.0 mL is: a) 5.2 g/mL b) 5.0 mL/g c) 0.96 mL/g (volume/mass) d) 1.04 g/mL (mass/volume)
d) 1.04 g/mL (mass/volume)
5. When air is released in a submarine and seawater enters its ballast tanks, the submarine is able to dive. This process enables the submarine to a) increase its buoyancy. b) decrease its viscosity. c) increase its density. d) decrease its pressure.
5. When air is released in a submarine and seawater enters its ballast tanks, the submarine is able to dive. This process enables the submarine to a) increase its buoyancy. b) decrease its viscosity. c) increase its density. d) decrease its pressure.
c) increase its density.
3. In a model hydraulic press, a pedal is used to push down and create the input force on the large piston, while the output force is on the small piston to lift up the load. However, the model didn’t work. What is wrong with it? a) The pistons should have the same diameter. b) The input force should be on the smaller piston. c) Both pistons should be smaller. d) Both pistons should be larger.
3. In a model hydraulic press, a pedal is used to push down and create the input force on the large piston, while the output force is on the small piston to lift up the load. However, the model didn’t work. What is wrong with it? a) The pistons should have the same diameter. b) The input force should be on the smaller piston. c) Both pistons should be smaller. d) Both pistons should be larger.
b) The input force should be on the smaller piston.
What is Density?
What is Density?
the amount of mass per unit of volume
What is Compressibility?
What is Compressibility?
the ability to become more compact when pressure is applied
What is viscosity?
What is viscosity?
a fluid’s internal resistance or friction that keeps it from flowing
What is valve?
What is valve?
device that opens and closes to control fluid flow
What is mass?
What is mass?
the amount of matter in a substance
What is manufactured?
What is manufactured?
made by machines
What is fluid?
What is fluid?
any matter that has no fixed shape, can flow, and takes the shape of its container
What is pressure?
What is pressure?
a measure of the amount of force applied to a given surface area
What is pneumatic system?
What is pneumatic system?
confined, pressurized system that uses air or other gases to transmit forces
What is hydraulic system?
What is hydraulic system?
confined, pressurized system that uses water or some other liquid to transfer forces
Volume is 1.0mL and Mass is 25g. What is the density of that object?
Volume is 1.0mL and Mass is 25g. What is the density of that object?
25g/mL
If the density of water is approximately 1g/mL. If the density of an object is greater than water would it float or sink?
If the density of water is approximately 1g/mL. If the density of an object is greater than water would it float or sink?
sink
Give one difference between hydraulic and pneumatic devices
Give one difference between hydraulic and pneumatic devices
Hydraulic is liquid, Pneumatic is air
What is an example of a hydraulic or pneumatic device?
What is an example of a hydraulic or pneumatic device?
car's oil system (hydraulic), etc
What is Pascals Law?
What is Pascals Law?
Pascal's law states that pressure exerted anywhere on a confined fluid is transferred equally in all directions and is undiminished to every point of the fluid.
What is the Archimede's Principle?
What is the Archimede's Principle?
Any object, fully or partially immersed in a fluid is buoyed up by a force equal to the weight of the fluid it displaces.
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