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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. Work done / heat in
Brahe
Engine efficiency
Newton
Period
2. Sounds below 30 Hz
Galileo
density of water
infrasound
The US uses how much of the total world energy consumption?
3. Because nothing stops it
Galileo
Why does something move?
Buoyant force
Change in internal energy
4. Decreases
Net force
the pressure of liquids _____ when it goes faster
Convert Celsius to Fahrenheit
Equilibrium
5. Initial velocity= the square root of 2gh
Second law of thermodynamics
azX
Torque
Velocity required for an object to reach height h
6. Not easy to knock over
pressure at depth h
Stable
Convection
density of aluminum
7. 1 -000 kg/m^3
Torque
Wavelength
Heat
density of water
8. Force per unit area
azX
amplitude
Pressure=
density of air
9. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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10. 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.
Velocity required for an object to reach height h
density of lead
density of water
First Law of thermodynamics
11. ?
Engine efficiency cannot be 100%
Velocity required for an object to reach height h
c=3x10^8 m/s
Speed of light
12. Rod with forces applied at opposite ends in the same direction
Net force?0 net torque=0
Thermodynamics
amplitude
c=3x10^8 m/s
13. 2p x square root L/g
period of a pendulum T of length L
c=3x10^8 m/s
Rotational inertia (moment of inertia)
Thermal radiation
14. Solids - liquids - gases
incoming and outgoing flow rate formula
order of states of matter stronger to lesser forces between atoms
Net force?0 net torque=0
infrasound
15. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Frequency
Radiation
Einstein
volume fluid flow rate formula
16. The study of heat and its transformation into mechanical energy
period p of a mass m oscillating on a horizontal spring of force constant k
Thermodynamics
Conduction
Wavelength
17. Number density x temperature
definition of Bernoulii's equation
Velocity required for an object to reach height h
pressure depends on
bernoulli's equation
18. As the speed of a moving fluid increases - the pressure within the fluid decreases
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19. T^4
Galileo
viscosity
Thermal radiation
Momentum
20. 11 -000 kg/m^3
density of lead
Convert Celsius to Fahrenheit
Heat capacity equation
Conservation of energy
21. The effectiveness of a material in conducting heat
Thermal radiation
Photon energy
Thermal conductivity
continuity
22. The study of heat and its transformation into mechanical energy
Time for an object thrown to reach maximum height
Thermodynamics
Acceleration due to gravity on the earth
restoring force
23. Decreases
viscosity
Conduction
the pressure of liquids _____ when it goes faster
Fluid force
24. The center of an object
Heat
Center of gravity (CG)
static fluid formula
entropy
25. New theory that explained behavior at the atomic level
Quantum mechanics
Pressure=
Thermal conductivity
Resistance
26. Maximum displacement from equilibrium
amplitude
density of air
variation of pressure with depth
Centripedal acceleration=
27. Mass x velocity
Momentum
Heat
Distance traveled
Torque
28. Mass x velocity
Thermal conductivity
Momentum
Mechanics
Time for an object thrown to reach maximum height
29. Current x voltage energy/time (joules per second)
Galileo
period p of a mass m oscillating on a horizontal spring of force constant k
Mechanics
Power (watts)
30. Time required to complete one cycle
Wavelength
Period
Physics
Why does something move?
31. Equals total momentum after collision
entropy
Present velocity
Total momentum before collision
Center of gravity (CG)
32. C / f
Wavelength
Center of gravity (CG)
Net force?0 net torque=0
Equilibrium
33. Time= the square root of 2 x height / acceleration due to gravity
Torque
Time for an object thrown to reach maximum height
density of lead
Wave speed=
34. As the speed of a moving fluid increases - the pressure within the fluid decreases
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35. You can't get more work out than the energy you put in
Change in internal energy
volume fluid flow rate
Conservation of energy
Newton's Second Law
36. Pascal (Pa) or pounds per square inch (psi)
Pressure=
Centripedal acceleration=
measurement of pressure
velocity through a medium
37. Current x voltage energy/time (joules per second)
Frequency
Speed of light
Power (watts)
Present velocity
38. The force that brings a system back to equilibrium
Heat capacity equation
restoring force
Wave speed=
Center of gravity (CG)
39. 1 / period (time)
Buoyant force
volume fluid flow rate
Wavelength
Frequency
40. The center of an object
the pressure of liquids _____ when it goes faster
Condition for stability
wave
Center of gravity (CG)
41. C / f
Engine efficiency
Wave speed=
Buoyant force
Wavelength
42. The total disorder of an object
Conduction
entropy
The US uses how much of the total world energy consumption?
Brahe
43. The energy that flows from one system to another because of their temperature difference.
Net force?0 net torque=0
Heat
restoring force
Engine efficiency cannot be 100%
44. Sounds above 20 -000 Hz
Newton
ultrasound
when ice in water melts what happens?
density of water
45. 9/5T(C)+32
Period
Velocity required for an object to reach height h
Distance traveled
Convert Celsius to Fahrenheit
46. Why things move
Emissive
Mechanics
Flow through a pipe
Convert Celsius to Kelven
47. T(C) +273
period of a pendulum T of length L
Convert Celsius to Kelven
Conservation of energy
Net force=0 net torque?0
48. If the CG is above the edge - the object will not fall
definition of Bernoulii's equation
Condition for stability
pressure at depth h
wave
49. The combination of force and point of application
continuity
Torque
Stable structures
Velocity=
50. Heat into system - work done by system
Weight
Why does something move?
Change in internal energy
Net force?0 net torque=0