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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. The study of how objects behave (from the very tiny to the very big - and from the beginning of the Universe to its ultimate fate).
density of water
restoring force
Physics
viscosity
2. P x u x A
continuity
mass flow rate formula
Convection
definition of Bernoulii's equation
3. The center of an object
Second law of thermodynamics
Center of gravity (CG)
Why does something move?
measure of density
4. Fbottom-Ftop=mg=(density x vol) x g
mechanical wave
amplitude
measurement of pressure
variation of pressure with depth
5.
Engine efficiency
Centripedal acceleration=
Energy of motion (kinetic energy)
volume fluid flow rate formula
6. Length of a wave
Heat
volume fluid flow rate
pressure does what when depth is increased
wavelength
7. Decreases
Centripedal acceleration=
the pressure of liquids _____ when it goes faster
Speed of light
Heat
8. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
Thermodynamics
Pressure=
volume fluid flow rate
density of aluminum
9. T(C) +273
measurement of pressure
Internal energy
wavelength
Convert Celsius to Kelven
10. C / f
entropy
frequency of light
Wavelength
pressure depends on
11. As the speed of a moving fluid increases - the pressure within the fluid decreases
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12. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
volume fluid flow rate
Why does something move?
Internal energy
13. Fbottom-Ftop=mg=(density x vol) x g
density of lead
variation of pressure with depth
incoming and outgoing flow rate formula
Heat
14. The study of heat and its transformation into mechanical energy
Stable structures
Change in internal energy
Total momentum before collision
Thermodynamics
15. 18600 miles/sec
Convert Celsius to Kelven
Torque
Speed of light
Rotational inertia (moment of inertia)
16. 1.25 kg/m^3
density of air
Emissive
Speed of light
Buoyant force
17. 1.25 kg/m^3
Brahe
Thermal conductivity
Convection
density of air
18. Are wider at the base (which lowers their center of gravity)
Speed of light
density of aluminum
Stable structures
Time for an object thrown to reach maximum height
19. The center of an object
Emissive
Thermal conductivity
Center of gravity (CG)
Projectile
20. A disturbance that propagates through a medium
Aristotle
Heat
mechanical wave
density of water
21. 2 -700 kg/m^3
Thermal conductivity
Change in internal energy
density of aluminum
wavelength
22. The sum of the energy of all the molecules in the system
First Law of thermodynamics
azX
Acceleration due to gravity on the earth
Internal energy
23. Are wider at the base (which lowers their center of gravity)
Stable structures
restoring force
Kepler
The US uses how much of the total world energy consumption?
24. Hf
pressure does what when depth is increased
continuity
Acceleration
Photon energy
25. Net force=0 net torque=0
Engine efficiency
Speed of light
Kepler
Equilibrium
26. Distance traveled / time
Heat capacity equation
Velocity=
Heat capacity equation
definition of Bernoulii's equation
27. The force that brings a system back to equilibrium
Conduction
Rotational inertia (moment of inertia)
period p of a mass m oscillating on a horizontal spring of force constant k
restoring force
28. Because nothing stops it
Why does something move?
Wave speed=
Power (watts)
azX
29. Number density x temperature
pressure depends on
Power (watts)
atmospheric pressure (atm)
Quantum mechanics
30. Pressure x area
Fluid force
pressure at depth h
period of a pendulum T of length L
order of states of matter stronger to lesser forces between atoms
31. As the speed of a moving fluid increases - the pressure within the fluid decreases
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32. V x A= constant
frequency of light
incoming and outgoing flow rate formula
law of conservation of energy
continuity
33. Heat into system - work done by system
wave
Momentum
Change in internal energy
Center of gravity (CG)
34. T^4
Thermal radiation
Heat capacity (specific heat)
Photon energy
Weight
35. T(C) +273
Convert Celsius to Kelven
Wavelength
Net force?0 net torque=0
Second law of thermodynamics
36. How much torque it takes to get an object rotating
Kepler
continuity
Energy of motion (kinetic energy)
Rotational inertia (moment of inertia)
37. Why things move
c=3x10^8 m/s
Second law of thermodynamics
Mechanics
law of conservation of energy
38. Force per unit area
pressure does what when depth is increased
Internal energy
Present velocity
Pressure=
39. Velocity squared / radius
Convection
Heat
Acceleration due to gravity on the earth
Centripedal acceleration=
40. P + density x g h
Engine efficiency cannot be 100%
Mechanics
Velocity required for an object to reach height h
pressure at depth h
41. Weight of displaced water=volume of displaced water in liters x 10 n / liter
mechanical wave
Internal energy
Buoyant force
Power (watts)
42. Because nothing stops it
static fluid formula
Voltage
mass flow rate formula
Why does something move?
43. Heat into system - work done by system
Flow through a pipe
Net force=0 net torque?0
Change in internal energy
mechanical wave
44. P(P2-P1)D^4/128Ln n=fluid's viscosity
density of lead
Rotational inertia (moment of inertia)
Flow through a pipe
Center of gravity (CG)
45. 25%
Present velocity
The US uses how much of the total world energy consumption?
Velocity=
the pressure of liquids _____ when it goes faster
46. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Photon energy
density of lead
volume fluid flow rate formula
Why does something move?
47. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Newton
Voltage
Engine efficiency
Velocity=
48. Sounds above 20 -000 Hz
order of states of matter stronger to lesser forces between atoms
Momentum
ultrasound
Conservation of energy
49. Force x lever arm
azX
Torque
Net force
Frequency
50. Speed of light / wavelength
pressure does what when depth is increased
frequency of light
the pressure of liquids _____ when it goes faster
1 BTU