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Test your basic knowledge |
Everyday Physics
Start Test
Study First
Subjects
:
science
,
literacy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
frequency of light
wavelength
law of conservation of energy
volume fluid flow rate
2. Fbottom-Ftop=mg=(density x vol) x g
variation of pressure with depth
Engine efficiency
atmospheric pressure (atm)
pressure does what when depth is increased
3. The sum of the energy of all the molecules in the system
ultrasound
Internal energy
Total momentum before collision
Centripedal acceleration=
4. Force per unit area
Net force=0 net torque?0
Change in internal energy
Voltage
Pressure=
5. 1.25 kg/m^3
density of air
Heat
Acceleration due to gravity on the earth
density of aluminum
6. Net force=0 net torque=0
Equilibrium
Buoyant force
Galileo
Time for an object thrown to reach maximum height
7. Current x voltage energy/time (joules per second)
Emissive
Power (watts)
Acceleration
Quantum mechanics
8. If the CG is above the edge - the object will not fall
Torque
amplitude
Change in internal energy
Condition for stability
9. The first to do experimental studies of the laws of motion and was Imprisoned by Pope Urban VIII in 1633 for advocating the Copernican theory - also know as the heliocentric theory - that the earth was a planet revolving around the sun.
Mechanics
pressure does what when depth is increased
variation of pressure with depth
Galileo
10. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
Velocity required for an object to reach height h
infrasound
Acceleration due to gravity on the earth
11. It increases
entropy
pressure does what when depth is increased
Radiation
viscosity
12. If energy is transferred and the internal energy of system B decreases by some amount then the internal energy of system A must incrase by the same amount.
Second law of thermodynamics
First Law of thermodynamics
Torque
Radiation
13. Heat into system - work done by system
measure of density
Newton
Change in internal energy
Engine efficiency
14. Net force=0 net torque=0
Equilibrium
Resistance
Velocity required for an object to reach height h
Acceleration
15. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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16. T(C) +273
Condition for stability
Convert Celsius to Kelven
Wave speed=
the pressure of liquids _____ when it goes faster
17. 100 -000 n/m^2
Momentum
density of aluminum
atmospheric pressure (atm)
pressure at depth h
18. Maximum displacement from equilibrium
amplitude
volume fluid flow rate
Thermal radiation
azX
19. Pascal (Pa) or pounds per square inch (psi)
measurement of pressure
the pressure of liquids _____ when it goes faster
Conduction
Centripedal acceleration=
20. Fbottom=Ftop+mg where mg is the weight of the volume
Photon energy
static fluid formula
Thermodynamics
Newton
21. Time required to complete one cycle
pressure does what when depth is increased
Stable
ultrasound
Period
22. The level stays the same
Conservation of energy
pressure does what when depth is increased
when ice in water melts what happens?
bernoulli's equation
23.
Engine efficiency cannot be 100%
period p of a mass m oscillating on a horizontal spring of force constant k
Energy of motion (kinetic energy)
order of states of matter stronger to lesser forces between atoms
24. Hf
Acceleration
Thermal conductivity
Photon energy
Centripedal acceleration=
25. Equals total momentum after collision
Total momentum before collision
entropy
Heat
Change in internal energy
26. Pascal (Pa) or pounds per square inch (psi)
volume fluid flow rate
Einstein
bernoulli's equation
measurement of pressure
27. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Galileo
c=3x10^8 m/s
Thermodynamics
Newton
28. Force per unit area
Fluid force
Mechanics
Pressure=
Thermal radiation
29. A disturbance that moves through something
Internal energy
velocity through a medium
wave
measurement of pressure
30. The efficiency with which an object emits thermal radiation. Is a number between 0 and 1. A good emitter has an e close to 1.
Acceleration due to gravity on the earth
the pressure of liquids _____ when it goes faster
azX
Emissive
31. Number density x temperature
pressure depends on
when ice in water melts what happens?
Resistance
pressure at depth h
32. Force x lever arm
pressure depends on
Torque
density of air
incoming and outgoing flow rate formula
33. An object that is thrown or struck or shot and then travels under the influence of gravity
when ice in water melts what happens?
Projectile
wave
pressure depends on
34. The total disorder of an object
Aristotle
entropy
Fluid force
Net force?0 net torque=0
35. The total disorder of an object
entropy
Einstein
Stable
Convert Fahrenheit to Celsius
36. Heat is carried from place to place by the bulk movement of either liquids or gasses
Convection
Net force=0 net torque?0
density of lead
Einstein
37. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Acceleration
Einstein
law of conservation of energy
Conservation of energy
38. 25%
Equilibrium
Velocity=
Net force=0 net torque?0
The US uses how much of the total world energy consumption?
39. Solids - liquids - gases
frequency of light
Thermal radiation
order of states of matter stronger to lesser forces between atoms
wavelength
40. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
The US uses how much of the total world energy consumption?
entropy
Kepler
Frequency
41. 2 -700 kg/m^3
bernoulli's equation
Quantum mechanics
restoring force
density of aluminum
42. Because nothing stops it
Wave speed=
Why does something move?
incoming and outgoing flow rate formula
Aristotle
43. Velocity squared / radius
The US uses how much of the total world energy consumption?
Mechanics
Centripedal acceleration=
incoming and outgoing flow rate formula
44. A tendency for liquids to resist flowing.
viscosity
volume fluid flow rate
Fluid force
Convection
45. Why things move
frequency of light
Mechanics
variation of pressure with depth
Why does something move?
46. P + density x g h
pressure at depth h
density of water
wave
Why does something move?
47. Z+n
Weight
azX
Aristotle
frequency of light
48.
Distance traveled
when ice in water melts what happens?
Acceleration due to gravity on the earth
Engine efficiency
49. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Second law of thermodynamics
Mechanics
Equilibrium
Fluid force
50. Force x lever arm
Second law of thermodynamics
Distance traveled
pressure depends on
Torque
Can you answer 50 questions in 15 minutes?
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