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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. Maximum displacement from equilibrium
Total momentum before collision
Mechanics
Net force?0 net torque=0
amplitude
2. A tendency for liquids to resist flowing.
Change in internal energy
viscosity
volume fluid flow rate formula
Condition for stability
3. Mass x gravity
Newton's Second Law
static fluid formula
volume fluid flow rate
Weight
4. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
incoming and outgoing flow rate formula
pressure does what when depth is increased
The US uses how much of the total world energy consumption?
5. 5/9 [T(F)-32]
variation of pressure with depth
Projectile
Convert Fahrenheit to Celsius
pressure at depth h
6. Kg/m^3
Why does something move?
definition of Bernoulii's equation
Net force
measure of density
7. An object that is thrown or struck or shot and then travels under the influence of gravity
Einstein
Projectile
Total momentum before collision
density of lead
8. T(C) +273
Convert Celsius to Kelven
Velocity required for an object to reach height h
density of aluminum
Stable structures
9. Time= the square root of 2 x height / acceleration due to gravity
Engine efficiency
density of air
Time for an object thrown to reach maximum height
incoming and outgoing flow rate formula
10. Heat Q= mass of sample x specific heat x temp change
volume fluid flow rate formula
Net force?0 net torque=0
Pressure=
Heat capacity equation
11.
Energy of motion (kinetic energy)
velocity through a medium
pressure depends on
Convert Celsius to Fahrenheit
12. 2p x square root L/g
Center of gravity (CG)
period of a pendulum T of length L
Heat
Net force
13. 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.
amplitude
Pressure=
Torque
Emissive
14. The heat needed to raise the temperature of 1 pound of water by 1 degree F
1 BTU
Heat capacity equation
incoming and outgoing flow rate formula
Heat
15. As the speed of a moving fluid increases - the pressure within the fluid decreases
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16. V x A= constant
Thermodynamics
continuity
when ice in water melts what happens?
First Law of thermodynamics
17. Force per unit area
wavelength
Frequency
Pressure=
Brahe
18. 1.25 kg/m^3
Galileo
density of air
wavelength
Engine efficiency cannot be 100%
19. The total disorder of an object
Center of gravity (CG)
entropy
the pressure of liquids _____ when it goes faster
Newton's Second Law
20. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
pressure at depth h
Convert Celsius to Kelven
Kepler
pressure at depth h
21. Pascal (Pa) or pounds per square inch (psi)
measurement of pressure
Kepler
Voltage
Centripedal acceleration=
22. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
velocity through a medium
Newton
variation of pressure with depth
amplitude
23. The sum of the energy of all the molecules in the system
volume fluid flow rate
Internal energy
static fluid formula
Einstein
24.
Distance traveled
Torque
Center of gravity (CG)
wave
25. 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.
Buoyant force
First Law of thermodynamics
the pressure of liquids _____ when it goes faster
mechanical wave
26. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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27. Length of a wave
Thermodynamics
Second law of thermodynamics
wavelength
Momentum
28. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
mass flow rate formula
Thermal conductivity
c=3x10^8 m/s
Kepler
29. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Buoyant force
Wave speed=
Radiation
c=3x10^8 m/s
30. Solids - liquids - gases
order of states of matter stronger to lesser forces between atoms
Torque
incoming and outgoing flow rate formula
Wave speed=
31. P + density x g h
Buoyant force
pressure at depth h
Wave speed=
Galileo
32. T^4
Distance traveled
Flow through a pipe
Center of gravity (CG)
Thermal radiation
33. The heat transfer by electromagnetic waves - thermal light waves
density of water
Aristotle
Radiation
pressure does what when depth is increased
34. Decreases
Speed of light
the pressure of liquids _____ when it goes faster
Fluid force
Acceleration
35. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Mechanics
measure of density
volume fluid flow rate formula
Newton's Second Law
36. Rod with forces applied at opposite ends in the same direction
pressure does what when depth is increased
Net force?0 net torque=0
Wave speed=
restoring force
37. 1 / period (time)
Frequency
Period
Heat
Total momentum before collision
38. Are wider at the base (which lowers their center of gravity)
infrasound
Change in internal energy
Stable structures
Convection
39. Mass x specific heat x temperature change
Center of gravity (CG)
density of air
Why does something move?
Heat
40. Sounds below 30 Hz
infrasound
mechanical wave
when ice in water melts what happens?
Heat capacity equation
41. Voltage / current
Torque
Resistance
azX
density of aluminum
42. Fbottom-Ftop=mg=(density x vol) x g
incoming and outgoing flow rate formula
viscosity
Voltage
variation of pressure with depth
43. 5/9 [T(F)-32]
Internal energy
Convert Fahrenheit to Celsius
Emissive
Centripedal acceleration=
44. Not easy to knock over
Buoyant force
density of lead
Stable
Time for an object thrown to reach maximum height
45. A disturbance that moves through something
the pressure of liquids _____ when it goes faster
wave
Voltage
Aristotle
46. It increases
static fluid formula
Convert Celsius to Kelven
Condition for stability
pressure does what when depth is increased
47. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
density of lead
Convert Fahrenheit to Celsius
Internal energy
Einstein
48. Heat is carried from place to place by the bulk movement of either liquids or gasses
amplitude
Convection
Heat
Speed of light
49. You cant get as much out as you put in
Fluid force
Power (watts)
Conduction
Engine efficiency cannot be 100%
50. The center of an object
Center of gravity (CG)
Weight
static fluid formula
First Law of thermodynamics