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Test your basic knowledge |
Everyday Physics
Start Test
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Subjects
:
science
,
literacy
Instructions:
Answer 50 questions in 15 minutes.
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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. Length of a wave
Internal energy
wavelength
law of conservation of energy
infrasound
2. 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
Acceleration
ultrasound
definition of Bernoulii's equation
3. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
Period
Stable structures
ultrasound
4. How much torque it takes to get an object rotating
Rotational inertia (moment of inertia)
Heat capacity (specific heat)
Total momentum before collision
Fluid force
5. The effectiveness of a material in conducting heat
Engine efficiency cannot be 100%
continuity
Thermal conductivity
pressure depends on
6. F=mass x acceleration
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7. Pascal (Pa) or pounds per square inch (psi)
Center of gravity (CG)
Quantum mechanics
measurement of pressure
Resistance
8. 1 / period (time)
Frequency
Total momentum before collision
period p of a mass m oscillating on a horizontal spring of force constant k
Flow through a pipe
9. P(P2-P1)D^4/128Ln n=fluid's viscosity
Net force=0 net torque?0
Weight
Flow through a pipe
continuity
10. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Energy of motion (kinetic energy)
static fluid formula
1 BTU
density of lead
11. The total force (positive and negative) acting upon an object
Net force
Velocity required for an object to reach height h
Physics
Frequency
12. Heat is carried from place to place by the bulk movement of either liquids or gasses
1 BTU
atmospheric pressure (atm)
Emissive
Convection
13. Maximum displacement from equilibrium
amplitude
Fluid force
Mechanics
Internal energy
14. 1 -000 kg/m^3
incoming and outgoing flow rate formula
infrasound
density of water
Projectile
15. Net force=0 net torque=0
Physics
Equilibrium
Net force
Flow through a pipe
16. If the CG is above the edge - the object will not fall
Speed of light
Conduction
Condition for stability
Period
17. Heat Q= mass of sample x specific heat x temp change
Convert Fahrenheit to Celsius
Speed of light
c=3x10^8 m/s
Heat capacity equation
18. Time= the square root of 2 x height / acceleration due to gravity
Distance traveled
Velocity required for an object to reach height h
Time for an object thrown to reach maximum height
The US uses how much of the total world energy consumption?
19. A disturbance that propagates through a medium
infrasound
Speed of light
azX
mechanical wave
20. Z+n
continuity
Heat
azX
Buoyant force
21. Fbottom-Ftop=mg=(density x vol) x g
variation of pressure with depth
continuity
Heat capacity equation
Net force?0 net torque=0
22. T^4
Period
Photon energy
Speed of light
Thermal radiation
23. Equals total momentum after collision
Kepler
Total momentum before collision
restoring force
pressure depends on
24. 10 m/s^2
Why does something move?
Acceleration due to gravity on the earth
static fluid formula
Stable
25. T^4
Thermal radiation
bernoulli's equation
variation of pressure with depth
incoming and outgoing flow rate formula
26. Heat is transferred directly through a material with no bulk movement of material
Center of gravity (CG)
Newton's Second Law
Photon energy
Conduction
27. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Torque
Einstein
wavelength
The US uses how much of the total world energy consumption?
28. 25%
The US uses how much of the total world energy consumption?
Kepler
Heat
wavelength
29. It increases
c=3x10^8 m/s
Convert Celsius to Fahrenheit
pressure does what when depth is increased
Stable structures
30. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
density of water
Velocity=
Second law of thermodynamics
ultrasound
31. The combination of force and point of application
Velocity=
Brahe
Torque
volume fluid flow rate
32. Decreases
Weight
density of air
Heat
the pressure of liquids _____ when it goes faster
33. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Net force
Speed of light
Newton
ultrasound
34. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Torque
Radiation
Newton
Center of gravity (CG)
35. 18600 miles/sec
Aristotle
Net force?0 net torque=0
Speed of light
pressure depends on
36. 18600 miles/sec
Speed of light
Convert Celsius to Kelven
the pressure of liquids _____ when it goes faster
First Law of thermodynamics
37. The effectiveness of a material in conducting heat
restoring force
Thermal conductivity
Einstein
amplitude
38. C/n
ultrasound
velocity through a medium
Engine efficiency cannot be 100%
Thermal conductivity
39. Maximum displacement from equilibrium
viscosity
amplitude
period of a pendulum T of length L
density of lead
40. Sounds above 20 -000 Hz
atmospheric pressure (atm)
Velocity=
Period
ultrasound
41. The energy that flows from one system to another because of their temperature difference.
pressure does what when depth is increased
Heat
Acceleration due to gravity on the earth
Voltage
42. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Time for an object thrown to reach maximum height
Rotational inertia (moment of inertia)
Kepler
Center of gravity (CG)
43. Time required to complete one cycle
Conduction
Convection
Period
Centripedal acceleration=
44. Pressure x area
pressure does what when depth is increased
Fluid force
measure of density
Voltage
45. Believed that the natural state of objects was to be at rest
frequency of light
variation of pressure with depth
Aristotle
measure of density
46. Mass x velocity
Projectile
Momentum
Einstein
Total momentum before collision
47. 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.
Resistance
Physics
Conduction
First Law of thermodynamics
48. Current x resistance
Voltage
Why does something move?
Heat
density of aluminum
49. The total force (positive and negative) acting upon an object
Net force
Kepler
Torque
Newton's Second Law
50. Fbottom-Ftop=mg=(density x vol) x g
Galileo
Total momentum before collision
Convert Celsius to Kelven
variation of pressure with depth
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