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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. 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.
First Law of thermodynamics
Convert Fahrenheit to Celsius
density of water
Net force=0 net torque?0
2. If the CG is above the edge - the object will not fall
entropy
frequency of light
Condition for stability
pressure depends on
3. Maximum displacement from equilibrium
the pressure of liquids _____ when it goes faster
bernoulli's equation
amplitude
Kepler
4. 11 -000 kg/m^3
pressure depends on
density of lead
Distance traveled
restoring force
5. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Pressure=
Voltage
Buoyant force
Heat capacity (specific heat)
6. An object that is thrown or struck or shot and then travels under the influence of gravity
Projectile
Aristotle
period p of a mass m oscillating on a horizontal spring of force constant k
bernoulli's equation
7. You can't get more work out than the energy you put in
Conservation of energy
Torque
Projectile
Voltage
8. Voltage / current
velocity through a medium
definition of Bernoulii's equation
Resistance
Weight
9. Pressure x area
Total momentum before collision
Fluid force
definition of Bernoulii's equation
Net force=0 net torque?0
10. F=mass x acceleration
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11. 100 -000 n/m^2
pressure depends on
infrasound
atmospheric pressure (atm)
period of a pendulum T of length L
12.
definition of Bernoulii's equation
Equilibrium
Distance traveled
Internal energy
13. Length of a wave
Time for an object thrown to reach maximum height
wavelength
Period
Physics
14. 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.
azX
Emissive
Speed of light
c=3x10^8 m/s
15. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Engine efficiency
Einstein
wave
volume fluid flow rate formula
16. The sum of the energy of all the molecules in the system
Convert Celsius to Fahrenheit
Internal energy
Conservation of energy
Total momentum before collision
17. An object that is thrown or struck or shot and then travels under the influence of gravity
azX
Projectile
Speed of light
volume fluid flow rate
18. Heat Q= mass of sample x specific heat x temp change
Net force
Why does something move?
Heat capacity equation
Period
19. Time required to complete one cycle
Period
entropy
Thermal radiation
Newton
20. 11 -000 kg/m^3
density of lead
period p of a mass m oscillating on a horizontal spring of force constant k
Pressure=
bernoulli's equation
21. P + density x g h
Engine efficiency cannot be 100%
measurement of pressure
Radiation
pressure at depth h
22. As the speed of a moving fluid increases - the pressure within the fluid decreases
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23. Change in velocity / time
Mechanics
Acceleration
pressure at depth h
Heat capacity equation
24. T^4
Wavelength
Period
Thermal radiation
Heat capacity equation
25. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
volume fluid flow rate
mass flow rate formula
wavelength
period p of a mass m oscillating on a horizontal spring of force constant k
26. The study of heat and its transformation into mechanical energy
velocity through a medium
entropy
Thermodynamics
density of lead
27. Distance traveled / time
Kepler
Net force?0 net torque=0
Net force=0 net torque?0
Velocity=
28. You cant get as much out as you put in
restoring force
Engine efficiency cannot be 100%
Radiation
order of states of matter stronger to lesser forces between atoms
29. The change in internal energy= the heat absorbed- the work done
density of water
law of conservation of energy
bernoulli's equation
Rotational inertia (moment of inertia)
30. Decreases
Heat capacity equation
incoming and outgoing flow rate formula
the pressure of liquids _____ when it goes faster
Total momentum before collision
31. The force that brings a system back to equilibrium
velocity through a medium
variation of pressure with depth
wave
restoring force
32. Pascal (Pa) or pounds per square inch (psi)
measurement of pressure
mass flow rate formula
Quantum mechanics
viscosity
33. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
Engine efficiency cannot be 100%
mass flow rate formula
Speed of light
34. Z+n
The US uses how much of the total world energy consumption?
volume fluid flow rate
azX
the pressure of liquids _____ when it goes faster
35. T^4
Quantum mechanics
density of aluminum
Thermal radiation
when ice in water melts what happens?
36. Mass x gravity
wave
Weight
period p of a mass m oscillating on a horizontal spring of force constant k
viscosity
37. The force that brings a system back to equilibrium
pressure at depth h
Aristotle
restoring force
Thermal conductivity
38. Force x lever arm
Torque
Buoyant force
Heat capacity equation
Conduction
39. 25%
Buoyant force
The US uses how much of the total world energy consumption?
incoming and outgoing flow rate formula
Total momentum before collision
40. The combination of force and point of application
Net force=0 net torque?0
Period
mass flow rate formula
Torque
41. Work done / heat in
Torque
Energy of motion (kinetic energy)
Aristotle
Engine efficiency
42. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
pressure at depth h
Torque
Newton
Wave speed=
43. Fbottom-Ftop=mg=(density x vol) x g
variation of pressure with depth
Buoyant force
amplitude
Internal energy
44. Time= the square root of 2 x height / acceleration due to gravity
Convert Celsius to Fahrenheit
Time for an object thrown to reach maximum height
Convection
static fluid formula
45. Not easy to knock over
volume fluid flow rate
Second law of thermodynamics
Stable
Present velocity
46. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Radiation
Torque
1 BTU
Heat capacity equation
47. Time required to complete one cycle
Einstein
wave
Internal energy
Period
48. A tendency for liquids to resist flowing.
viscosity
Thermodynamics
Wave speed=
wavelength
49. Wavelength x frequency
Condition for stability
continuity
Pressure=
Wave speed=
50. Number density x temperature
pressure depends on
Why does something move?
the pressure of liquids _____ when it goes faster
Stable