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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 total disorder of an object
entropy
Centripedal acceleration=
Speed of light
measure of density
2. Maximum displacement from equilibrium
amplitude
Momentum
restoring force
Equilibrium
3. Are wider at the base (which lowers their center of gravity)
Convection
Newton
Acceleration
Stable structures
4. Fbottom-Ftop=mg=(density x vol) x g
Net force?0 net torque=0
Time for an object thrown to reach maximum height
variation of pressure with depth
Brahe
5. 9/5T(C)+32
Convert Fahrenheit to Celsius
Convert Celsius to Fahrenheit
Pressure=
Frequency
6. Mass x gravity
viscosity
Thermodynamics
Aristotle
Weight
7. 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.
Velocity required for an object to reach height h
density of air
Pressure=
Emissive
8. Voltage / current
Resistance
Heat capacity equation
Engine efficiency
Condition for stability
9. Fbottom=Ftop+mg where mg is the weight of the volume
static fluid formula
Convert Celsius to Fahrenheit
Galileo
Heat capacity (specific heat)
10. The sum of the energy of all the molecules in the system
infrasound
Internal energy
Equilibrium
Wave speed=
11. Heat is transferred directly through a material with no bulk movement of material
Wave speed=
Change in internal energy
Speed of light
Conduction
12. 2 -700 kg/m^3
Engine efficiency cannot be 100%
Time for an object thrown to reach maximum height
measure of density
density of aluminum
13. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
the pressure of liquids _____ when it goes faster
Buoyant force
Second law of thermodynamics
Distance traveled
14. A disturbance that moves through something
Heat capacity (specific heat)
infrasound
entropy
wave
15. P(P2-P1)D^4/128Ln n=fluid's viscosity
Net force
Energy of motion (kinetic energy)
Photon energy
Flow through a pipe
16. C / f
mass flow rate formula
Newton
pressure depends on
Wavelength
17. 11 -000 kg/m^3
density of lead
Convection
static fluid formula
c=3x10^8 m/s
18. Distance traveled / time
Velocity=
Heat capacity equation
Weight
Mechanics
19. 1 / period (time)
density of water
Radiation
Frequency
Velocity required for an object to reach height h
20. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Mechanics
Second law of thermodynamics
Thermal radiation
Net force?0 net torque=0
21. Length of a wave
Thermal conductivity
The US uses how much of the total world energy consumption?
Brahe
wavelength
22. Pascal (Pa) or pounds per square inch (psi)
Mechanics
measurement of pressure
Heat
Momentum
23. Work done / heat in
Engine efficiency
continuity
Pressure=
ultrasound
24. Current x voltage energy/time (joules per second)
pressure depends on
Wavelength
ultrasound
Power (watts)
25. T(C) +273
Net force
measurement of pressure
Convert Celsius to Kelven
1 BTU
26. 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.
Engine efficiency
density of water
Mechanics
Emissive
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).
Energy of motion (kinetic energy)
Speed of light
law of conservation of energy
Physics
28. Wavelength x frequency
Kepler
Stable
Wave speed=
ultrasound
29. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
viscosity
Brahe
atmospheric pressure (atm)
Momentum
30. New theory that explained behavior at the atomic level
density of lead
Quantum mechanics
Internal energy
Present velocity
31. Time= the square root of 2 x height / acceleration due to gravity
Time for an object thrown to reach maximum height
Total momentum before collision
velocity through a medium
density of lead
32. V1 x A1=v2 x A2
Thermodynamics
mechanical wave
incoming and outgoing flow rate formula
Stable structures
33. Net force=0 net torque=0
entropy
incoming and outgoing flow rate formula
Wave speed=
Equilibrium
34. 1 / period (time)
viscosity
Frequency
Center of gravity (CG)
Velocity=
35. Sounds below 30 Hz
Flow through a pipe
Convert Celsius to Fahrenheit
density of air
infrasound
36. 18600 miles/sec
Newton
Speed of light
Period
density of air
37. Voltage / current
restoring force
infrasound
Net force=0 net torque?0
Resistance
38. It increases
pressure does what when depth is increased
volume fluid flow rate formula
Flow through a pipe
Brahe
39. The sum of the energy of all the molecules in the system
Heat capacity equation
Internal energy
The US uses how much of the total world energy consumption?
mechanical wave
40. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Stable
period p of a mass m oscillating on a horizontal spring of force constant k
Emissive
Newton
41. 2p x square root L/g
Quantum mechanics
volume fluid flow rate formula
period of a pendulum T of length L
amplitude
42. The center of an object
Heat capacity equation
Physics
Thermal conductivity
Center of gravity (CG)
43. The level stays the same
ultrasound
when ice in water melts what happens?
Thermal radiation
density of air
44.
Energy of motion (kinetic energy)
incoming and outgoing flow rate formula
when ice in water melts what happens?
Heat
45. The force that brings a system back to equilibrium
Physics
restoring force
Centripedal acceleration=
Aristotle
46. 25%
Wave speed=
The US uses how much of the total world energy consumption?
static fluid formula
Conduction
47. Hf
Center of gravity (CG)
Photon energy
Brahe
Net force?0 net torque=0
48. Why things move
Velocity=
Conduction
Stable structures
Mechanics
49. 1.25 kg/m^3
pressure depends on
density of air
Fluid force
Present velocity
50. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Brahe
Quantum mechanics
Newton's Second Law
1 BTU