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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 heat transfer by electromagnetic waves - thermal light waves
when ice in water melts what happens?
Change in internal energy
Radiation
Flow through a pipe
2. Speed of light / wavelength
Aristotle
Net force?0 net torque=0
frequency of light
Why does something move?
3. 2p x square root L/g
period of a pendulum T of length L
wavelength
Rotational inertia (moment of inertia)
Thermal conductivity
4. Heat is carried from place to place by the bulk movement of either liquids or gasses
Convection
Centripedal acceleration=
Time for an object thrown to reach maximum height
Heat
5. Heat is transferred directly through a material with no bulk movement of material
pressure depends on
Fluid force
Torque
Conduction
6. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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7. 10 m/s^2
Acceleration due to gravity on the earth
Weight
Internal energy
Energy of motion (kinetic energy)
8. The effectiveness of a material in conducting heat
Thermal conductivity
Why does something move?
Stable structures
Rotational inertia (moment of inertia)
9. Sounds below 30 Hz
mass flow rate formula
Radiation
Quantum mechanics
infrasound
10. Maximum displacement from equilibrium
incoming and outgoing flow rate formula
Convert Fahrenheit to Celsius
amplitude
mechanical wave
11. How much torque it takes to get an object rotating
Rotational inertia (moment of inertia)
azX
Heat
frequency of light
12. Time= the square root of 2 x height / acceleration due to gravity
viscosity
static fluid formula
Weight
Time for an object thrown to reach maximum height
13. Mass x velocity
Momentum
the pressure of liquids _____ when it goes faster
definition of Bernoulii's equation
Convection
14. Initial velocity = acceleration x time
Present velocity
pressure depends on
Acceleration
Total momentum before collision
15. The energy that flows from one system to another because of their temperature difference.
density of air
amplitude
Velocity required for an object to reach height h
Heat
16. The level stays the same
continuity
Energy of motion (kinetic energy)
when ice in water melts what happens?
Velocity=
17. The force that brings a system back to equilibrium
Stable
definition of Bernoulii's equation
restoring force
Convection
18. A disturbance that moves through something
density of lead
the pressure of liquids _____ when it goes faster
Galileo
wave
19. Change in velocity / time
Acceleration
Why does something move?
Engine efficiency
c=3x10^8 m/s
20. P + density x g h
pressure at depth h
density of aluminum
Present velocity
wavelength
21. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Torque
volume fluid flow rate formula
1 BTU
density of lead
22. 9/5T(C)+32
c=3x10^8 m/s
bernoulli's equation
Convert Celsius to Fahrenheit
period p of a mass m oscillating on a horizontal spring of force constant k
23. Fbottom=Ftop+mg where mg is the weight of the volume
period p of a mass m oscillating on a horizontal spring of force constant k
Present velocity
static fluid formula
Pressure=
24. Kg/m^3
Net force=0 net torque?0
period of a pendulum T of length L
Power (watts)
measure of density
25. Not easy to knock over
volume fluid flow rate formula
incoming and outgoing flow rate formula
Flow through a pipe
Stable
26. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Heat capacity (specific heat)
Centripedal acceleration=
Galileo
Acceleration
27.
Distance traveled
frequency of light
amplitude
Projectile
28. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Net force
mass flow rate formula
Brahe
Heat
29. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
1 BTU
Conservation of energy
volume fluid flow rate
Acceleration
30. Distance traveled / time
Torque
pressure depends on
Convert Celsius to Kelven
Velocity=
31. 11 -000 kg/m^3
density of lead
law of conservation of energy
Net force?0 net torque=0
Stable structures
32. Force x lever arm
azX
Wavelength
mass flow rate formula
Torque
33. A disturbance that propagates through a medium
mechanical wave
Second law of thermodynamics
First Law of thermodynamics
Weight
34. C / f
Wavelength
Period
Projectile
1 BTU
35. Current x resistance
amplitude
1 BTU
density of aluminum
Voltage
36. Why things move
Equilibrium
Mechanics
Total momentum before collision
Kepler
37. A tendency for liquids to resist flowing.
Momentum
Einstein
viscosity
Centripedal acceleration=
38. T=2p square root m/k frequency= square root k/m;/2p
period p of a mass m oscillating on a horizontal spring of force constant k
Velocity=
Conduction
Heat capacity equation
39. The heat transfer by electromagnetic waves - thermal light waves
Newton's Second Law
Radiation
Why does something move?
pressure depends on
40. P x u x A
Condition for stability
Newton
Acceleration due to gravity on the earth
mass flow rate formula
41. Voltage / current
Net force
Engine efficiency cannot be 100%
Resistance
static fluid formula
42. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
mass flow rate formula
Newton's Second Law
Engine efficiency
43. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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44. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
Acceleration
Heat capacity equation
definition of Bernoulii's equation
45. 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
restoring force
Emissive
Why does something move?
46. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Thermal radiation
Total momentum before collision
Second law of thermodynamics
Pressure=
47. 2 -700 kg/m^3
mechanical wave
density of aluminum
Heat capacity equation
Thermal conductivity
48. T^4
Time for an object thrown to reach maximum height
Velocity required for an object to reach height h
Speed of light
Thermal radiation
49. The study of heat and its transformation into mechanical energy
Emissive
Fluid force
Velocity required for an object to reach height h
Thermodynamics
50. Heat is carried from place to place by the bulk movement of either liquids or gasses
Time for an object thrown to reach maximum height
1 BTU
the pressure of liquids _____ when it goes faster
Convection