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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. Are wider at the base (which lowers their center of gravity)
Engine efficiency cannot be 100%
Stable structures
Engine efficiency
incoming and outgoing flow rate formula
2. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
density of aluminum
Net force
period of a pendulum T of length L
3. T=2p square root m/k frequency= square root k/m;/2p
Net force
period p of a mass m oscillating on a horizontal spring of force constant k
Pressure=
Frequency
4. C/n
Physics
Mechanics
Centripedal acceleration=
velocity through a medium
5. 11 -000 kg/m^3
Acceleration due to gravity on the earth
density of lead
order of states of matter stronger to lesser forces between atoms
Acceleration
6. Kg/m^3
measure of density
Rotational inertia (moment of inertia)
frequency of light
Second law of thermodynamics
7. P x u x A
Acceleration
mass flow rate formula
First Law of thermodynamics
Buoyant force
8. Solids - liquids - gases
Buoyant force
Heat
Emissive
order of states of matter stronger to lesser forces between atoms
9. Believed that the natural state of objects was to be at rest
Equilibrium
Second law of thermodynamics
Quantum mechanics
Aristotle
10. Sounds above 20 -000 Hz
Fluid force
ultrasound
Why does something move?
Physics
11. Mass x velocity
infrasound
measurement of pressure
Power (watts)
Momentum
12. 1 -000 kg/m^3
Distance traveled
continuity
density of water
definition of Bernoulii's equation
13. The total disorder of an object
Mechanics
volume fluid flow rate formula
entropy
amplitude
14. Heat is transferred directly through a material with no bulk movement of material
Brahe
wave
Conduction
Equilibrium
15. Time required to complete one cycle
Equilibrium
Period
density of air
Present velocity
16. Because nothing stops it
Why does something move?
wave
Photon energy
c=3x10^8 m/s
17. Time= the square root of 2 x height / acceleration due to gravity
Conservation of energy
static fluid formula
Pressure=
Time for an object thrown to reach maximum height
18. 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.
velocity through a medium
pressure depends on
First Law of thermodynamics
wavelength
19. The combination of force and point of application
Torque
Quantum mechanics
Momentum
Centripedal acceleration=
20. Kg/m^3
mass flow rate formula
measure of density
Flow through a pipe
variation of pressure with depth
21. V1 x A1=v2 x A2
Galileo
incoming and outgoing flow rate formula
wavelength
entropy
22. 5/9 [T(F)-32]
Change in internal energy
Convert Fahrenheit to Celsius
Stable
Present velocity
23. You cant get as much out as you put in
Total momentum before collision
Conservation of energy
Engine efficiency cannot be 100%
mass flow rate formula
24. 11 -000 kg/m^3
Velocity required for an object to reach height h
density of lead
ultrasound
Speed of light
25. The force that brings a system back to equilibrium
Momentum
restoring force
Internal energy
Mechanics
26. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Newton's Second Law
amplitude
Projectile
Heat capacity (specific heat)
27. The effectiveness of a material in conducting heat
Thermal conductivity
Time for an object thrown to reach maximum height
Frequency
Energy of motion (kinetic energy)
28. Heat Q= mass of sample x specific heat x temp change
period of a pendulum T of length L
Frequency
Heat capacity equation
Center of gravity (CG)
29. 1 / period (time)
wave
density of air
Frequency
measure of density
30. 2p x square root L/g
Convection
azX
period of a pendulum T of length L
entropy
31. Voltage / current
Distance traveled
Resistance
Power (watts)
Conduction
32. Believed that the natural state of objects was to be at rest
Aristotle
Speed of light
Voltage
Photon energy
33. The sum of the energy of all the molecules in the system
Emissive
Internal energy
velocity through a medium
azX
34. 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
Wave speed=
Brahe
variation of pressure with depth
35. 1.25 kg/m^3
Net force?0 net torque=0
Flow through a pipe
density of air
order of states of matter stronger to lesser forces between atoms
36. The study of heat and its transformation into mechanical energy
Thermodynamics
definition of Bernoulii's equation
Kepler
Why does something move?
37. 2 -700 kg/m^3
Thermodynamics
density of aluminum
Power (watts)
Net force=0 net torque?0
38. Wavelength x frequency
infrasound
Einstein
Heat capacity (specific heat)
Wave speed=
39. Current x voltage energy/time (joules per second)
Power (watts)
Flow through a pipe
Radiation
Condition for stability
40. Hf
Photon energy
pressure does what when depth is increased
Engine efficiency
The US uses how much of the total world energy consumption?
41. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
mechanical wave
Second law of thermodynamics
azX
Convert Celsius to Kelven
42. 18600 miles/sec
The US uses how much of the total world energy consumption?
Total momentum before collision
Speed of light
Pressure=
43. Change in velocity / time
Acceleration
Centripedal acceleration=
Speed of light
Heat
44. Rod with forces applied at opposite ends in opposite directions
pressure at depth h
Net force=0 net torque?0
Physics
Thermal radiation
45. Time= the square root of 2 x height / acceleration due to gravity
Convert Fahrenheit to Celsius
Voltage
Time for an object thrown to reach maximum height
Distance traveled
46. Rod with forces applied at opposite ends in opposite directions
restoring force
Net force=0 net torque?0
Aristotle
Einstein
47. 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).
Frequency
variation of pressure with depth
Physics
Heat
48. 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.
mechanical wave
First Law of thermodynamics
Thermal conductivity
Pressure=
49. 1.25 kg/m^3
pressure at depth h
density of air
Equilibrium
restoring force
50. How much torque it takes to get an object rotating
volume fluid flow rate
Internal energy
Brahe
Rotational inertia (moment of inertia)