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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 effectiveness of a material in conducting heat
Velocity=
Total momentum before collision
variation of pressure with depth
Thermal conductivity
2. Mass x gravity
Weight
Convert Celsius to Kelven
Total momentum before collision
Pressure=
3. 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
1 BTU
mechanical wave
Weight
4. 10 m/s^2
Torque
Acceleration due to gravity on the earth
definition of Bernoulii's equation
Stable structures
5. Because nothing stops it
Acceleration due to gravity on the earth
frequency of light
Why does something move?
Emissive
6. 1 -000 kg/m^3
Velocity required for an object to reach height h
density of water
density of lead
Net force?0 net torque=0
7. Rod with forces applied at opposite ends in opposite directions
Stable
Net force=0 net torque?0
Wavelength
c=3x10^8 m/s
8. Number density x temperature
Equilibrium
Galileo
1 BTU
pressure depends on
9. 1 / period (time)
First Law of thermodynamics
Power (watts)
Stable
Frequency
10. How much torque it takes to get an object rotating
Time for an object thrown to reach maximum height
Rotational inertia (moment of inertia)
Engine efficiency cannot be 100%
Stable
11. Voltage / current
Energy of motion (kinetic energy)
Newton
Resistance
density of air
12. 1 / period (time)
Frequency
Heat
1 BTU
when ice in water melts what happens?
13. T(C) +273
Radiation
velocity through a medium
Convert Celsius to Kelven
Radiation
14. Pressure x area
Fluid force
restoring force
Mechanics
entropy
15. The total disorder of an object
Pressure=
Time for an object thrown to reach maximum height
Photon energy
entropy
16. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Frequency
Weight
Brahe
pressure depends on
17. Z+n
Convection
variation of pressure with depth
azX
period of a pendulum T of length L
18. 10 m/s^2
Time for an object thrown to reach maximum height
pressure does what when depth is increased
Why does something move?
Acceleration due to gravity on the earth
19. You cant get as much out as you put in
Center of gravity (CG)
Heat capacity equation
Engine efficiency cannot be 100%
Buoyant force
20. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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21. Mass x velocity
restoring force
Engine efficiency
ultrasound
Momentum
22. The force that brings a system back to equilibrium
density of aluminum
restoring force
density of air
Torque
23. Heat Q= mass of sample x specific heat x temp change
mass flow rate formula
Newton
1 BTU
Heat capacity equation
24. ?
volume fluid flow rate
Change in internal energy
Photon energy
c=3x10^8 m/s
25. A disturbance that propagates through a medium
wavelength
amplitude
Quantum mechanics
mechanical wave
26. T=2p square root m/k frequency= square root k/m;/2p
Convection
period p of a mass m oscillating on a horizontal spring of force constant k
Galileo
measurement of pressure
27. Fbottom-Ftop=mg=(density x vol) x g
Stable structures
variation of pressure with depth
density of aluminum
Equilibrium
28. Sounds below 30 Hz
measure of density
infrasound
Kepler
amplitude
29. A disturbance that propagates through a medium
Heat
azX
mechanical wave
Heat
30. 9/5T(C)+32
pressure at depth h
velocity through a medium
Equilibrium
Convert Celsius to Fahrenheit
31. 25%
The US uses how much of the total world energy consumption?
continuity
period of a pendulum T of length L
Photon energy
32. New theory that explained behavior at the atomic level
Torque
Quantum mechanics
pressure depends on
atmospheric pressure (atm)
33. Not easy to knock over
Stable
Resistance
Conduction
Radiation
34. 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.
mass flow rate formula
Condition for stability
First Law of thermodynamics
Internal energy
35. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
order of states of matter stronger to lesser forces between atoms
pressure does what when depth is increased
Kepler
volume fluid flow rate formula
36. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
Mechanics
wave
Heat capacity (specific heat)
volume fluid flow rate
37. Hf
Convert Celsius to Kelven
Second law of thermodynamics
Photon energy
Energy of motion (kinetic energy)
38. Fbottom=Ftop+mg where mg is the weight of the volume
mechanical wave
Heat capacity (specific heat)
Wave speed=
static fluid formula
39. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Einstein
velocity through a medium
Time for an object thrown to reach maximum height
Net force
40.
Distance traveled
viscosity
Heat
continuity
41. Velocity squared / radius
mass flow rate formula
Centripedal acceleration=
Voltage
pressure does what when depth is increased
42. C / f
Flow through a pipe
Wavelength
Acceleration
when ice in water melts what happens?
43. Sounds above 20 -000 Hz
Time for an object thrown to reach maximum height
ultrasound
Brahe
measurement of pressure
44. T^4
volume fluid flow rate
Photon energy
Thermal radiation
Condition for stability
45. 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.
Speed of light
Stable
wavelength
Galileo
46. Time= the square root of 2 x height / acceleration due to gravity
velocity through a medium
wave
wave
Time for an object thrown to reach maximum height
47. A tendency for liquids to resist flowing.
when ice in water melts what happens?
viscosity
Convection
Heat
48. Time required to complete one cycle
Acceleration
Photon energy
measure of density
Period
49. Velocity squared / radius
Centripedal acceleration=
Net force=0 net torque?0
Power (watts)
pressure depends on
50. The level stays the same
Einstein
Aristotle
Frequency
when ice in water melts what happens?
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