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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. 1.25 kg/m^3
pressure at depth h
Condition for stability
density of air
Internal energy
2. 18600 miles/sec
Net force?0 net torque=0
Change in internal energy
Total momentum before collision
Speed of light
3. The center of an object
Center of gravity (CG)
Galileo
Buoyant force
velocity through a medium
4. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
restoring force
the pressure of liquids _____ when it goes faster
Time for an object thrown to reach maximum height
Einstein
5. ?
frequency of light
Conservation of energy
infrasound
c=3x10^8 m/s
6. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
azX
Why does something move?
Newton
Acceleration due to gravity on the earth
7. 2p x square root L/g
Center of gravity (CG)
pressure does what when depth is increased
period of a pendulum T of length L
Buoyant force
8. The study of heat and its transformation into mechanical energy
Aristotle
Velocity=
Thermodynamics
Pressure=
9. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
variation of pressure with depth
Heat capacity (specific heat)
Frequency
Equilibrium
10. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.
Frequency
The US uses how much of the total world energy consumption?
Net force?0 net torque=0
Kepler
11. The change in internal energy= the heat absorbed- the work done
bernoulli's equation
wavelength
law of conservation of energy
azX
12. Current x resistance
Convert Fahrenheit to Celsius
volume fluid flow rate
Voltage
Aristotle
13. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.
infrasound
Period
Brahe
pressure depends on
14. C/n
Buoyant force
Kepler
velocity through a medium
the pressure of liquids _____ when it goes faster
15. T(C) +273
Net force?0 net torque=0
Velocity=
definition of Bernoulii's equation
Convert Celsius to Kelven
16. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
volume fluid flow rate formula
velocity through a medium
Conduction
Distance traveled
17. How much torque it takes to get an object rotating
Rotational inertia (moment of inertia)
Second law of thermodynamics
Mechanics
pressure depends on
18. V x A= constant
continuity
Flow through a pipe
volume fluid flow rate formula
Projectile
19. Current x resistance
Voltage
mechanical wave
Time for an object thrown to reach maximum height
Torque
20.
pressure depends on
Energy of motion (kinetic energy)
Distance traveled
Heat
21. Fbottom-Ftop=mg=(density x vol) x g
Torque
variation of pressure with depth
First Law of thermodynamics
Engine efficiency cannot be 100%
22. Mass x velocity
pressure does what when depth is increased
Resistance
Momentum
Present velocity
23. Why things move
1 BTU
Mechanics
Einstein
Heat
24. Rod with forces applied at opposite ends in the same direction
Physics
Heat
Net force?0 net torque=0
entropy
25. The heat transfer by electromagnetic waves - thermal light waves
frequency of light
Radiation
law of conservation of energy
Internal energy
26. P x u x A
definition of Bernoulii's equation
Weight
mass flow rate formula
amplitude
27. P(P2-P1)D^4/128Ln n=fluid's viscosity
Flow through a pipe
Buoyant force
wave
Torque
28. The combination of force and point of application
period p of a mass m oscillating on a horizontal spring of force constant k
Torque
law of conservation of energy
Speed of light
29. Maximum displacement from equilibrium
Kepler
amplitude
Engine efficiency
Voltage
30. Voltage / current
wavelength
Convection
ultrasound
Resistance
31.
Equilibrium
Energy of motion (kinetic energy)
1 BTU
Heat capacity (specific heat)
32. F=mass x acceleration
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33. 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.
order of states of matter stronger to lesser forces between atoms
Thermal conductivity
The US uses how much of the total world energy consumption?
Emissive
34. 1 / period (time)
Momentum
Thermal conductivity
Frequency
frequency of light
35. Heat is transferred directly through a material with no bulk movement of material
Energy of motion (kinetic energy)
volume fluid flow rate formula
Conduction
pressure depends on
36. It increases
Fluid force
pressure does what when depth is increased
Resistance
Time for an object thrown to reach maximum height
37. Distance traveled / time
Condition for stability
Heat
Convert Celsius to Fahrenheit
Velocity=
38. Rod with forces applied at opposite ends in the same direction
Thermodynamics
The US uses how much of the total world energy consumption?
Second law of thermodynamics
Net force?0 net torque=0
39. Speed of light / wavelength
Frequency
Engine efficiency cannot be 100%
frequency of light
measure of density
40. Mass x gravity
First Law of thermodynamics
Photon energy
Convection
Weight
41. The heat transfer by electromagnetic waves - thermal light waves
Radiation
when ice in water melts what happens?
Kepler
when ice in water melts what happens?
42. Fbottom=Ftop+mg where mg is the weight of the volume
Velocity=
Heat capacity equation
static fluid formula
Acceleration due to gravity on the earth
43. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)
Engine efficiency
mass flow rate formula
Second law of thermodynamics
Photon energy
44. 2p x square root L/g
period of a pendulum T of length L
Galileo
wavelength
pressure depends on
45. 1 -000 kg/m^3
density of water
period of a pendulum T of length L
Center of gravity (CG)
Convection
46. 25%
Projectile
The US uses how much of the total world energy consumption?
wavelength
density of air
47. Voltage / current
azX
Resistance
Brahe
Thermal radiation
48. Time required to complete one cycle
Convert Fahrenheit to Celsius
Period
incoming and outgoing flow rate formula
density of aluminum
49. 11 -000 kg/m^3
Velocity required for an object to reach height h
Quantum mechanics
Projectile
density of lead
50. The effectiveness of a material in conducting heat
Engine efficiency cannot be 100%
Acceleration due to gravity on the earth
density of lead
Thermal conductivity