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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. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Newton
Thermal conductivity
Wave speed=
Centripedal acceleration=
2. Pressure x area
Mechanics
Acceleration due to gravity on the earth
Fluid force
ultrasound
3. C/n
Velocity required for an object to reach height h
velocity through a medium
variation of pressure with depth
pressure does what when depth is increased
4. Equals total momentum after collision
Radiation
pressure at depth h
Buoyant force
Total momentum before collision
5. 5/9 [T(F)-32]
Convert Fahrenheit to Celsius
volume fluid flow rate formula
Buoyant force
Photon energy
6. Fbottom-Ftop=mg=(density x vol) x g
variation of pressure with depth
Engine efficiency
Condition for stability
Conservation of energy
7. A tendency for liquids to resist flowing.
viscosity
Conservation of energy
Stable structures
c=3x10^8 m/s
8. A disturbance that moves through something
Power (watts)
wave
viscosity
Stable structures
9. 1 / period (time)
Frequency
Newton
Why does something move?
order of states of matter stronger to lesser forces between atoms
10. 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)
Photon energy
Stable structures
Convert Celsius to Kelven
11. Rod with forces applied at opposite ends in opposite directions
pressure does what when depth is increased
Net force=0 net torque?0
Period
Physics
12. Are wider at the base (which lowers their center of gravity)
Stable structures
Speed of light
Centripedal acceleration=
Brahe
13. 5/9 [T(F)-32]
Convert Fahrenheit to Celsius
Conservation of energy
entropy
Projectile
14. 11 -000 kg/m^3
The US uses how much of the total world energy consumption?
law of conservation of energy
density of lead
Mechanics
15. 2p x square root L/g
Speed of light
period of a pendulum T of length L
Speed of light
Center of gravity (CG)
16. The level stays the same
when ice in water melts what happens?
Heat capacity (specific heat)
definition of Bernoulii's equation
Acceleration
17. Kg/m^3
pressure depends on
Heat
bernoulli's equation
measure of density
18. Force x lever arm
Torque
mass flow rate formula
wave
Engine efficiency cannot be 100%
19. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Heat
infrasound
Kepler
Period
20. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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21. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Second law of thermodynamics
Heat capacity (specific heat)
Engine efficiency cannot be 100%
Period
22. The combination of force and point of application
Momentum
Engine efficiency
Torque
Convection
23. The study of heat and its transformation into mechanical energy
continuity
Heat capacity equation
Thermodynamics
Equilibrium
24. The center of an object
entropy
Heat
Center of gravity (CG)
measurement of pressure
25. Heat into system - work done by system
when ice in water melts what happens?
Change in internal energy
amplitude
Present velocity
26. C / f
Net force
Wavelength
Heat capacity equation
Brahe
27. 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).
continuity
The US uses how much of the total world energy consumption?
Physics
Conservation of energy
28. Sounds above 20 -000 Hz
Net force=0 net torque?0
Change in internal energy
ultrasound
Time for an object thrown to reach maximum height
29. Decreases
Stable
mechanical wave
Condition for stability
the pressure of liquids _____ when it goes faster
30. The sum of the energy of all the molecules in the system
Equilibrium
bernoulli's equation
First Law of thermodynamics
Internal energy
31. Rod with forces applied at opposite ends in the same direction
Net force?0 net torque=0
Engine efficiency cannot be 100%
Torque
Internal energy
32. Length of a wave
volume fluid flow rate
wavelength
Newton
azX
33. 2 -700 kg/m^3
density of aluminum
Acceleration
Voltage
Second law of thermodynamics
34. V1 x A1=v2 x A2
Total momentum before collision
incoming and outgoing flow rate formula
density of air
Frequency
35. Velocity squared / radius
Centripedal acceleration=
amplitude
Flow through a pipe
Frequency
36. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
Thermodynamics
Brahe
measure of density
entropy
37. It increases
density of water
Velocity=
pressure does what when depth is increased
Wavelength
38. Length of a wave
wavelength
density of water
Center of gravity (CG)
Net force?0 net torque=0
39. Mass x gravity
Internal energy
Weight
Acceleration
velocity through a medium
40. The total disorder of an object
Galileo
Heat capacity equation
Stable
entropy
41. 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
Kepler
Weight
restoring force
42. Heat is carried from place to place by the bulk movement of either liquids or gasses
the pressure of liquids _____ when it goes faster
Thermodynamics
Convection
amplitude
43. You can't get more work out than the energy you put in
Thermodynamics
Emissive
Change in internal energy
Conservation of energy
44. The change in internal energy= the heat absorbed- the work done
Period
Velocity required for an object to reach height h
law of conservation of energy
variation of pressure with depth
45. 18600 miles/sec
Speed of light
Pressure=
Present velocity
Period
46. C/n
velocity through a medium
Photon energy
mechanical wave
Projectile
47. The force that brings a system back to equilibrium
pressure at depth h
restoring force
Condition for stability
First Law of thermodynamics
48. V x A= constant
Galileo
continuity
Voltage
ultrasound
49. P x u x A
mass flow rate formula
Fluid force
frequency of light
wavelength
50. Wavelength x frequency
Convection
Wave speed=
static fluid formula
1 BTU