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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 study of heat and its transformation into mechanical energy
Conservation of energy
Heat capacity (specific heat)
Thermodynamics
Wave speed=
2. The study of heat and its transformation into mechanical energy
measure of density
Why does something move?
velocity through a medium
Thermodynamics
3. Rod with forces applied at opposite ends in the same direction
Net force?0 net torque=0
density of water
Fluid force
Torque
4. Current x resistance
Brahe
Heat capacity equation
Voltage
Time for an object thrown to reach maximum height
5. 2 -700 kg/m^3
mechanical wave
when ice in water melts what happens?
density of aluminum
Total momentum before collision
6. Because nothing stops it
Conservation of energy
Mechanics
measure of density
Why does something move?
7. Decreases
volume fluid flow rate
Second law of thermodynamics
the pressure of liquids _____ when it goes faster
Velocity required for an object to reach height h
8. The first to do experimental studies of the laws of motion and was Imprisoned by Pope Urban VIII in 1633 for advocating the Copernican theory - also know as the heliocentric theory - that the earth was a planet revolving around the sun.
Projectile
bernoulli's equation
Buoyant force
Galileo
9. A disturbance that moves through something
Quantum mechanics
wave
Engine efficiency
Buoyant force
10. Fbottom=Ftop+mg where mg is the weight of the volume
Flow through a pipe
Heat capacity (specific heat)
static fluid formula
bernoulli's equation
11. Change in velocity / time
Acceleration
First Law of thermodynamics
bernoulli's equation
Distance traveled
12. The force that brings a system back to equilibrium
density of water
restoring force
Fluid force
Time for an object thrown to reach maximum height
13. Heat is carried from place to place by the bulk movement of either liquids or gasses
Torque
Convection
Velocity required for an object to reach height h
Net force
14. The change in internal energy= the heat absorbed- the work done
period of a pendulum T of length L
measurement of pressure
law of conservation of energy
Time for an object thrown to reach maximum height
15. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s
Rotational inertia (moment of inertia)
Flow through a pipe
volume fluid flow rate
Net force
16. Distance traveled / time
Wavelength
Frequency
Velocity=
Stable
17. Heat is carried from place to place by the bulk movement of either liquids or gasses
Stable structures
Convection
Heat
order of states of matter stronger to lesser forces between atoms
18.
Distance traveled
Momentum
density of air
Voltage
19. An object that is thrown or struck or shot and then travels under the influence of gravity
Projectile
Thermal conductivity
density of air
period p of a mass m oscillating on a horizontal spring of force constant k
20. Number density x temperature
Velocity required for an object to reach height h
pressure depends on
Period
definition of Bernoulii's equation
21. Force x lever arm
Heat
Aristotle
Torque
Photon energy
22. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)
density of aluminum
volume fluid flow rate formula
Stable
Velocity=
23. Rod with forces applied at opposite ends in opposite directions
Net force=0 net torque?0
Quantum mechanics
Emissive
Pressure=
24. P x u x A
Engine efficiency
c=3x10^8 m/s
Emissive
mass flow rate formula
25. The center of an object
Center of gravity (CG)
Mechanics
c=3x10^8 m/s
Rotational inertia (moment of inertia)
26. The total disorder of an object
incoming and outgoing flow rate formula
Center of gravity (CG)
Radiation
entropy
27. Maximum displacement from equilibrium
incoming and outgoing flow rate formula
Second law of thermodynamics
Torque
amplitude
28. A tendency for liquids to resist flowing.
viscosity
definition of Bernoulii's equation
Distance traveled
Weight
29. 1 -000 kg/m^3
density of water
Energy of motion (kinetic energy)
bernoulli's equation
Resistance
30. The energy that flows from one system to another because of their temperature difference.
pressure at depth h
Net force=0 net torque?0
Heat
Engine efficiency
31. Not easy to knock over
pressure depends on
bernoulli's equation
Stable
Wavelength
32. The energy that flows from one system to another because of their temperature difference.
measurement of pressure
Heat
Photon energy
density of air
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.
Newton
Emissive
frequency of light
static fluid formula
34. Work done / heat in
static fluid formula
Engine efficiency
Photon energy
infrasound
35. T^4
Quantum mechanics
Thermal radiation
Convert Celsius to Fahrenheit
Conservation of energy
36. 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).
Physics
Brahe
Equilibrium
Thermal radiation
37. 25%
The US uses how much of the total world energy consumption?
density of lead
Internal energy
volume fluid flow rate formula
38. Heat Q= mass of sample x specific heat x temp change
Change in internal energy
Change in internal energy
Heat capacity equation
Condition for stability
39. Because nothing stops it
definition of Bernoulii's equation
period p of a mass m oscillating on a horizontal spring of force constant k
Why does something move?
incoming and outgoing flow rate formula
40. Heat is transferred directly through a material with no bulk movement of material
entropy
Heat
density of aluminum
Conduction
41. Pressure x area
definition of Bernoulii's equation
Fluid force
Pressure=
Torque
42. Why things move
Mechanics
incoming and outgoing flow rate formula
density of lead
the pressure of liquids _____ when it goes faster
43. A tendency for liquids to resist flowing.
viscosity
Velocity required for an object to reach height h
The US uses how much of the total world energy consumption?
Heat capacity (specific heat)
44. Speed of light / wavelength
Period
frequency of light
mechanical wave
amplitude
45. An object that is thrown or struck or shot and then travels under the influence of gravity
Net force?0 net torque=0
Centripedal acceleration=
Projectile
Net force=0 net torque?0
46. 2 -700 kg/m^3
Centripedal acceleration=
Power (watts)
Buoyant force
density of aluminum
47. The total force (positive and negative) acting upon an object
Net force
Frequency
when ice in water melts what happens?
Wavelength
48. The sum of the energy of all the molecules in the system
Internal energy
atmospheric pressure (atm)
The US uses how much of the total world energy consumption?
Flow through a pipe
49. Mass x velocity
Thermodynamics
Momentum
Condition for stability
Convert Celsius to Kelven
50. The heat transfer by electromagnetic waves - thermal light waves
Radiation
pressure depends on
Wave speed=
order of states of matter stronger to lesser forces between atoms