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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. You cant get as much out as you put in
Conduction
Engine efficiency cannot be 100%
Heat capacity equation
Mechanics
2. Kg/m^3
pressure does what when depth is increased
restoring force
Internal energy
measure of density
3. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Centripedal acceleration=
restoring force
Thermal radiation
1 BTU
4. The study of heat and its transformation into mechanical energy
Thermodynamics
viscosity
Voltage
Radiation
5. Initial velocity= the square root of 2gh
Convert Fahrenheit to Celsius
Velocity required for an object to reach height h
Weight
Heat capacity equation
6. Pressure x area
Fluid force
density of aluminum
Net force?0 net torque=0
Velocity=
7. Force x lever arm
Torque
Voltage
Center of gravity (CG)
Why does something move?
8. 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.
Distance traveled
Physics
pressure depends on
Emissive
9. P + density x g h
Energy of motion (kinetic energy)
mass flow rate formula
Convection
pressure at depth h
10. How much torque it takes to get an object rotating
Net force?0 net torque=0
Rotational inertia (moment of inertia)
amplitude
Projectile
11. Z+n
Fluid force
Emissive
azX
wave
12. Pascal (Pa) or pounds per square inch (psi)
measurement of pressure
Radiation
Pressure=
Energy of motion (kinetic energy)
13. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
pressure at depth h
entropy
volume fluid flow rate formula
Weight
14. Current x voltage energy/time (joules per second)
Weight
Engine efficiency cannot be 100%
Acceleration
Power (watts)
15. Are wider at the base (which lowers their center of gravity)
Heat capacity equation
Second law of thermodynamics
Voltage
Stable structures
16. Sounds below 30 Hz
Present velocity
infrasound
Heat capacity (specific heat)
The US uses how much of the total world energy consumption?
17. Hf
Projectile
Frequency
Photon energy
Second law of thermodynamics
18. Pressure x area
volume fluid flow rate
variation of pressure with depth
Center of gravity (CG)
Fluid force
19. V x A= constant
continuity
measurement of pressure
volume fluid flow rate formula
velocity through a medium
20. Number density x temperature
ultrasound
density of lead
pressure depends on
Voltage
21. 11 -000 kg/m^3
Condition for stability
density of lead
Total momentum before collision
Second law of thermodynamics
22. 1 / period (time)
Velocity required for an object to reach height h
Frequency
pressure does what when depth is increased
Convert Celsius to Fahrenheit
23. Time required to complete one cycle
atmospheric pressure (atm)
Quantum mechanics
Condition for stability
Period
24. 5/9 [T(F)-32]
incoming and outgoing flow rate formula
Stable structures
Convert Fahrenheit to Celsius
viscosity
25. The effectiveness of a material in conducting heat
Center of gravity (CG)
Distance traveled
First Law of thermodynamics
Thermal conductivity
26. 9/5T(C)+32
measurement of pressure
Resistance
Convert Celsius to Fahrenheit
the pressure of liquids _____ when it goes faster
27. Sounds above 20 -000 Hz
pressure does what when depth is increased
wave
ultrasound
Conduction
28. Heat into system - work done by system
ultrasound
Change in internal energy
mechanical wave
Power (watts)
29. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Flow through a pipe
Newton
Weight
frequency of light
30. Heat is carried from place to place by the bulk movement of either liquids or gasses
Velocity required for an object to reach height h
Net force=0 net torque?0
Acceleration due to gravity on the earth
Convection
31. 100 -000 n/m^2
atmospheric pressure (atm)
The US uses how much of the total world energy consumption?
Equilibrium
Total momentum before collision
32. The effectiveness of a material in conducting heat
Thermal conductivity
Wave speed=
Convection
Acceleration due to gravity on the earth
33. Why things move
Newton
Fluid force
Mechanics
Velocity required for an object to reach height h
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.
mechanical wave
Newton
Galileo
Quantum mechanics
35. The sum of the energy of all the molecules in the system
Internal energy
Acceleration
atmospheric pressure (atm)
Power (watts)
36. C / f
Aristotle
Projectile
Wavelength
Mechanics
37. ?
Engine efficiency cannot be 100%
Resistance
c=3x10^8 m/s
The US uses how much of the total world energy consumption?
38. Maximum displacement from equilibrium
First Law of thermodynamics
bernoulli's equation
Frequency
amplitude
39. Wavelength x frequency
Thermal conductivity
Fluid force
Wave speed=
Energy of motion (kinetic energy)
40. The change in internal energy= the heat absorbed- the work done
law of conservation of energy
Einstein
measure of density
Radiation
41. The energy that flows from one system to another because of their temperature difference.
Total momentum before collision
Second law of thermodynamics
Rotational inertia (moment of inertia)
Heat
42. Heat into system - work done by system
Galileo
pressure does what when depth is increased
Change in internal energy
Thermal conductivity
43. Decreases
the pressure of liquids _____ when it goes faster
bernoulli's equation
Torque
Equilibrium
44. 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.
Resistance
Galileo
amplitude
Conservation of energy
45. T(C) +273
Convert Celsius to Kelven
Thermodynamics
Power (watts)
period of a pendulum T of length L
46. 10 m/s^2
Stable structures
variation of pressure with depth
Acceleration due to gravity on the earth
static fluid formula
47. If the CG is above the edge - the object will not fall
restoring force
pressure depends on
measure of density
Condition for stability
48. A tendency for liquids to resist flowing.
viscosity
density of water
wave
Aristotle
49. V1 x A1=v2 x A2
Heat capacity (specific heat)
order of states of matter stronger to lesser forces between atoms
law of conservation of energy
incoming and outgoing flow rate formula
50. Not easy to knock over
Engine efficiency
Stable
azX
Conduction