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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 total disorder of an object
Buoyant force
Acceleration
Conduction
entropy
2. Distance traveled / time
Velocity=
amplitude
Conduction
mass flow rate formula
3. 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.
wavelength
Centripedal acceleration=
Emissive
density of air
4. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Einstein
Distance traveled
Why does something move?
Center of gravity (CG)
5. C / f
Change in internal energy
Fluid force
volume fluid flow rate formula
Wavelength
6. It increases
pressure does what when depth is increased
Convert Fahrenheit to Celsius
pressure depends on
pressure at depth h
7. 5/9 [T(F)-32]
Torque
velocity through a medium
Convert Fahrenheit to Celsius
Momentum
8. T^4
ultrasound
Thermal radiation
Voltage
Aristotle
9. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Engine efficiency
Acceleration
Internal energy
Heat capacity (specific heat)
10. Force x lever arm
Convection
Acceleration due to gravity on the earth
Galileo
Torque
11. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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12.
Second law of thermodynamics
c=3x10^8 m/s
Wavelength
Energy of motion (kinetic energy)
13. Pascal (Pa) or pounds per square inch (psi)
pressure does what when depth is increased
measurement of pressure
continuity
Buoyant force
14. 100 -000 n/m^2
atmospheric pressure (atm)
Time for an object thrown to reach maximum height
Kepler
mass flow rate formula
15. Rod with forces applied at opposite ends in the same direction
Convection
Net force?0 net torque=0
Rotational inertia (moment of inertia)
mechanical wave
16. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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17. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Heat
Wave speed=
Quantum mechanics
Newton
18. The sum of the energy of all the molecules in the system
Internal energy
the pressure of liquids _____ when it goes faster
pressure at depth h
First Law of thermodynamics
19. Kg/m^3
infrasound
Mechanics
Speed of light
measure of density
20. The force that brings a system back to equilibrium
Convection
restoring force
Stable structures
Why does something move?
21. 1 -000 kg/m^3
density of water
Pressure=
Second law of thermodynamics
Thermal conductivity
22. P + density x g h
infrasound
volume fluid flow rate formula
pressure at depth h
viscosity
23. 100 -000 n/m^2
Fluid force
Flow through a pipe
atmospheric pressure (atm)
Torque
24. 1.25 kg/m^3
density of air
Flow through a pipe
Brahe
wavelength
25. 1 / period (time)
infrasound
frequency of light
density of lead
Frequency
26. Force x lever arm
Period
Rotational inertia (moment of inertia)
Torque
volume fluid flow rate
27. Time required to complete one cycle
azX
Conduction
Kepler
Period
28. 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
Acceleration due to gravity on the earth
Convert Celsius to Kelven
Newton
29. A tendency for liquids to resist flowing.
viscosity
Speed of light
density of aluminum
Photon energy
30. Heat into system - work done by system
Change in internal energy
Period
Heat
Brahe
31. The total force (positive and negative) acting upon an object
density of lead
Engine efficiency
Convert Celsius to Kelven
Net force
32. The study of heat and its transformation into mechanical energy
Thermodynamics
Resistance
Period
Brahe
33. The study of heat and its transformation into mechanical energy
variation of pressure with depth
measurement of pressure
atmospheric pressure (atm)
Thermodynamics
34. Heat Q= mass of sample x specific heat x temp change
Heat capacity equation
Pressure=
Total momentum before collision
First Law of thermodynamics
35. 18600 miles/sec
Second law of thermodynamics
density of lead
Speed of light
Centripedal acceleration=
36. P(P2-P1)D^4/128Ln n=fluid's viscosity
Acceleration due to gravity on the earth
Flow through a pipe
Fluid force
atmospheric pressure (atm)
37. P + density x g h
pressure at depth h
Convection
Net force?0 net torque=0
Heat capacity equation
38. Mass x velocity
Momentum
Acceleration
Physics
incoming and outgoing flow rate formula
39. Rod with forces applied at opposite ends in the same direction
Physics
Net force?0 net torque=0
Kepler
volume fluid flow rate
40. Current x resistance
Voltage
measurement of pressure
Condition for stability
pressure does what when depth is increased
41. The effectiveness of a material in conducting heat
order of states of matter stronger to lesser forces between atoms
Thermal conductivity
Rotational inertia (moment of inertia)
Equilibrium
42. Decreases
the pressure of liquids _____ when it goes faster
continuity
Newton
Equilibrium
43. It increases
pressure does what when depth is increased
Condition for stability
Flow through a pipe
Velocity required for an object to reach height h
44. Because nothing stops it
Why does something move?
amplitude
Pressure=
mass flow rate formula
45. Voltage / current
Mechanics
Pressure=
Thermodynamics
Resistance
46. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Torque
mass flow rate formula
Flow through a pipe
1 BTU
47. Not easy to knock over
the pressure of liquids _____ when it goes faster
Stable
Galileo
Net force?0 net torque=0
48. Because nothing stops it
First Law of thermodynamics
Heat capacity equation
Why does something move?
Momentum
49. As the speed of a moving fluid increases - the pressure within the fluid decreases
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50. The change in internal energy= the heat absorbed- the work done
Engine efficiency cannot be 100%
Torque
variation of pressure with depth
law of conservation of energy