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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. P(P2-P1)D^4/128Ln n=fluid's viscosity
Stable
Flow through a pipe
Thermal radiation
Net force?0 net torque=0
2. You can't get more work out than the energy you put in
Net force?0 net torque=0
Distance traveled
Thermal radiation
Conservation of energy
3. The center of an object
Voltage
wave
definition of Bernoulii's equation
Center of gravity (CG)
4. Mass x specific heat x temperature change
azX
Thermal conductivity
Heat
Voltage
5. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Second law of thermodynamics
Net force
Wavelength
Conservation of energy
6. Initial velocity= the square root of 2gh
Why does something move?
Condition for stability
Velocity required for an object to reach height h
volume fluid flow rate
7. You can't get more work out than the energy you put in
entropy
1 BTU
Thermodynamics
Conservation of energy
8. 10 m/s^2
Centripedal acceleration=
Heat
atmospheric pressure (atm)
Acceleration due to gravity on the earth
9. Number density x temperature
Second law of thermodynamics
pressure depends on
Engine efficiency cannot be 100%
Thermal conductivity
10. Current x resistance
Frequency
Voltage
1 BTU
incoming and outgoing flow rate formula
11. 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).
Brahe
The US uses how much of the total world energy consumption?
wave
Physics
12. Pascal (Pa) or pounds per square inch (psi)
Fluid force
volume fluid flow rate
definition of Bernoulii's equation
measurement of pressure
13. Rod with forces applied at opposite ends in the same direction
Aristotle
Net force?0 net torque=0
Present velocity
Convert Fahrenheit to Celsius
14. Current x voltage energy/time (joules per second)
Power (watts)
Fluid force
Pressure=
Energy of motion (kinetic energy)
15. Force per unit area
Second law of thermodynamics
Pressure=
Heat
amplitude
16. Equals total momentum after collision
Total momentum before collision
1 BTU
volume fluid flow rate
Equilibrium
17. 1 -000 kg/m^3
Galileo
density of water
law of conservation of energy
entropy
18. Net force=0 net torque=0
Stable structures
Buoyant force
Equilibrium
Net force
19. Because nothing stops it
Stable
Voltage
variation of pressure with depth
Why does something move?
20. Speed of light / wavelength
Rotational inertia (moment of inertia)
frequency of light
Net force
Present velocity
21. As the speed of a moving fluid increases - the pressure within the fluid decreases
22. 2 -700 kg/m^3
Quantum mechanics
density of aluminum
The US uses how much of the total world energy consumption?
Heat
23. C / f
Energy of motion (kinetic energy)
Heat
entropy
Wavelength
24. V x A= constant
Brahe
Thermodynamics
continuity
volume fluid flow rate formula
25. Mass x velocity
Centripedal acceleration=
Momentum
Mechanics
definition of Bernoulii's equation
26. The study of heat and its transformation into mechanical energy
definition of Bernoulii's equation
Thermodynamics
Conservation of energy
Centripedal acceleration=
27. Velocity squared / radius
Centripedal acceleration=
bernoulli's equation
Weight
Acceleration
28. Mass x velocity
Momentum
continuity
Conservation of energy
restoring force
29. Weight of displaced water=volume of displaced water in liters x 10 n / liter
Physics
viscosity
Buoyant force
Wavelength
30. Hf
Photon energy
Time for an object thrown to reach maximum height
mechanical wave
Buoyant force
31. Wavelength x frequency
when ice in water melts what happens?
Wave speed=
Momentum
incoming and outgoing flow rate formula
32. ?
Quantum mechanics
c=3x10^8 m/s
frequency of light
Torque
33. Rod with forces applied at opposite ends in opposite directions
Period
Fluid force
Conduction
Net force=0 net torque?0
34. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
35. It increases
pressure does what when depth is increased
Stable
static fluid formula
Engine efficiency cannot be 100%
36. Solids - liquids - gases
atmospheric pressure (atm)
order of states of matter stronger to lesser forces between atoms
The US uses how much of the total world energy consumption?
Rotational inertia (moment of inertia)
37. Time required to complete one cycle
measure of density
Fluid force
Internal energy
Period
38. The heat transfer by electromagnetic waves - thermal light waves
c=3x10^8 m/s
Mechanics
Velocity required for an object to reach height h
Radiation
39. Number density x temperature
pressure depends on
Galileo
Convert Celsius to Fahrenheit
Fluid force
40. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
frequency of light
Einstein
restoring force
Engine efficiency
41. The combination of force and point of application
Torque
frequency of light
Stable structures
First Law of thermodynamics
42. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Kepler
mass flow rate formula
Condition for stability
Net force=0 net torque?0
43. Fbottom-Ftop=mg=(density x vol) x g
continuity
variation of pressure with depth
Resistance
Internal energy
44. Heat into system - work done by system
Second law of thermodynamics
Time for an object thrown to reach maximum height
Change in internal energy
Aristotle
45. Wavelength x frequency
Wave speed=
The US uses how much of the total world energy consumption?
Brahe
Kepler
46. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Aristotle
Brahe
Second law of thermodynamics
Condition for stability
47. The center of an object
Equilibrium
Internal energy
Center of gravity (CG)
Net force?0 net torque=0
48. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Convert Celsius to Kelven
Aristotle
Kepler
Condition for stability
49. 1 / period (time)
atmospheric pressure (atm)
Galileo
period p of a mass m oscillating on a horizontal spring of force constant k
Frequency
50. The heat needed to raise the temperature of 1 pound of water by 1 degree F
measurement of pressure
Buoyant force
1 BTU
c=3x10^8 m/s