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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. Sounds above 20 -000 Hz
Stable
Heat capacity equation
ultrasound
Newton's Second Law
2. If the CG is above the edge - the object will not fall
Condition for stability
Engine efficiency cannot be 100%
Voltage
Net force
3. Equals total momentum after collision
entropy
Conservation of energy
Total momentum before collision
Buoyant force
4. T^4
Torque
Period
Brahe
Thermal radiation
5. Current x voltage energy/time (joules per second)
definition of Bernoulii's equation
Heat
Convert Fahrenheit to Celsius
Power (watts)
6. 1 / period (time)
Frequency
Thermal conductivity
Power (watts)
Flow through a pipe
7. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Newton
Heat
volume fluid flow rate formula
Center of gravity (CG)
8. A disturbance that propagates through a medium
measure of density
density of aluminum
Rotational inertia (moment of inertia)
mechanical wave
9. The force that brings a system back to equilibrium
Centripedal acceleration=
ultrasound
restoring force
Centripedal acceleration=
10. A disturbance that propagates through a medium
Rotational inertia (moment of inertia)
1 BTU
Energy of motion (kinetic energy)
mechanical wave
11. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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12. Work done / heat in
Fluid force
period of a pendulum T of length L
Engine efficiency
Engine efficiency cannot be 100%
13. 9/5T(C)+32
Convert Celsius to Fahrenheit
Net force?0 net torque=0
Total momentum before collision
Stable
14. 1 -000 kg/m^3
Projectile
density of water
bernoulli's equation
Flow through a pipe
15. Fbottom-Ftop=mg=(density x vol) x g
First Law of thermodynamics
pressure at depth h
variation of pressure with depth
Projectile
16.
Energy of motion (kinetic energy)
Change in internal energy
Present velocity
Heat
17. Rod with forces applied at opposite ends in opposite directions
Wavelength
Net force=0 net torque?0
order of states of matter stronger to lesser forces between atoms
entropy
18. Z+n
Equilibrium
Kepler
azX
First Law of thermodynamics
19. Sounds above 20 -000 Hz
Aristotle
ultrasound
Wavelength
period p of a mass m oscillating on a horizontal spring of force constant k
20. C / f
atmospheric pressure (atm)
Wavelength
atmospheric pressure (atm)
Wave speed=
21. Heat Q= mass of sample x specific heat x temp change
Net force
viscosity
Radiation
Heat capacity equation
22. The sum of the energy of all the molecules in the system
density of lead
Internal energy
Frequency
Conservation of energy
23. The effectiveness of a material in conducting heat
Thermal radiation
Heat
law of conservation of energy
Thermal conductivity
24. Decreases
the pressure of liquids _____ when it goes faster
wave
density of air
frequency of light
25. T(C) +273
Thermal radiation
Convert Celsius to Kelven
bernoulli's equation
Speed of light
26. Why things move
Brahe
Velocity=
Mechanics
Heat
27. The energy that flows from one system to another because of their temperature difference.
density of air
Aristotle
Heat
Stable
28. Are wider at the base (which lowers their center of gravity)
First Law of thermodynamics
Stable structures
period p of a mass m oscillating on a horizontal spring of force constant k
period p of a mass m oscillating on a horizontal spring of force constant k
29. Time required to complete one cycle
Period
viscosity
Why does something move?
Thermodynamics
30. Maximum displacement from equilibrium
amplitude
Power (watts)
Internal energy
azX
31. V1 x A1=v2 x A2
period of a pendulum T of length L
Conduction
incoming and outgoing flow rate formula
Wave speed=
32. Equals total momentum after collision
Acceleration
Photon energy
Total momentum before collision
The US uses how much of the total world energy consumption?
33. The heat transfer by electromagnetic waves - thermal light waves
azX
infrasound
Radiation
Equilibrium
34. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
law of conservation of energy
Einstein
pressure does what when depth is increased
law of conservation of energy
35. Kg/m^3
Einstein
measure of density
Net force?0 net torque=0
Thermodynamics
36. Because nothing stops it
Why does something move?
Buoyant force
measurement of pressure
Engine efficiency
37. You can't get more work out than the energy you put in
Projectile
Engine efficiency
Conservation of energy
order of states of matter stronger to lesser forces between atoms
38. The level stays the same
Present velocity
Equilibrium
when ice in water melts what happens?
Internal energy
39. Not easy to knock over
order of states of matter stronger to lesser forces between atoms
Stable
Convert Celsius to Fahrenheit
Total momentum before collision
40. Time= the square root of 2 x height / acceleration due to gravity
continuity
Resistance
Time for an object thrown to reach maximum height
Torque
41. 18600 miles/sec
Acceleration
Convert Celsius to Fahrenheit
Speed of light
Weight
42. Believed that the natural state of objects was to be at rest
viscosity
Net force?0 net torque=0
Total momentum before collision
Aristotle
43. If energy is transferred and the internal energy of system B decreases by some amount then the internal energy of system A must incrase by the same amount.
First Law of thermodynamics
Thermal conductivity
density of water
pressure does what when depth is increased
44. The sum of the energy of all the molecules in the system
Internal energy
Emissive
density of air
density of lead
45. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.
Heat
Newton
Engine efficiency
entropy
46. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
Thermal radiation
Present velocity
Heat capacity (specific heat)
Net force
47. 2p x square root L/g
Thermal conductivity
mass flow rate formula
period of a pendulum T of length L
Convert Celsius to Kelven
48. 2p x square root L/g
The US uses how much of the total world energy consumption?
period of a pendulum T of length L
Velocity=
infrasound
49. 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.
Power (watts)
Second law of thermodynamics
Emissive
Einstein
50. T(C) +273
order of states of matter stronger to lesser forces between atoms
Engine efficiency
Convert Celsius to Kelven
First Law of thermodynamics