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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. 100 -000 n/m^2
Flow through a pipe
c=3x10^8 m/s
Fluid force
atmospheric pressure (atm)
2. C / f
Velocity=
Total momentum before collision
Wavelength
Net force?0 net torque=0
3. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
volume fluid flow rate
Net force=0 net torque?0
azX
definition of Bernoulii's equation
4. The combination of force and point of application
Convection
Convert Celsius to Kelven
Rotational inertia (moment of inertia)
Torque
5. Maximum displacement from equilibrium
Frequency
Radiation
Galileo
amplitude
6. Maximum displacement from equilibrium
volume fluid flow rate
pressure does what when depth is increased
amplitude
azX
7. The combination of force and point of application
Torque
The US uses how much of the total world energy consumption?
restoring force
Heat
8. The total disorder of an object
Internal energy
Energy of motion (kinetic energy)
entropy
Velocity=
9. The sum of the energy of all the molecules in the system
Internal energy
amplitude
Projectile
Resistance
10. Mass x specific heat x temperature change
volume fluid flow rate formula
Heat
Equilibrium
Present velocity
11. Wavelength x frequency
Conduction
Momentum
Engine efficiency cannot be 100%
Wave speed=
12. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Energy of motion (kinetic energy)
Einstein
Net force
Weight
13. Distance traveled / time
Heat
Velocity=
Projectile
Time for an object thrown to reach maximum height
14. 10 m/s^2
Resistance
Acceleration due to gravity on the earth
First Law of thermodynamics
Present velocity
15. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Buoyant force
Net force?0 net torque=0
law of conservation of energy
Stable structures
16. Equals total momentum after collision
Stable
Fluid force
Total momentum before collision
Projectile
17. 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.
wavelength
Emissive
measurement of pressure
Flow through a pipe
18. Heat into system - work done by system
Change in internal energy
ultrasound
incoming and outgoing flow rate formula
Fluid force
19. Force per unit area
Newton's Second Law
Conservation of energy
restoring force
Pressure=
20. Force x lever arm
variation of pressure with depth
when ice in water melts what happens?
Velocity=
Torque
21. The total force (positive and negative) acting upon an object
pressure does what when depth is increased
Radiation
Net force
Condition for stability
22. Mass x gravity
Newton's Second Law
Weight
Momentum
definition of Bernoulii's equation
23. T^4
pressure depends on
Period
Heat capacity (specific heat)
Thermal radiation
24. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Brahe
infrasound
Convection
period p of a mass m oscillating on a horizontal spring of force constant k
25. A tendency for liquids to resist flowing.
infrasound
viscosity
Resistance
wave
26. V1 x A1=v2 x A2
Net force?0 net torque=0
c=3x10^8 m/s
the pressure of liquids _____ when it goes faster
incoming and outgoing flow rate formula
27. It increases
restoring force
pressure does what when depth is increased
The US uses how much of the total world energy consumption?
Wave speed=
28. Time= the square root of 2 x height / acceleration due to gravity
incoming and outgoing flow rate formula
density of lead
Time for an object thrown to reach maximum height
amplitude
29. Rod with forces applied at opposite ends in opposite directions
Projectile
Power (watts)
Net force=0 net torque?0
Second law of thermodynamics
30. Rod with forces applied at opposite ends in opposite directions
Net force=0 net torque?0
law of conservation of energy
pressure at depth h
amplitude
31. 2 -700 kg/m^3
Engine efficiency cannot be 100%
density of aluminum
entropy
Power (watts)
32. Decreases
the pressure of liquids _____ when it goes faster
Frequency
Emissive
density of air
33. Number density x temperature
Brahe
Velocity required for an object to reach height h
Frequency
pressure depends on
34. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
ultrasound
mechanical wave
volume fluid flow rate formula
measurement of pressure
35. 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).
variation of pressure with depth
Thermal radiation
Stable structures
Physics
36. F=mass x acceleration
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37. Pressure x area
Quantum mechanics
pressure depends on
Fluid force
Heat
38. V x A= constant
Brahe
continuity
Weight
Brahe
39. Number density x temperature
Engine efficiency
density of aluminum
pressure depends on
Kepler
40. 25%
The US uses how much of the total world energy consumption?
density of lead
density of water
Engine efficiency
41. A tendency for liquids to resist flowing.
Present velocity
azX
viscosity
1 BTU
42. If the CG is above the edge - the object will not fall
Condition for stability
wave
Mechanics
Convert Celsius to Kelven
43. You can't get more work out than the energy you put in
Internal energy
Acceleration
amplitude
Conservation of energy
44. The sum of the energy of all the molecules in the system
Pressure=
Internal energy
c=3x10^8 m/s
Emissive
45. Current x resistance
Voltage
Projectile
Acceleration
Rotational inertia (moment of inertia)
46. Not easy to knock over
Convert Celsius to Kelven
bernoulli's equation
Stable
static fluid formula
47. Kg/m^3
density of water
Rotational inertia (moment of inertia)
Momentum
measure of density
48. New theory that explained behavior at the atomic level
Radiation
Quantum mechanics
Heat
Change in internal energy
49. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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50. Z+n
Second law of thermodynamics
azX
Mechanics
Acceleration