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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 heat transfer by electromagnetic waves - thermal light waves
Newton
Radiation
Heat
Centripedal acceleration=
2. Work done / heat in
Voltage
Conservation of energy
Acceleration due to gravity on the earth
Engine efficiency
3. Current x voltage energy/time (joules per second)
Internal energy
when ice in water melts what happens?
Power (watts)
Period
4. Sounds below 30 Hz
Net force=0 net torque?0
volume fluid flow rate formula
infrasound
Photon energy
5. Velocity squared / radius
Buoyant force
Period
Velocity=
Centripedal acceleration=
6. 25%
Voltage
Condition for stability
Rotational inertia (moment of inertia)
The US uses how much of the total world energy consumption?
7. A disturbance that moves through something
Heat
ultrasound
Radiation
wave
8. C / f
viscosity
Flow through a pipe
Wavelength
Momentum
9. Heat is carried from place to place by the bulk movement of either liquids or gasses
Velocity required for an object to reach height h
Acceleration due to gravity on the earth
Convection
Thermodynamics
10. 2 -700 kg/m^3
Rotational inertia (moment of inertia)
viscosity
wave
density of aluminum
11. How much torque it takes to get an object rotating
pressure does what when depth is increased
Rotational inertia (moment of inertia)
Heat capacity equation
Resistance
12. Speed of light / wavelength
frequency of light
density of water
order of states of matter stronger to lesser forces between atoms
Weight
13. ?
c=3x10^8 m/s
Power (watts)
Convection
Rotational inertia (moment of inertia)
14.
Kepler
pressure does what when depth is increased
Convert Celsius to Kelven
Distance traveled
15. The center of an object
Center of gravity (CG)
Time for an object thrown to reach maximum height
velocity through a medium
Stable structures
16. Because nothing stops it
Why does something move?
Velocity=
First Law of thermodynamics
pressure depends on
17. As the speed of a moving fluid increases - the pressure within the fluid decreases
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18. New theory that explained behavior at the atomic level
Brahe
entropy
Quantum mechanics
Velocity=
19. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
Einstein
mechanical wave
volume fluid flow rate
Wave speed=
20. Rod with forces applied at opposite ends in opposite directions
Net force=0 net torque?0
entropy
Convert Celsius to Kelven
incoming and outgoing flow rate formula
21. How much torque it takes to get an object rotating
Convert Fahrenheit to Celsius
Rotational inertia (moment of inertia)
entropy
Einstein
22. Heat into system - work done by system
Thermal conductivity
Change in internal energy
Thermal conductivity
Center of gravity (CG)
23. The heat needed to raise the temperature of 1 pound of water by 1 degree F
Net force=0 net torque?0
Change in internal energy
1 BTU
Present velocity
24. Pascal (Pa) or pounds per square inch (psi)
measurement of pressure
continuity
Change in internal energy
Heat capacity (specific heat)
25. Heat is transferred directly through a material with no bulk movement of material
Heat
Equilibrium
pressure at depth h
Conduction
26. T=2p square root m/k frequency= square root k/m;/2p
Center of gravity (CG)
measure of density
period p of a mass m oscillating on a horizontal spring of force constant k
entropy
27. The force that brings a system back to equilibrium
Radiation
Velocity required for an object to reach height h
wavelength
restoring force
28. Mass x specific heat x temperature change
Present velocity
Convert Celsius to Fahrenheit
velocity through a medium
Heat
29. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.
density of air
density of aluminum
Heat capacity (specific heat)
wave
30. 10 m/s^2
Acceleration due to gravity on the earth
Center of gravity (CG)
pressure does what when depth is increased
mechanical wave
31. The energy that flows from one system to another because of their temperature difference.
Heat
pressure depends on
Thermodynamics
wavelength
32. 1.25 kg/m^3
law of conservation of energy
atmospheric pressure (atm)
density of air
Period
33. 1 / period (time)
azX
variation of pressure with depth
Fluid force
Frequency
34. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
Projectile
Engine efficiency cannot be 100%
volume fluid flow rate formula
Center of gravity (CG)
35. Heat into system - work done by system
Pressure=
bernoulli's equation
Energy of motion (kinetic energy)
Change in internal energy
36. Pressure x area
1 BTU
when ice in water melts what happens?
Fluid force
Physics
37. 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).
Flow through a pipe
Convection
Physics
ultrasound
38. 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.
Emissive
Heat
Physics
definition of Bernoulii's equation
39. V x A= constant
Quantum mechanics
Rotational inertia (moment of inertia)
continuity
Projectile
40. 2p x square root L/g
Resistance
azX
period of a pendulum T of length L
The US uses how much of the total world energy consumption?
41. Distance traveled / time
Present velocity
Velocity=
volume fluid flow rate formula
Physics
42. ?
Mechanics
Momentum
c=3x10^8 m/s
Thermodynamics
43. Sounds below 30 Hz
Second law of thermodynamics
infrasound
viscosity
Convert Celsius to Fahrenheit
44. The total force (positive and negative) acting upon an object
entropy
Net force
density of aluminum
atmospheric pressure (atm)
45. As the speed of a moving fluid increases - the pressure within the fluid decreases
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46. Decreases
pressure does what when depth is increased
period of a pendulum T of length L
the pressure of liquids _____ when it goes faster
Pressure=
47. Hf
Photon energy
Why does something move?
Thermal conductivity
volume fluid flow rate
48. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +
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49. Why things move
Mechanics
Aristotle
ultrasound
continuity
50. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.
measure of density
Einstein
restoring force
Torque