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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. A tendency for liquids to resist flowing.
variation of pressure with depth
viscosity
Rotational inertia (moment of inertia)
Mechanics
2. How much torque it takes to get an object rotating
Energy of motion (kinetic energy)
order of states of matter stronger to lesser forces between atoms
Rotational inertia (moment of inertia)
c=3x10^8 m/s
3. A disturbance that propagates through a medium
Kepler
Net force?0 net torque=0
mechanical wave
the pressure of liquids _____ when it goes faster
4. Mass x gravity
Weight
Galileo
amplitude
variation of pressure with depth
5. Heat is carried from place to place by the bulk movement of either liquids or gasses
Convection
Conservation of energy
azX
Thermodynamics
6. Heat is transferred directly through a material with no bulk movement of material
amplitude
Torque
Wavelength
Conduction
7. The force that brings a system back to equilibrium
The US uses how much of the total world energy consumption?
measure of density
restoring force
Rotational inertia (moment of inertia)
8. 2p x square root L/g
Why does something move?
First Law of thermodynamics
mechanical wave
period of a pendulum T of length L
9. As the speed of a moving fluid increases - the pressure within the fluid decreases
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10. Current x voltage energy/time (joules per second)
velocity through a medium
First Law of thermodynamics
Change in internal energy
Power (watts)
11. Time required to complete one cycle
density of air
Period
measure of density
Thermal radiation
12. Initial velocity = acceleration x time
Present velocity
Convert Fahrenheit to Celsius
definition of Bernoulii's equation
density of lead
13. Heat into system - work done by system
Change in internal energy
wave
pressure depends on
period of a pendulum T of length L
14. Sounds below 30 Hz
Energy of motion (kinetic energy)
infrasound
Total momentum before collision
First Law of thermodynamics
15. If the CG is above the edge - the object will not fall
Condition for stability
wavelength
Torque
Radiation
16. Mass x velocity
Momentum
Newton
period p of a mass m oscillating on a horizontal spring of force constant k
Radiation
17. Voltage / current
wave
Resistance
continuity
ultrasound
18. 11 -000 kg/m^3
density of air
density of lead
Convert Celsius to Fahrenheit
Conduction
19. The effectiveness of a material in conducting heat
Change in internal energy
Thermal conductivity
Conservation of energy
density of water
20. V x A= constant
continuity
Galileo
atmospheric pressure (atm)
when ice in water melts what happens?
21. Force x lever arm
Period
period of a pendulum T of length L
Flow through a pipe
Torque
22. The total force (positive and negative) acting upon an object
Fluid force
Net force
Net force?0 net torque=0
Change in internal energy
23. Number density x temperature
Condition for stability
pressure depends on
wavelength
Torque
24. Distance traveled / time
Velocity=
1 BTU
Velocity required for an object to reach height h
Thermal radiation
25. 2p x square root L/g
Voltage
wave
Velocity required for an object to reach height h
period of a pendulum T of length L
26. 100 -000 n/m^2
Engine efficiency
Stable
Quantum mechanics
atmospheric pressure (atm)
27. Sounds below 30 Hz
pressure at depth h
infrasound
Mechanics
azX
28. The energy that flows from one system to another because of their temperature difference.
Heat
mass flow rate formula
wave
the pressure of liquids _____ when it goes faster
29. 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.
Centripedal acceleration=
First Law of thermodynamics
azX
bernoulli's equation
30. If the CG is above the edge - the object will not fall
measure of density
Condition for stability
restoring force
Heat
31. Rod with forces applied at opposite ends in opposite directions
Torque
Net force=0 net torque?0
Stable structures
Torque
32. Are wider at the base (which lowers their center of gravity)
density of aluminum
mass flow rate formula
Conservation of energy
Stable structures
33. The center of an object
density of air
Center of gravity (CG)
infrasound
Flow through a pipe
34. Initial velocity = acceleration x time
Wavelength
Thermodynamics
Newton
Present velocity
35. P(P2-P1)D^4/128Ln n=fluid's viscosity
Convection
law of conservation of energy
Speed of light
Flow through a pipe
36. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Resistance
Voltage
Kepler
density of water
37. 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.
Voltage
Second law of thermodynamics
Emissive
Projectile
38. Force x lever arm
Acceleration due to gravity on the earth
mass flow rate formula
Weight
Torque
39.
Distance traveled
bernoulli's equation
Conduction
Heat
40. P(P2-P1)D^4/128Ln n=fluid's viscosity
Rotational inertia (moment of inertia)
Flow through a pipe
Stable
density of lead
41. Current x resistance
Voltage
Convection
Weight
Engine efficiency
42. The heat transfer by electromagnetic waves - thermal light waves
Acceleration
Total momentum before collision
Radiation
Why does something move?
43. C / f
Wavelength
1 BTU
Period
pressure depends on
44.
Wave speed=
Condition for stability
Rotational inertia (moment of inertia)
Distance traveled
45. V x A= constant
continuity
Quantum mechanics
c=3x10^8 m/s
Resistance
46. Solids - liquids - gases
pressure does what when depth is increased
order of states of matter stronger to lesser forces between atoms
Thermal radiation
when ice in water melts what happens?
47. An object that is thrown or struck or shot and then travels under the influence of gravity
Projectile
Heat capacity equation
Rotational inertia (moment of inertia)
Frequency
48. Pressure x area
Fluid force
incoming and outgoing flow rate formula
Power (watts)
Convert Celsius to Kelven
49. Work done / heat in
mechanical wave
First Law of thermodynamics
Engine efficiency
Kepler
50. Current x resistance
Voltage
the pressure of liquids _____ when it goes faster
Fluid force
Aristotle