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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. Mass x velocity
Momentum
Newton's Second Law
Thermal radiation
Thermal radiation
2. A disturbance that propagates through a medium
mechanical wave
bernoulli's equation
density of lead
Distance traveled
3. The total force (positive and negative) acting upon an object
Distance traveled
Emissive
Net force
period p of a mass m oscillating on a horizontal spring of force constant k
4. 18600 miles/sec
Conservation of energy
azX
Velocity required for an object to reach height h
Speed of light
5. 1 / period (time)
period of a pendulum T of length L
The US uses how much of the total world energy consumption?
Frequency
Condition for stability
6. Sounds above 20 -000 Hz
Engine efficiency cannot be 100%
Conduction
ultrasound
Radiation
7. Rod with forces applied at opposite ends in the same direction
density of water
Net force
Momentum
Net force?0 net torque=0
8. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Net force?0 net torque=0
Brahe
Thermal conductivity
Acceleration due to gravity on the earth
9. Work done / heat in
incoming and outgoing flow rate formula
Engine efficiency
infrasound
density of air
10. Hf
volume fluid flow rate
Fluid force
Photon energy
Heat
11. T^4
continuity
Internal energy
measure of density
Thermal radiation
12. Time= the square root of 2 x height / acceleration due to gravity
Time for an object thrown to reach maximum height
entropy
Kepler
Heat
13. Not easy to knock over
Stable
The US uses how much of the total world energy consumption?
pressure does what when depth is increased
Net force
14. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Einstein
wave
when ice in water melts what happens?
Quantum mechanics
15. How much torque it takes to get an object rotating
Quantum mechanics
Rotational inertia (moment of inertia)
1 BTU
Radiation
16. Are wider at the base (which lowers their center of gravity)
Kepler
Stable structures
Thermal conductivity
Condition for stability
17. Why things move
Engine efficiency
ultrasound
Mechanics
atmospheric pressure (atm)
18. The effectiveness of a material in conducting heat
Total momentum before collision
Equilibrium
Thermal conductivity
density of lead
19. P x u x A
Period
Conservation of energy
Flow through a pipe
mass flow rate formula
20. T=2p square root m/k frequency= square root k/m;/2p
Convert Celsius to Kelven
Einstein
period p of a mass m oscillating on a horizontal spring of force constant k
variation of pressure with depth
21. T^4
Thermal radiation
Fluid force
Change in internal energy
Equilibrium
22. Current x voltage energy/time (joules per second)
when ice in water melts what happens?
Power (watts)
Wavelength
Projectile
23. The heat needed to raise the temperature of 1 pound of water by 1 degree F
1 BTU
measurement of pressure
wavelength
measure of density
24. 1 / period (time)
Frequency
Power (watts)
Stable
wave
25. 5/9 [T(F)-32]
Convert Fahrenheit to Celsius
Einstein
Pressure=
Velocity required for an object to reach height h
26. 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.
Newton
Physics
Heat capacity (specific heat)
First Law of thermodynamics
27. Wavelength x frequency
Condition for stability
Quantum mechanics
Voltage
Wave speed=
28. 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.
Internal energy
Acceleration
Emissive
Torque
29. V1 x A1=v2 x A2
frequency of light
incoming and outgoing flow rate formula
Acceleration due to gravity on the earth
velocity through a medium
30. Force x lever arm
volume fluid flow rate formula
Fluid force
Torque
Photon energy
31. V x A= constant
continuity
law of conservation of energy
Velocity required for an object to reach height h
Galileo
32. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Centripedal acceleration=
wave
Einstein
Brahe
33. 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).
pressure at depth h
Convert Celsius to Fahrenheit
Physics
entropy
34. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
volume fluid flow rate
Newton's Second Law
Engine efficiency cannot be 100%
pressure at depth h
35. As the speed of a moving fluid increases - the pressure within the fluid decreases
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36. The combination of force and point of application
Torque
Rotational inertia (moment of inertia)
Einstein
Resistance
37. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Brahe
volume fluid flow rate formula
Conduction
velocity through a medium
38. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
Second law of thermodynamics
Thermodynamics
Stable structures
volume fluid flow rate
39. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Voltage
Second law of thermodynamics
Weight
1 BTU
40. Decreases
the pressure of liquids _____ when it goes faster
azX
Conduction
Convection
41. Heat is transferred directly through a material with no bulk movement of material
density of lead
restoring force
Conduction
Quantum mechanics
42. The force that brings a system back to equilibrium
restoring force
Frequency
Aristotle
Heat
43. Change in velocity / time
Total momentum before collision
Newton's Second Law
Acceleration
when ice in water melts what happens?
44. A disturbance that propagates through a medium
Second law of thermodynamics
mechanical wave
Emissive
restoring force
45. Heat is transferred directly through a material with no bulk movement of material
Second law of thermodynamics
Conduction
Newton
Newton
46. Initial velocity = acceleration x time
Present velocity
pressure at depth h
Torque
pressure does what when depth is increased
47. Heat is carried from place to place by the bulk movement of either liquids or gasses
pressure does what when depth is increased
Aristotle
Speed of light
Convection
48. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Voltage
Buoyant force
Conduction
Convert Celsius to Fahrenheit
49. The level stays the same
when ice in water melts what happens?
Present velocity
pressure at depth h
mechanical wave
50. P + density x g h
Conduction
pressure at depth h
variation of pressure with depth
First Law of thermodynamics