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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. The sum of the energy of all the molecules in the system
The US uses how much of the total world energy consumption?
Internal energy
Heat
Engine efficiency
2. Force x lever arm
1 BTU
Torque
Internal energy
Conservation of energy
3. Believed that the natural state of objects was to be at rest
Aristotle
atmospheric pressure (atm)
Einstein
Conservation of energy
4. Current x voltage energy/time (joules per second)
variation of pressure with depth
c=3x10^8 m/s
Power (watts)
Total momentum before collision
5. P x u x A
Thermal conductivity
infrasound
mass flow rate formula
volume fluid flow rate
6. The sum of the energy of all the molecules in the system
Internal energy
continuity
Emissive
The US uses how much of the total world energy consumption?
7. 18600 miles/sec
Speed of light
density of aluminum
Net force=0 net torque?0
velocity through a medium
8. Heat is transferred directly through a material with no bulk movement of material
Convert Celsius to Kelven
Conduction
pressure does what when depth is increased
Velocity=
9. Current x voltage energy/time (joules per second)
when ice in water melts what happens?
Present velocity
Power (watts)
Thermal radiation
10. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
11. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
1 BTU
Convert Celsius to Kelven
Radiation
Brahe
12. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Heat capacity (specific heat)
Buoyant force
Why does something move?
Change in internal energy
13. An object that is thrown or struck or shot and then travels under the influence of gravity
pressure depends on
Buoyant force
Projectile
pressure does what when depth is increased
14. Speed of light / wavelength
entropy
frequency of light
amplitude
Present velocity
15. P + density x g h
Change in internal energy
Projectile
pressure at depth h
incoming and outgoing flow rate formula
16. Time= the square root of 2 x height / acceleration due to gravity
Stable
Torque
Condition for stability
Time for an object thrown to reach maximum height
17. 1 -000 kg/m^3
mass flow rate formula
density of water
volume fluid flow rate
Second law of thermodynamics
18. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Thermodynamics
wavelength
Einstein
Thermodynamics
19. 25%
Buoyant force
The US uses how much of the total world energy consumption?
Conservation of energy
Total momentum before collision
20. Kg/m^3
static fluid formula
Acceleration
frequency of light
measure of density
21. Pressure x area
Power (watts)
Fluid force
Torque
Galileo
22. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Buoyant force
mass flow rate formula
Newton
Distance traveled
23. Work done / heat in
amplitude
Equilibrium
Engine efficiency
density of air
24. T(C) +273
Voltage
Convert Celsius to Kelven
variation of pressure with depth
Emissive
25. The combination of force and point of application
Distance traveled
definition of Bernoulii's equation
infrasound
Torque
26. P + density x g h
Acceleration due to gravity on the earth
Momentum
ultrasound
pressure at depth h
27. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Total momentum before collision
Acceleration due to gravity on the earth
Buoyant force
order of states of matter stronger to lesser forces between atoms
28. Pascal (Pa) or pounds per square inch (psi)
measurement of pressure
Stable structures
pressure does what when depth is increased
1 BTU
29. Sounds below 30 Hz
density of water
Equilibrium
atmospheric pressure (atm)
infrasound
30. Current x resistance
Net force?0 net torque=0
Voltage
Energy of motion (kinetic energy)
pressure depends on
31. Time= the square root of 2 x height / acceleration due to gravity
Kepler
Time for an object thrown to reach maximum height
Total momentum before collision
Convert Fahrenheit to Celsius
32. P(P2-P1)D^4/128Ln n=fluid's viscosity
wave
Resistance
Pressure=
Flow through a pipe
33. Force per unit area
Pressure=
Engine efficiency cannot be 100%
Convert Celsius to Fahrenheit
Stable structures
34. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Acceleration
density of lead
Power (watts)
Newton
35. 2 -700 kg/m^3
density of aluminum
Time for an object thrown to reach maximum height
infrasound
Condition for stability
36. Number density x temperature
pressure depends on
Convert Celsius to Kelven
Aristotle
Engine efficiency cannot be 100%
37. Believed that the natural state of objects was to be at rest
Thermal conductivity
Equilibrium
Aristotle
density of lead
38. ?
Time for an object thrown to reach maximum height
c=3x10^8 m/s
Pressure=
density of lead
39. Z+n
pressure does what when depth is increased
Aristotle
azX
Quantum mechanics
40. 1 -000 kg/m^3
density of water
Convert Fahrenheit to Celsius
period p of a mass m oscillating on a horizontal spring of force constant k
Conservation of energy
41. Force x lever arm
c=3x10^8 m/s
Torque
Kepler
Buoyant force
42. 10 m/s^2
Kepler
Acceleration due to gravity on the earth
Power (watts)
density of lead
43. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Energy of motion (kinetic energy)
mechanical wave
Pressure=
Kepler
44. The level stays the same
entropy
amplitude
First Law of thermodynamics
when ice in water melts what happens?
45. 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.
Internal energy
mechanical wave
Galileo
Fluid force
46. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Resistance
infrasound
Wave speed=
1 BTU
47. 5/9 [T(F)-32]
Convert Fahrenheit to Celsius
Physics
Aristotle
Radiation
48. Time required to complete one cycle
Energy of motion (kinetic energy)
Thermal conductivity
Galileo
Period
49. 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.
Galileo
period p of a mass m oscillating on a horizontal spring of force constant k
Emissive
atmospheric pressure (atm)
50. Number density x temperature
pressure depends on
Newton
Center of gravity (CG)
measure of density