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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. P(P2-P1)D^4/128Ln n=fluid's viscosity
Galileo
Total momentum before collision
Newton's Second Law
Flow through a pipe
2. ?
Mechanics
Second law of thermodynamics
Frequency
c=3x10^8 m/s
3. The change in internal energy= the heat absorbed- the work done
law of conservation of energy
Velocity required for an object to reach height h
Newton
Center of gravity (CG)
4. Why things move
c=3x10^8 m/s
Thermal radiation
Mechanics
Kepler
5. Equals total momentum after collision
incoming and outgoing flow rate formula
Total momentum before collision
Why does something move?
Torque
6. Believed that the natural state of objects was to be at rest
Aristotle
incoming and outgoing flow rate formula
Center of gravity (CG)
Galileo
7. 2p x square root L/g
measure of density
Thermodynamics
period of a pendulum T of length L
amplitude
8. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
1 BTU
Quantum mechanics
Second law of thermodynamics
c=3x10^8 m/s
9. 18600 miles/sec
Speed of light
Wave speed=
definition of Bernoulii's equation
Conduction
10. New theory that explained behavior at the atomic level
Why does something move?
Quantum mechanics
Projectile
Weight
11. Force x lever arm
Torque
Weight
Power (watts)
Acceleration
12. Hf
Pressure=
Photon energy
Heat capacity (specific heat)
Torque
13. Fbottom=Ftop+mg where mg is the weight of the volume
Centripedal acceleration=
azX
Net force
static fluid formula
14. Mass x velocity
Momentum
viscosity
Net force?0 net torque=0
static fluid formula
15. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
order of states of matter stronger to lesser forces between atoms
bernoulli's equation
amplitude
volume fluid flow rate formula
16. 25%
The US uses how much of the total world energy consumption?
Power (watts)
Pressure=
density of lead
17. Hf
Second law of thermodynamics
definition of Bernoulii's equation
Photon energy
Physics
18. Rod with forces applied at opposite ends in opposite directions
Kepler
Center of gravity (CG)
Net force=0 net torque?0
period of a pendulum T of length L
19. Because nothing stops it
Physics
Thermal conductivity
Conservation of energy
Why does something move?
20. Number density x temperature
density of aluminum
pressure depends on
Total momentum before collision
entropy
21. C/n
definition of Bernoulii's equation
Thermal conductivity
density of lead
velocity through a medium
22. The total force (positive and negative) acting upon an object
velocity through a medium
Weight
Net force
Rotational inertia (moment of inertia)
23. P + density x g h
Convection
Wave speed=
pressure at depth h
Flow through a pipe
24. It increases
Convert Celsius to Kelven
Resistance
pressure does what when depth is increased
mechanical wave
25. Initial velocity = acceleration x time
Condition for stability
Distance traveled
Conduction
Present velocity
26. Initial velocity = acceleration x time
ultrasound
Internal energy
Period
Present velocity
27. 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.
First Law of thermodynamics
period of a pendulum T of length L
Convert Celsius to Kelven
Velocity=
28. P x u x A
mass flow rate formula
Convection
Convert Celsius to Kelven
law of conservation of energy
29. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Einstein
Thermal radiation
Net force=0 net torque?0
Torque
30. The effectiveness of a material in conducting heat
Why does something move?
The US uses how much of the total world energy consumption?
Power (watts)
Thermal conductivity
31. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
Conduction
Voltage
when ice in water melts what happens?
volume fluid flow rate
32. 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.
Galileo
pressure at depth h
Weight
measurement of pressure
33. 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.
Kepler
Aristotle
Emissive
period p of a mass m oscillating on a horizontal spring of force constant k
34. T=2p square root m/k frequency= square root k/m;/2p
Convert Celsius to Fahrenheit
Convert Celsius to Kelven
period p of a mass m oscillating on a horizontal spring of force constant k
when ice in water melts what happens?
35. An object that is thrown or struck or shot and then travels under the influence of gravity
Projectile
Internal energy
mechanical wave
Center of gravity (CG)
36. Current x resistance
1 BTU
incoming and outgoing flow rate formula
variation of pressure with depth
Voltage
37. 5/9 [T(F)-32]
measure of density
Convert Fahrenheit to Celsius
measurement of pressure
Mechanics
38. Voltage / current
Pressure=
Fluid force
Kepler
Resistance
39. Heat is transferred directly through a material with no bulk movement of material
Conduction
frequency of light
Period
Galileo
40. Distance traveled / time
Net force
Flow through a pipe
Velocity=
Heat
41. T^4
Thermal radiation
restoring force
Thermal conductivity
Net force?0 net torque=0
42. The total disorder of an object
Heat
entropy
when ice in water melts what happens?
Convert Fahrenheit to Celsius
43. Time= the square root of 2 x height / acceleration due to gravity
Convert Celsius to Kelven
Time for an object thrown to reach maximum height
Photon energy
Power (watts)
44. If the CG is above the edge - the object will not fall
Condition for stability
Mechanics
Centripedal acceleration=
when ice in water melts what happens?
45. 2 -700 kg/m^3
volume fluid flow rate formula
volume fluid flow rate
density of aluminum
density of water
46. Not easy to knock over
volume fluid flow rate
density of water
Present velocity
Stable
47. Speed of light / wavelength
frequency of light
Stable
Torque
Second law of thermodynamics
48. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
First Law of thermodynamics
Einstein
Buoyant force
Newton's Second Law
49. Solids - liquids - gases
Aristotle
Heat capacity (specific heat)
the pressure of liquids _____ when it goes faster
order of states of matter stronger to lesser forces between atoms
50. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Convert Celsius to Fahrenheit
Heat capacity (specific heat)
volume fluid flow rate formula
Energy of motion (kinetic energy)