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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. Sounds below 30 Hz
infrasound
wave
Mechanics
Fluid force
2. A disturbance that propagates through a medium
Thermal conductivity
density of water
Engine efficiency cannot be 100%
mechanical wave
3. C/n
Aristotle
Net force?0 net torque=0
velocity through a medium
period of a pendulum T of length L
4. Mass x gravity
Weight
Momentum
Center of gravity (CG)
Brahe
5. The level stays the same
Why does something move?
Total momentum before collision
Rotational inertia (moment of inertia)
when ice in water melts what happens?
6. A disturbance that propagates through a medium
density of aluminum
mechanical wave
Velocity required for an object to reach height h
density of lead
7. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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8. 1.25 kg/m^3
volume fluid flow rate formula
density of air
Net force?0 net torque=0
restoring force
9. P x u x A
mass flow rate formula
c=3x10^8 m/s
Heat capacity (specific heat)
Conservation of energy
10. Net force=0 net torque=0
Why does something move?
volume fluid flow rate formula
Equilibrium
wavelength
11. 10 m/s^2
Wavelength
Change in internal energy
incoming and outgoing flow rate formula
Acceleration due to gravity on the earth
12. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
wavelength
density of aluminum
Center of gravity (CG)
13. Length of a wave
wavelength
1 BTU
Frequency
Engine efficiency cannot be 100%
14. 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.
volume fluid flow rate formula
First Law of thermodynamics
Change in internal energy
continuity
15. The level stays the same
Thermal conductivity
when ice in water melts what happens?
Time for an object thrown to reach maximum height
Speed of light
16. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
c=3x10^8 m/s
Flow through a pipe
pressure depends on
Kepler
17. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Engine efficiency
bernoulli's equation
Total momentum before collision
1 BTU
18. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
the pressure of liquids _____ when it goes faster
infrasound
Projectile
volume fluid flow rate formula
19. The sum of the energy of all the molecules in the system
Net force
Convection
amplitude
Internal energy
20. Because nothing stops it
Energy of motion (kinetic energy)
Wavelength
Why does something move?
Distance traveled
21. An object that is thrown or struck or shot and then travels under the influence of gravity
Net force?0 net torque=0
Projectile
velocity through a medium
Kepler
22. 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.
Photon energy
amplitude
Convert Fahrenheit to Celsius
Emissive
23. Time required to complete one cycle
Momentum
Period
wavelength
First Law of thermodynamics
24. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
the pressure of liquids _____ when it goes faster
Net force?0 net torque=0
Weight
Heat capacity (specific heat)
25. The force that brings a system back to equilibrium
restoring force
the pressure of liquids _____ when it goes faster
The US uses how much of the total world energy consumption?
First Law of thermodynamics
26. 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).
amplitude
pressure at depth h
atmospheric pressure (atm)
Physics
27. Time required to complete one cycle
Second law of thermodynamics
Distance traveled
Heat capacity equation
Period
28. Change in velocity / time
Acceleration
Projectile
Equilibrium
period p of a mass m oscillating on a horizontal spring of force constant k
29. P x u x A
Voltage
density of water
Heat
mass flow rate formula
30. Force per unit area
Period
Rotational inertia (moment of inertia)
Pressure=
pressure does what when depth is increased
31. How much torque it takes to get an object rotating
Stable structures
Projectile
Rotational inertia (moment of inertia)
Acceleration
32. Wavelength x frequency
measurement of pressure
Conduction
Net force
Wave speed=
33. As the speed of a moving fluid increases - the pressure within the fluid decreases
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34. The heat needed to raise the temperature of 1 pound of water by 1 degree F
1 BTU
Conservation of energy
Conduction
Time for an object thrown to reach maximum height
35. It increases
Heat capacity equation
Thermal conductivity
pressure does what when depth is increased
Heat
36. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
frequency of light
Second law of thermodynamics
Why does something move?
Condition for stability
37. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Brahe
Thermal radiation
Weight
Conservation of energy
38. The force that brings a system back to equilibrium
pressure does what when depth is increased
definition of Bernoulii's equation
order of states of matter stronger to lesser forces between atoms
restoring force
39. Fbottom-Ftop=mg=(density x vol) x g
Heat
variation of pressure with depth
density of air
Heat capacity equation
40. 9/5T(C)+32
Convert Celsius to Fahrenheit
azX
Thermal radiation
Equilibrium
41. Pressure x area
Physics
Wavelength
definition of Bernoulii's equation
Fluid force
42. Number density x temperature
Distance traveled
Heat capacity equation
density of aluminum
pressure depends on
43. A disturbance that moves through something
Net force=0 net torque?0
Torque
First Law of thermodynamics
wave
44. Not easy to knock over
Stable
Why does something move?
continuity
Time for an object thrown to reach maximum height
45. ?
Rotational inertia (moment of inertia)
ultrasound
c=3x10^8 m/s
continuity
46. Z+n
Thermal radiation
pressure at depth h
azX
Physics
47. Heat into system - work done by system
Convert Celsius to Fahrenheit
Change in internal energy
Convert Fahrenheit to Celsius
Velocity=
48. Z+n
Velocity=
azX
density of lead
infrasound
49. P + density x g h
density of aluminum
the pressure of liquids _____ when it goes faster
pressure at depth h
wavelength
50. V x A= constant
mechanical wave
Convert Celsius to Kelven
continuity
Net force=0 net torque?0