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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. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
velocity through a medium
Newton
volume fluid flow rate formula
Flow through a pipe
2. Initial velocity = acceleration x time
volume fluid flow rate formula
restoring force
Present velocity
ultrasound
3. Force per unit area
azX
Pressure=
atmospheric pressure (atm)
Engine efficiency cannot be 100%
4. Net force=0 net torque=0
pressure does what when depth is increased
Equilibrium
1 BTU
Radiation
5. Believed that the natural state of objects was to be at rest
Aristotle
Period
pressure at depth h
Convert Celsius to Kelven
6. 5/9 [T(F)-32]
Thermal radiation
Convert Fahrenheit to Celsius
Condition for stability
law of conservation of energy
7. V x A= constant
continuity
Momentum
variation of pressure with depth
Stable
8. T^4
infrasound
Thermal radiation
period of a pendulum T of length L
ultrasound
9. Z+n
Thermal radiation
Time for an object thrown to reach maximum height
Net force=0 net torque?0
azX
10. P x u x A
Buoyant force
mass flow rate formula
density of air
Pressure=
11. Number density x temperature
Energy of motion (kinetic energy)
the pressure of liquids _____ when it goes faster
pressure depends on
bernoulli's equation
12.
Quantum mechanics
Galileo
Distance traveled
Photon energy
13. The center of an object
Present velocity
Engine efficiency
Center of gravity (CG)
Condition for stability
14. 1 -000 kg/m^3
Mechanics
Thermal conductivity
density of water
Equilibrium
15. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Thermodynamics
static fluid formula
1 BTU
Heat capacity equation
16. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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17. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
volume fluid flow rate formula
Stable
Heat capacity (specific heat)
Brahe
18. Not easy to knock over
Speed of light
Stable
Weight
amplitude
19. Fbottom-Ftop=mg=(density x vol) x g
Power (watts)
Velocity required for an object to reach height h
Engine efficiency
variation of pressure with depth
20. Change in velocity / time
Convert Celsius to Fahrenheit
Acceleration
Why does something move?
Mechanics
21. 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.
Flow through a pipe
1 BTU
measure of density
Galileo
22. You cant get as much out as you put in
Velocity=
Engine efficiency cannot be 100%
Why does something move?
Heat
23. ?
Velocity=
order of states of matter stronger to lesser forces between atoms
c=3x10^8 m/s
Thermal radiation
24. An object that is thrown or struck or shot and then travels under the influence of gravity
Engine efficiency cannot be 100%
Momentum
Projectile
Second law of thermodynamics
25. Mass x specific heat x temperature change
Torque
when ice in water melts what happens?
Heat capacity equation
Heat
26. The heat needed to raise the temperature of 1 pound of water by 1 degree F
measurement of pressure
Engine efficiency
1 BTU
density of aluminum
27. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
when ice in water melts what happens?
Acceleration
Velocity required for an object to reach height h
volume fluid flow rate
28. Mass x gravity
Convert Fahrenheit to Celsius
Weight
Heat capacity equation
period p of a mass m oscillating on a horizontal spring of force constant k
29. A disturbance that propagates through a medium
restoring force
pressure at depth h
Wavelength
mechanical wave
30. Number density x temperature
density of air
Conservation of energy
Engine efficiency
pressure depends on
31. The heat transfer by electromagnetic waves - thermal light waves
Heat
Heat capacity equation
Radiation
ultrasound
32. Voltage / current
Resistance
Conservation of energy
Aristotle
Fluid force
33. Because nothing stops it
order of states of matter stronger to lesser forces between atoms
Why does something move?
Engine efficiency
mechanical wave
34. P(P2-P1)D^4/128Ln n=fluid's viscosity
Conservation of energy
Acceleration
Flow through a pipe
Heat capacity equation
35. Sounds below 30 Hz
infrasound
wavelength
Center of gravity (CG)
Newton
36. Time= the square root of 2 x height / acceleration due to gravity
Thermodynamics
Time for an object thrown to reach maximum height
Wave speed=
Aristotle
37. Heat is transferred directly through a material with no bulk movement of material
Physics
Distance traveled
Conduction
Time for an object thrown to reach maximum height
38. 25%
Second law of thermodynamics
The US uses how much of the total world energy consumption?
Einstein
Convert Celsius to Fahrenheit
39. 2p x square root L/g
Buoyant force
period of a pendulum T of length L
density of lead
Frequency
40. Initial velocity= the square root of 2gh
Rotational inertia (moment of inertia)
Velocity required for an object to reach height h
continuity
bernoulli's equation
41. C / f
Rotational inertia (moment of inertia)
Acceleration due to gravity on the earth
Wavelength
Thermal radiation
42. 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.
static fluid formula
First Law of thermodynamics
Fluid force
period of a pendulum T of length L
43. 2 -700 kg/m^3
law of conservation of energy
pressure at depth h
density of aluminum
mechanical wave
44. 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.
Buoyant force
Galileo
volume fluid flow rate
Weight
45. Fbottom=Ftop+mg where mg is the weight of the volume
Voltage
Engine efficiency cannot be 100%
Centripedal acceleration=
static fluid formula
46. F=mass x acceleration
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47. The total force (positive and negative) acting upon an object
Mechanics
measurement of pressure
mass flow rate formula
Net force
48. P + density x g h
pressure at depth h
density of lead
Net force
incoming and outgoing flow rate formula
49. The heat transfer by electromagnetic waves - thermal light waves
density of water
Weight
Radiation
Galileo
50. 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).
Physics
Wave speed=
First Law of thermodynamics
Emissive